diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 9841bad6f271..99a08722124d 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1011,7 +1011,7 @@
earlyprintk=serial[,0x...[,baudrate]]
earlyprintk=ttySn[,baudrate]
earlyprintk=dbgp[debugController#]
- earlyprintk=pciserial,bus:device.function[,baudrate]
+ earlyprintk=pciserial[,force],bus:device.function[,baudrate]
earlyprintk=xdbc[xhciController#]
earlyprintk is useful when the kernel crashes before
@@ -1043,6 +1043,10 @@
The sclp output can only be used on s390.
+ The optional "force" to "pciserial" enables use of a
+ PCI device even when its classcode is not of the
+ UART class.
+
edac_report= [HW,EDAC] Control how to report EDAC event
Format: {"on" | "off" | "force"}
on: enable EDAC to report H/W event. May be overridden
diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index ea91cb61a602..43f066cde67d 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -4,8 +4,9 @@ Virtual memory map with 4 level page tables:
0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm
hole caused by [47:63] sign extension
ffff800000000000 - ffff87ffffffffff (=43 bits) guard hole, reserved for hypervisor
-ffff880000000000 - ffffc7ffffffffff (=64 TB) direct mapping of all phys. memory
-ffffc80000000000 - ffffc8ffffffffff (=40 bits) hole
+ffff880000000000 - ffff887fffffffff (=39 bits) LDT remap for PTI
+ffff888000000000 - ffffc87fffffffff (=64 TB) direct mapping of all phys. memory
+ffffc88000000000 - ffffc8ffffffffff (=39 bits) hole
ffffc90000000000 - ffffe8ffffffffff (=45 bits) vmalloc/ioremap space
ffffe90000000000 - ffffe9ffffffffff (=40 bits) hole
ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
@@ -30,8 +31,9 @@ Virtual memory map with 5 level page tables:
0000000000000000 - 00ffffffffffffff (=56 bits) user space, different per mm
hole caused by [56:63] sign extension
ff00000000000000 - ff0fffffffffffff (=52 bits) guard hole, reserved for hypervisor
-ff10000000000000 - ff8fffffffffffff (=55 bits) direct mapping of all phys. memory
-ff90000000000000 - ff9fffffffffffff (=52 bits) LDT remap for PTI
+ff10000000000000 - ff10ffffffffffff (=48 bits) LDT remap for PTI
+ff11000000000000 - ff90ffffffffffff (=55 bits) direct mapping of all phys. memory
+ff91000000000000 - ff9fffffffffffff (=3840 TB) hole
ffa0000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space (12800 TB)
ffd2000000000000 - ffd3ffffffffffff (=49 bits) hole
ffd4000000000000 - ffd5ffffffffffff (=49 bits) virtual memory map (512TB)
diff --git a/Makefile b/Makefile
index 0f42814095a4..874d72a3e6a7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 14
-SUBLEVEL = 83
+SUBLEVEL = 84
EXTRAVERSION =
NAME = Petit Gorille
diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 43393208229e..d79eaa816f29 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -93,6 +93,7 @@ static inline unsigned long __percpu_##op(void *ptr, \
: [val] "Ir" (val)); \
break; \
default: \
+ ret = 0; \
BUILD_BUG(); \
} \
\
@@ -122,6 +123,7 @@ static inline unsigned long __percpu_read(void *ptr, int size)
ret = READ_ONCE(*(u64 *)ptr);
break;
default:
+ ret = 0;
BUILD_BUG();
}
@@ -191,6 +193,7 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val,
: [val] "r" (val));
break;
default:
+ ret = 0;
BUILD_BUG();
}
diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c
index 22a5921562c7..0417c929d21a 100644
--- a/arch/arm64/kernel/probes/kprobes.c
+++ b/arch/arm64/kernel/probes/kprobes.c
@@ -23,7 +23,9 @@
#include <linux/slab.h>
#include <linux/stop_machine.h>
#include <linux/sched/debug.h>
+#include <linux/set_memory.h>
#include <linux/stringify.h>
+#include <linux/vmalloc.h>
#include <asm/traps.h>
#include <asm/ptrace.h>
#include <asm/cacheflush.h>
@@ -42,10 +44,21 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
static void __kprobes
post_kprobe_handler(struct kprobe_ctlblk *, struct pt_regs *);
+static int __kprobes patch_text(kprobe_opcode_t *addr, u32 opcode)
+{
+ void *addrs[1];
+ u32 insns[1];
+
+ addrs[0] = addr;
+ insns[0] = opcode;
+
+ return aarch64_insn_patch_text(addrs, insns, 1);
+}
+
static void __kprobes arch_prepare_ss_slot(struct kprobe *p)
{
/* prepare insn slot */
- p->ainsn.api.insn[0] = cpu_to_le32(p->opcode);
+ patch_text(p->ainsn.api.insn, p->opcode);
flush_icache_range((uintptr_t) (p->ainsn.api.insn),
(uintptr_t) (p->ainsn.api.insn) +
@@ -118,15 +131,15 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
return 0;
}
-static int __kprobes patch_text(kprobe_opcode_t *addr, u32 opcode)
+void *alloc_insn_page(void)
{
- void *addrs[1];
- u32 insns[1];
+ void *page;
- addrs[0] = (void *)addr;
- insns[0] = (u32)opcode;
+ page = vmalloc_exec(PAGE_SIZE);
+ if (page)
+ set_memory_ro((unsigned long)page, 1);
- return aarch64_insn_patch_text(addrs, insns, 1);
+ return page;
}
/* arm kprobe: install breakpoint in text */
diff --git a/arch/mips/configs/cavium_octeon_defconfig b/arch/mips/configs/cavium_octeon_defconfig
index 490b12af103c..c52d0efacd14 100644
--- a/arch/mips/configs/cavium_octeon_defconfig
+++ b/arch/mips/configs/cavium_octeon_defconfig
@@ -140,6 +140,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_STAGING=y
CONFIG_OCTEON_ETHERNET=y
+CONFIG_OCTEON_USB=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_RAS=y
CONFIG_EXT4_FS=y
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 746d03423333..61e91fee8467 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -376,7 +376,7 @@ static int __hw_perf_event_init(struct perf_event *event)
return -ENOENT;
if (ev > PERF_CPUM_CF_MAX_CTR)
- return -EINVAL;
+ return -ENOENT;
/* Obtain the counter set to which the specified counter belongs */
set = get_counter_set(ev);
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index 308564b9bf68..101cadabfc89 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -33,7 +33,7 @@ UBSAN_SANITIZE := n
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
# link rule for the .so file, .lds has to be first
-$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32)
+$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE
$(call if_changed,vdso32ld)
# strip rule for the .so file
@@ -42,12 +42,12 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
$(call if_changed,objcopy)
# assembly rules for the .S files
-$(obj-vdso32): %.o: %.S
+$(obj-vdso32): %.o: %.S FORCE
$(call if_changed_dep,vdso32as)
# actual build commands
quiet_cmd_vdso32ld = VDSO32L $@
- cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
+ cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $(filter %.lds %.o,$^) -o $@
quiet_cmd_vdso32as = VDSO32A $@
cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $<
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index f81ae7998883..36bbafcf4a77 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -33,7 +33,7 @@ UBSAN_SANITIZE := n
$(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
# link rule for the .so file, .lds has to be first
-$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64)
+$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) FORCE
$(call if_changed,vdso64ld)
# strip rule for the .so file
@@ -42,12 +42,12 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE
$(call if_changed,objcopy)
# assembly rules for the .S files
-$(obj-vdso64): %.o: %.S
+$(obj-vdso64): %.o: %.S FORCE
$(call if_changed_dep,vdso64as)
# actual build commands
quiet_cmd_vdso64ld = VDSO64L $@
- cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@
+ cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $(filter %.lds %.o,$^) -o $@
quiet_cmd_vdso64as = VDSO64A $@
cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $<
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index 5bd374491f94..6c151b42e65d 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -54,6 +54,7 @@ int __node_distance(int a, int b)
{
return mode->distance ? mode->distance(a, b) : 0;
}
+EXPORT_SYMBOL(__node_distance);
int numa_debug_enabled;
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index c94c3bd70ccd..df4a985716eb 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -610,6 +610,11 @@ int start_idle_thread(void *stack, jmp_buf *switch_buf)
fatal_sigsegv();
}
longjmp(*switch_buf, 1);
+
+ /* unreachable */
+ printk(UM_KERN_ERR "impossible long jump!");
+ fatal_sigsegv();
+ return 0;
}
void initial_thread_cb_skas(void (*proc)(void *), void *arg)
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index e1407312c412..74d531f6d518 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -33,14 +33,16 @@
/*
* Set __PAGE_OFFSET to the most negative possible address +
- * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
- * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
- * what Xen requires.
+ * PGDIR_SIZE*17 (pgd slot 273).
+ *
+ * The gap is to allow a space for LDT remap for PTI (1 pgd slot) and space for
+ * a hypervisor (16 slots). Choosing 16 slots for a hypervisor is arbitrary,
+ * but it's what Xen requires.
*/
#ifdef CONFIG_X86_5LEVEL
-#define __PAGE_OFFSET_BASE _AC(0xff10000000000000, UL)
+#define __PAGE_OFFSET_BASE _AC(0xff11000000000000, UL)
#else
-#define __PAGE_OFFSET_BASE _AC(0xffff880000000000, UL)
+#define __PAGE_OFFSET_BASE _AC(0xffff888000000000, UL)
#endif
#ifdef CONFIG_RANDOMIZE_MEMORY
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index 6b8f73dcbc2c..7764617b8f9c 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -88,16 +88,15 @@ typedef struct { pteval_t pte; } pte_t;
# define VMALLOC_SIZE_TB _AC(12800, UL)
# define __VMALLOC_BASE _AC(0xffa0000000000000, UL)
# define __VMEMMAP_BASE _AC(0xffd4000000000000, UL)
-# define LDT_PGD_ENTRY _AC(-112, UL)
-# define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT)
#else
# define VMALLOC_SIZE_TB _AC(32, UL)
# define __VMALLOC_BASE _AC(0xffffc90000000000, UL)
# define __VMEMMAP_BASE _AC(0xffffea0000000000, UL)
-# define LDT_PGD_ENTRY _AC(-3, UL)
-# define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT)
#endif
+#define LDT_PGD_ENTRY -240UL
+#define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT)
+
#ifdef CONFIG_RANDOMIZE_MEMORY
# define VMALLOC_START vmalloc_base
# define VMEMMAP_START vmemmap_base
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 5e801c8c8ce7..374a52fa5296 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -213,8 +213,9 @@ static unsigned int mem32_serial_in(unsigned long addr, int offset)
* early_pci_serial_init()
*
* This function is invoked when the early_printk param starts with "pciserial"
- * The rest of the param should be ",B:D.F,baud" where B, D & F describe the
- * location of a PCI device that must be a UART device.
+ * The rest of the param should be "[force],B:D.F,baud", where B, D & F describe
+ * the location of a PCI device that must be a UART device. "force" is optional
+ * and overrides the use of an UART device with a wrong PCI class code.
*/
static __init void early_pci_serial_init(char *s)
{
@@ -224,17 +225,23 @@ static __init void early_pci_serial_init(char *s)
u32 classcode, bar0;
u16 cmdreg;
char *e;
+ int force = 0;
-
- /*
- * First, part the param to get the BDF values
- */
if (*s == ',')
++s;
if (*s == 0)
return;
+ /* Force the use of an UART device with wrong class code */
+ if (!strncmp(s, "force,", 6)) {
+ force = 1;
+ s += 6;
+ }
+
+ /*
+ * Part the param to get the BDF values
+ */
bus = (u8)simple_strtoul(s, &e, 16);
s = e;
if (*s != ':')
@@ -253,7 +260,7 @@ static __init void early_pci_serial_init(char *s)
s++;
/*
- * Second, find the device from the BDF
+ * Find the device from the BDF
*/
cmdreg = read_pci_config(bus, slot, func, PCI_COMMAND);
classcode = read_pci_config(bus, slot, func, PCI_CLASS_REVISION);
@@ -264,8 +271,10 @@ static __init void early_pci_serial_init(char *s)
*/
if (((classcode >> 16 != PCI_CLASS_COMMUNICATION_MODEM) &&
(classcode >> 16 != PCI_CLASS_COMMUNICATION_SERIAL)) ||
- (((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */
- return;
+ (((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */ {
+ if (!force)
+ return;
+ }
/*
* Determine if it is IO or memory mapped
@@ -289,7 +298,7 @@ static __init void early_pci_serial_init(char *s)
}
/*
- * Lastly, initialize the hardware
+ * Initialize the hardware
*/
if (*s) {
if (strcmp(s, "nocfg") == 0)
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 26d713ecad34..65df298d4e9e 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -103,14 +103,6 @@ static struct ldt_struct *alloc_ldt_struct(unsigned int num_entries)
/*
* If PTI is enabled, this maps the LDT into the kernelmode and
* usermode tables for the given mm.
- *
- * There is no corresponding unmap function. Even if the LDT is freed, we
- * leave the PTEs around until the slot is reused or the mm is destroyed.
- * This is harmless: the LDT is always in ordinary memory, and no one will
- * access the freed slot.
- *
- * If we wanted to unmap freed LDTs, we'd also need to do a flush to make
- * it useful, and the flush would slow down modify_ldt().
*/
static int
map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
@@ -119,8 +111,8 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
bool is_vmalloc, had_top_level_entry;
unsigned long va;
spinlock_t *ptl;
+ int i, nr_pages;
pgd_t *pgd;
- int i;
if (!static_cpu_has(X86_FEATURE_PTI))
return 0;
@@ -141,7 +133,9 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
is_vmalloc = is_vmalloc_addr(ldt->entries);
- for (i = 0; i * PAGE_SIZE < ldt->nr_entries * LDT_ENTRY_SIZE; i++) {
+ nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE);
+
+ for (i = 0; i < nr_pages; i++) {
unsigned long offset = i << PAGE_SHIFT;
const void *src = (char *)ldt->entries + offset;
unsigned long pfn;
@@ -189,14 +183,42 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
}
}
- va = (unsigned long)ldt_slot_va(slot);
- flush_tlb_mm_range(mm, va, va + LDT_SLOT_STRIDE, 0);
-
ldt->slot = slot;
#endif
return 0;
}
+static void unmap_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt)
+{
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+ unsigned long va;
+ int i, nr_pages;
+
+ if (!ldt)
+ return;
+
+ /* LDT map/unmap is only required for PTI */
+ if (!static_cpu_has(X86_FEATURE_PTI))
+ return;
+
+ nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE);
+
+ for (i = 0; i < nr_pages; i++) {
+ unsigned long offset = i << PAGE_SHIFT;
+ spinlock_t *ptl;
+ pte_t *ptep;
+
+ va = (unsigned long)ldt_slot_va(ldt->slot) + offset;
+ ptep = get_locked_pte(mm, va, &ptl);
+ pte_clear(mm, va, ptep);
+ pte_unmap_unlock(ptep, ptl);
+ }
+
+ va = (unsigned long)ldt_slot_va(ldt->slot);
+ flush_tlb_mm_range(mm, va, va + nr_pages * PAGE_SIZE, 0);
+#endif /* CONFIG_PAGE_TABLE_ISOLATION */
+}
+
static void free_ldt_pgtables(struct mm_struct *mm)
{
#ifdef CONFIG_PAGE_TABLE_ISOLATION
@@ -433,6 +455,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
}
install_ldt(mm, new_ldt);
+ unmap_ldt_struct(mm, old_ldt);
free_ldt_struct(old_ldt);
error = 0;
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 8ed11a5b1a9d..b33fa127a613 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -1869,7 +1869,7 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
init_top_pgt[0] = __pgd(0);
/* Pre-constructed entries are in pfn, so convert to mfn */
- /* L4[272] -> level3_ident_pgt */
+ /* L4[273] -> level3_ident_pgt */
/* L4[511] -> level3_kernel_pgt */
convert_pfn_mfn(init_top_pgt);
@@ -1889,8 +1889,8 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn)
addr[0] = (unsigned long)pgd;
addr[1] = (unsigned long)l3;
addr[2] = (unsigned long)l2;
- /* Graft it onto L4[272][0]. Note that we creating an aliasing problem:
- * Both L4[272][0] and L4[511][510] have entries that point to the same
+ /* Graft it onto L4[273][0]. Note that we creating an aliasing problem:
+ * Both L4[273][0] and L4[511][510] have entries that point to the same
* L2 (PMD) tables. Meaning that if you modify it in __va space
* it will be also modified in the __ka space! (But if you just
* modify the PMD table to point to other PTE's or none, then you
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 88cd949003f3..ecd84d910ed2 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -30,6 +30,7 @@ static const struct acpi_device_id forbidden_id_list[] = {
{"PNP0200", 0}, /* AT DMA Controller */
{"ACPI0009", 0}, /* IOxAPIC */
{"ACPI000A", 0}, /* IOAPIC */
+ {"SMB0001", 0}, /* ACPI SMBUS virtual device */
{"", 0},
};
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 4bde16fb97d8..95600309ce42 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -12,35 +12,51 @@
#define pr_fmt(fmt) "ACPI: watchdog: " fmt
#include <linux/acpi.h>
-#include <linux/dmi.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include "internal.h"
-static const struct dmi_system_id acpi_watchdog_skip[] = {
- {
- /*
- * On Lenovo Z50-70 there are two issues with the WDAT
- * table. First some of the instructions use RTC SRAM
- * to store persistent information. This does not work well
- * with Linux RTC driver. Second, more important thing is
- * that the instructions do not actually reset the system.
- *
- * On this particular system iTCO_wdt seems to work just
- * fine so we prefer that over WDAT for now.
- *
- * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033.
- */
- .ident = "Lenovo Z50-70",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "20354"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Z50-70"),
- },
- },
- {}
-};
+#ifdef CONFIG_RTC_MC146818_LIB
+#include <linux/mc146818rtc.h>
+
+/*
+ * There are several systems where the WDAT table is accessing RTC SRAM to
+ * store persistent information. This does not work well with the Linux RTC
+ * driver so on those systems we skip WDAT driver and prefer iTCO_wdt
+ * instead.
+ *
+ * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033.
+ */
+static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat)
+{
+ const struct acpi_wdat_entry *entries;
+ int i;
+
+ entries = (struct acpi_wdat_entry *)(wdat + 1);
+ for (i = 0; i < wdat->entries; i++) {
+ const struct acpi_generic_address *gas;
+
+ gas = &entries[i].register_region;
+ if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ switch (gas->address) {
+ case RTC_PORT(0):
+ case RTC_PORT(1):
+ case RTC_PORT(2):
+ case RTC_PORT(3):
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+#else
+static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat)
+{
+ return false;
+}
+#endif
static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
{
@@ -50,9 +66,6 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
if (acpi_disabled)
return NULL;
- if (dmi_check_system(acpi_watchdog_skip))
- return NULL;
-
status = acpi_get_table(ACPI_SIG_WDAT, 0,
(struct acpi_table_header **)&wdat);
if (ACPI_FAILURE(status)) {
@@ -60,6 +73,11 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void)
return NULL;
}
+ if (acpi_watchdog_uses_rtc(wdat)) {
+ pr_info("Skipping WDAT on this system because it uses RTC SRAM\n");
+ return NULL;
+ }
+
return wdat;
}
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 1e2648e4c286..27b202c64c84 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1491,6 +1491,11 @@ static const struct attribute_group zram_disk_attr_group = {
.attrs = zram_disk_attrs,
};
+static const struct attribute_group *zram_disk_attr_groups[] = {
+ &zram_disk_attr_group,
+ NULL,
+};
+
/*
* Allocate and initialize new zram device. the function returns
* '>= 0' device_id upon success, and negative value otherwise.
@@ -1568,23 +1573,14 @@ static int zram_add(void)
if (ZRAM_LOGICAL_BLOCK_SIZE == PAGE_SIZE)
blk_queue_max_write_zeroes_sectors(zram->disk->queue, UINT_MAX);
+ disk_to_dev(zram->disk)->groups = zram_disk_attr_groups;
add_disk(zram->disk);
- ret = sysfs_create_group(&disk_to_dev(zram->disk)->kobj,
- &zram_disk_attr_group);
- if (ret < 0) {
- pr_err("Error creating sysfs group for device %d\n",
- device_id);
- goto out_free_disk;
- }
strlcpy(zram->compressor, default_compressor, sizeof(zram->compressor));
pr_info("Added device: %s\n", zram->disk->disk_name);
return device_id;
-out_free_disk:
- del_gendisk(zram->disk);
- put_disk(zram->disk);
out_free_queue:
blk_cleanup_queue(queue);
out_free_idr:
@@ -1612,16 +1608,6 @@ static int zram_remove(struct zram *zram)
zram->claim = true;
mutex_unlock(&bdev->bd_mutex);
- /*
- * Remove sysfs first, so no one will perform a disksize
- * store while we destroy the devices. This also helps during
- * hot_remove -- zram_reset_device() is the last holder of
- * ->init_lock, no later/concurrent disksize_store() or any
- * other sysfs handlers are possible.
- */
- sysfs_remove_group(&disk_to_dev(zram->disk)->kobj,
- &zram_disk_attr_group);
-
/* Make sure all the pending I/O are finished */
fsync_bdev(bdev);
zram_reset_device(zram);
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 20724abd38bd..7df6b5b1e7ee 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -210,6 +210,7 @@ static int of_fixed_factor_clk_remove(struct platform_device *pdev)
{
struct clk *clk = platform_get_drvdata(pdev);
+ of_clk_del_provider(pdev->dev.of_node);
clk_unregister_fixed_factor(clk);
return 0;
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c
index b5c46b3f8764..6d6475c32ee5 100644
--- a/drivers/clk/clk-fixed-rate.c
+++ b/drivers/clk/clk-fixed-rate.c
@@ -200,6 +200,7 @@ static int of_fixed_clk_remove(struct platform_device *pdev)
{
struct clk *clk = platform_get_drvdata(pdev);
+ of_clk_del_provider(pdev->dev.of_node);
clk_unregister_fixed_rate(clk);
return 0;
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 25601967d1cd..500a55415e90 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -280,6 +280,7 @@ static const struct samsung_clk_reg_dump exynos5420_set_clksrc[] = {
{ .offset = GATE_BUS_TOP, .value = 0xffffffff, },
{ .offset = GATE_BUS_DISP1, .value = 0xffffffff, },
{ .offset = GATE_IP_PERIC, .value = 0xffffffff, },
+ { .offset = GATE_IP_PERIS, .value = 0xffffffff, },
};
static int exynos5420_clk_suspend(void)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index d1191ebed072..ed01e3aae0e8 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -120,6 +120,9 @@ static const struct edid_quirk {
/* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
{ "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC },
+ /* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
+ { "BOE", 0x0771, EDID_QUIRK_FORCE_6BPC },
+
/* Belinea 10 15 55 */
{ "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
{ "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index f905c214fdd0..5a5b3535411f 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -160,13 +160,6 @@ static u32 decon_get_frame_count(struct decon_context *ctx, bool end)
return frm;
}
-static u32 decon_get_vblank_counter(struct exynos_drm_crtc *crtc)
-{
- struct decon_context *ctx = crtc->ctx;
-
- return decon_get_frame_count(ctx, false);
-}
-
static void decon_setup_trigger(struct decon_context *ctx)
{
if (!ctx->crtc->i80_mode && !(ctx->out_type & I80_HW_TRG))
@@ -532,7 +525,6 @@ static const struct exynos_drm_crtc_ops decon_crtc_ops = {
.disable = decon_disable,
.enable_vblank = decon_enable_vblank,
.disable_vblank = decon_disable_vblank,
- .get_vblank_counter = decon_get_vblank_counter,
.atomic_begin = decon_atomic_begin,
.update_plane = decon_update_plane,
.disable_plane = decon_disable_plane,
@@ -550,7 +542,6 @@ static int decon_bind(struct device *dev, struct device *master, void *data)
int ret;
ctx->drm_dev = drm_dev;
- drm_dev->max_vblank_count = 0xffffffff;
for (win = ctx->first_win; win < WINDOWS_NR; win++) {
int tmp = (win == ctx->first_win) ? 0 : win;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 6ce0821590df..4787560bf93e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -147,16 +147,6 @@ static void exynos_drm_crtc_disable_vblank(struct drm_crtc *crtc)
exynos_crtc->ops->disable_vblank(exynos_crtc);
}
-static u32 exynos_drm_crtc_get_vblank_counter(struct drm_crtc *crtc)
-{
- struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
-
- if (exynos_crtc->ops->get_vblank_counter)
- return exynos_crtc->ops->get_vblank_counter(exynos_crtc);
-
- return 0;
-}
-
static const struct drm_crtc_funcs exynos_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
@@ -166,7 +156,6 @@ static const struct drm_crtc_funcs exynos_crtc_funcs = {
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.enable_vblank = exynos_drm_crtc_enable_vblank,
.disable_vblank = exynos_drm_crtc_disable_vblank,
- .get_vblank_counter = exynos_drm_crtc_get_vblank_counter,
};
struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index f8bae4cb4823..d228b5148dbc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -133,7 +133,6 @@ struct exynos_drm_crtc_ops {
void (*disable)(struct exynos_drm_crtc *crtc);
int (*enable_vblank)(struct exynos_drm_crtc *crtc);
void (*disable_vblank)(struct exynos_drm_crtc *crtc);
- u32 (*get_vblank_counter)(struct exynos_drm_crtc *crtc);
enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
const struct drm_display_mode *mode);
int (*atomic_check)(struct exynos_drm_crtc *crtc,
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 6f819f144cb4..6f67d73b184e 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -12,6 +12,7 @@
#include <linux/atomic.h>
#include <linux/compat.h>
+#include <linux/cred.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/hid.h>
@@ -722,6 +723,17 @@ static ssize_t uhid_char_write(struct file *file, const char __user *buffer,
switch (uhid->input_buf.type) {
case UHID_CREATE:
+ /*
+ * 'struct uhid_create_req' contains a __user pointer which is
+ * copied from, so it's unsafe to allow this with elevated
+ * privileges (e.g. from a setuid binary) or via kernel_write().
+ */
+ if (file->f_cred != current_cred() || uaccess_kernel()) {
+ pr_err_once("UHID_CREATE from different security context by process %d (%s), this is not allowed.\n",
+ task_tgid_vnr(current), current->comm);
+ ret = -EACCES;
+ goto unlock;
+ }
ret = uhid_dev_create(uhid, &uhid->input_buf);
break;
case UHID_CREATE2:
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index 5ccdd0b52650..b38f4951c94e 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -126,7 +126,7 @@ static ssize_t show_label(struct device *dev, struct device_attribute *devattr,
return sprintf(buf, "%s\n", sdata->label);
}
-static int __init get_logical_cpu(int hwcpu)
+static int get_logical_cpu(int hwcpu)
{
int cpu;
@@ -137,9 +137,8 @@ static int __init get_logical_cpu(int hwcpu)
return -ENOENT;
}
-static void __init make_sensor_label(struct device_node *np,
- struct sensor_data *sdata,
- const char *label)
+static void make_sensor_label(struct device_node *np,
+ struct sensor_data *sdata, const char *label)
{
u32 id;
size_t n;
diff --git a/drivers/media/v4l2-core/v4l2-event.c b/drivers/media/v4l2-core/v4l2-event.c
index 568dd4affb33..011907eff660 100644
--- a/drivers/media/v4l2-core/v4l2-event.c
+++ b/drivers/media/v4l2-core/v4l2-event.c
@@ -193,6 +193,22 @@ int v4l2_event_pending(struct v4l2_fh *fh)
}
EXPORT_SYMBOL_GPL(v4l2_event_pending);
+static void __v4l2_event_unsubscribe(struct v4l2_subscribed_event *sev)
+{
+ struct v4l2_fh *fh = sev->fh;
+ unsigned int i;
+
+ lockdep_assert_held(&fh->subscribe_lock);
+ assert_spin_locked(&fh->vdev->fh_lock);
+
+ /* Remove any pending events for this subscription */
+ for (i = 0; i < sev->in_use; i++) {
+ list_del(&sev->events[sev_pos(sev, i)].list);
+ fh->navailable--;
+ }
+ list_del(&sev->list);
+}
+
int v4l2_event_subscribe(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub, unsigned elems,
const struct v4l2_subscribed_event_ops *ops)
@@ -225,27 +241,23 @@ int v4l2_event_subscribe(struct v4l2_fh *fh,
spin_lock_irqsave(&fh->vdev->fh_lock, flags);
found_ev = v4l2_event_subscribed(fh, sub->type, sub->id);
+ if (!found_ev)
+ list_add(&sev->list, &fh->subscribed);
spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
if (found_ev) {
/* Already listening */
kvfree(sev);
- goto out_unlock;
- }
-
- if (sev->ops && sev->ops->add) {
+ } else if (sev->ops && sev->ops->add) {
ret = sev->ops->add(sev, elems);
if (ret) {
+ spin_lock_irqsave(&fh->vdev->fh_lock, flags);
+ __v4l2_event_unsubscribe(sev);
+ spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
kvfree(sev);
- goto out_unlock;
}
}
- spin_lock_irqsave(&fh->vdev->fh_lock, flags);
- list_add(&sev->list, &fh->subscribed);
- spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
-
-out_unlock:
mutex_unlock(&fh->subscribe_lock);
return ret;
@@ -280,7 +292,6 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh,
{
struct v4l2_subscribed_event *sev;
unsigned long flags;
- int i;
if (sub->type == V4L2_EVENT_ALL) {
v4l2_event_unsubscribe_all(fh);
@@ -292,14 +303,8 @@ int v4l2_event_unsubscribe(struct v4l2_fh *fh,
spin_lock_irqsave(&fh->vdev->fh_lock, flags);
sev = v4l2_event_subscribed(fh, sub->type, sub->id);
- if (sev != NULL) {
- /* Remove any pending events for this subscription */
- for (i = 0; i < sev->in_use; i++) {
- list_del(&sev->events[sev_pos(sev, i)].list);
- fh->navailable--;
- }
- list_del(&sev->list);
- }
+ if (sev != NULL)
+ __v4l2_event_unsubscribe(sev);
spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index b2a0340f277e..d8e3cc2dc747 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -132,7 +132,7 @@ static const struct of_device_id atmel_ssc_dt_ids[] = {
MODULE_DEVICE_TABLE(of, atmel_ssc_dt_ids);
#endif
-static inline const struct atmel_ssc_platform_data * __init
+static inline const struct atmel_ssc_platform_data *
atmel_ssc_get_driver_data(struct platform_device *pdev)
{
if (pdev->dev.of_node) {
diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c
index 313da3150262..1540a7785e14 100644
--- a/drivers/misc/sgi-gru/grukdump.c
+++ b/drivers/misc/sgi-gru/grukdump.c
@@ -27,6 +27,9 @@
#include <linux/delay.h>
#include <linux/bitops.h>
#include <asm/uv/uv_hub.h>
+
+#include <linux/nospec.h>
+
#include "gru.h"
#include "grutables.h"
#include "gruhandles.h"
@@ -196,6 +199,7 @@ int gru_dump_chiplet_request(unsigned long arg)
/* Currently, only dump by gid is implemented */
if (req.gid >= gru_max_gids)
return -EINVAL;
+ req.gid = array_index_nospec(req.gid, gru_max_gids);
gru = GID_TO_GRU(req.gid);
ubuf = req.buf;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 04dbf64fb1cb..176c99b8251d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9688,6 +9688,8 @@ static int i40e_config_netdev(struct i40e_vsi *vsi)
NETIF_F_GSO_GRE |
NETIF_F_GSO_GRE_CSUM |
NETIF_F_GSO_PARTIAL |
+ NETIF_F_GSO_IPXIP4 |
+ NETIF_F_GSO_IPXIP6 |
NETIF_F_GSO_UDP_TUNNEL |
NETIF_F_GSO_UDP_TUNNEL_CSUM |
NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 112d24c6c9ce..4904a63b83ef 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -760,8 +760,10 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
adapter->default_up, vf);
- if (vfinfo->spoofchk_enabled)
+ if (vfinfo->spoofchk_enabled) {
hw->mac.ops.set_vlan_anti_spoofing(hw, true, vf);
+ hw->mac.ops.set_mac_anti_spoofing(hw, true, vf);
+ }
}
/* reset multicast table array for vf */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
index ab4ad8a1e2a5..01a213d4ee9c 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -167,6 +167,9 @@ struct qed_spq_entry {
enum spq_mode comp_mode;
struct qed_spq_comp_cb comp_cb;
struct qed_spq_comp_done comp_done; /* SPQ_MODE_EBLOCK */
+
+ /* Posted entry for unlimited list entry in EBLOCK mode */
+ struct qed_spq_entry *post_ent;
};
struct qed_eq {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
index d7c5965328be..b26578464469 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
@@ -80,7 +80,7 @@ int qed_sp_init_request(struct qed_hwfn *p_hwfn,
case QED_SPQ_MODE_BLOCK:
if (!p_data->p_comp_data)
- return -EINVAL;
+ goto err;
p_ent->comp_cb.cookie = p_data->p_comp_data->cookie;
break;
@@ -95,7 +95,7 @@ int qed_sp_init_request(struct qed_hwfn *p_hwfn,
default:
DP_NOTICE(p_hwfn, "Unknown SPQE completion mode %d\n",
p_ent->comp_mode);
- return -EINVAL;
+ goto err;
}
DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
@@ -109,6 +109,18 @@ int qed_sp_init_request(struct qed_hwfn *p_hwfn,
memset(&p_ent->ramrod, 0, sizeof(p_ent->ramrod));
return 0;
+
+err:
+ /* qed_spq_get_entry() can either get an entry from the free_pool,
+ * or, if no entries are left, allocate a new entry and add it to
+ * the unlimited_pending list.
+ */
+ if (p_ent->queue == &p_hwfn->p_spq->unlimited_pending)
+ kfree(p_ent);
+ else
+ qed_spq_return_entry(p_hwfn, p_ent);
+
+ return -EINVAL;
}
static enum tunnel_clss qed_tunn_clss_to_fw_clss(u8 type)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_spq.c b/drivers/net/ethernet/qlogic/qed/qed_spq.c
index be48d9abd001..467755b6dd0b 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_spq.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_spq.c
@@ -144,6 +144,7 @@ static int qed_spq_block(struct qed_hwfn *p_hwfn,
DP_INFO(p_hwfn, "Ramrod is stuck, requesting MCP drain\n");
rc = qed_mcp_drain(p_hwfn, p_ptt);
+ qed_ptt_release(p_hwfn, p_ptt);
if (rc) {
DP_NOTICE(p_hwfn, "MCP drain failed\n");
goto err;
@@ -152,18 +153,15 @@ static int qed_spq_block(struct qed_hwfn *p_hwfn,
/* Retry after drain */
rc = __qed_spq_block(p_hwfn, p_ent, p_fw_ret, true);
if (!rc)
- goto out;
+ return 0;
comp_done = (struct qed_spq_comp_done *)p_ent->comp_cb.cookie;
- if (comp_done->done == 1)
+ if (comp_done->done == 1) {
if (p_fw_ret)
*p_fw_ret = comp_done->fw_return_code;
-out:
- qed_ptt_release(p_hwfn, p_ptt);
- return 0;
-
+ return 0;
+ }
err:
- qed_ptt_release(p_hwfn, p_ptt);
DP_NOTICE(p_hwfn,
"Ramrod is stuck [CID %08x cmd %02x protocol %02x echo %04x]\n",
le32_to_cpu(p_ent->elem.hdr.cid),
@@ -687,6 +685,8 @@ static int qed_spq_add_entry(struct qed_hwfn *p_hwfn,
/* EBLOCK responsible to free the allocated p_ent */
if (p_ent->comp_mode != QED_SPQ_MODE_EBLOCK)
kfree(p_ent);
+ else
+ p_ent->post_ent = p_en2;
p_ent = p_en2;
}
@@ -770,6 +770,25 @@ static int qed_spq_pend_post(struct qed_hwfn *p_hwfn)
SPQ_HIGH_PRI_RESERVE_DEFAULT);
}
+/* Avoid overriding of SPQ entries when getting out-of-order completions, by
+ * marking the completions in a bitmap and increasing the chain consumer only
+ * for the first successive completed entries.
+ */
+static void qed_spq_comp_bmap_update(struct qed_hwfn *p_hwfn, __le16 echo)
+{
+ u16 pos = le16_to_cpu(echo) % SPQ_RING_SIZE;
+ struct qed_spq *p_spq = p_hwfn->p_spq;
+
+ __set_bit(pos, p_spq->p_comp_bitmap);
+ while (test_bit(p_spq->comp_bitmap_idx,
+ p_spq->p_comp_bitmap)) {
+ __clear_bit(p_spq->comp_bitmap_idx,
+ p_spq->p_comp_bitmap);
+ p_spq->comp_bitmap_idx++;
+ qed_chain_return_produced(&p_spq->chain);
+ }
+}
+
int qed_spq_post(struct qed_hwfn *p_hwfn,
struct qed_spq_entry *p_ent, u8 *fw_return_code)
{
@@ -821,11 +840,12 @@ int qed_spq_post(struct qed_hwfn *p_hwfn,
p_ent->queue == &p_spq->unlimited_pending);
if (p_ent->queue == &p_spq->unlimited_pending) {
- /* This is an allocated p_ent which does not need to
- * return to pool.
- */
+ struct qed_spq_entry *p_post_ent = p_ent->post_ent;
+
kfree(p_ent);
- return rc;
+
+ /* Return the entry which was actually posted */
+ p_ent = p_post_ent;
}
if (rc)
@@ -839,7 +859,7 @@ int qed_spq_post(struct qed_hwfn *p_hwfn,
spq_post_fail2:
spin_lock_bh(&p_spq->lock);
list_del(&p_ent->list);
- qed_chain_return_produced(&p_spq->chain);
+ qed_spq_comp_bmap_update(p_hwfn, p_ent->elem.hdr.echo);
spq_post_fail:
/* return to the free pool */
@@ -871,25 +891,8 @@ int qed_spq_completion(struct qed_hwfn *p_hwfn,
spin_lock_bh(&p_spq->lock);
list_for_each_entry_safe(p_ent, tmp, &p_spq->completion_pending, list) {
if (p_ent->elem.hdr.echo == echo) {
- u16 pos = le16_to_cpu(echo) % SPQ_RING_SIZE;
-
list_del(&p_ent->list);
-
- /* Avoid overriding of SPQ entries when getting
- * out-of-order completions, by marking the completions
- * in a bitmap and increasing the chain consumer only
- * for the first successive completed entries.
- */
- __set_bit(pos, p_spq->p_comp_bitmap);
-
- while (test_bit(p_spq->comp_bitmap_idx,
- p_spq->p_comp_bitmap)) {
- __clear_bit(p_spq->comp_bitmap_idx,
- p_spq->p_comp_bitmap);
- p_spq->comp_bitmap_idx++;
- qed_chain_return_produced(&p_spq->chain);
- }
-
+ qed_spq_comp_bmap_update(p_hwfn, echo);
p_spq->comp_count++;
found = p_ent;
break;
@@ -928,11 +931,9 @@ int qed_spq_completion(struct qed_hwfn *p_hwfn,
QED_MSG_SPQ,
"Got a completion without a callback function\n");
- if ((found->comp_mode != QED_SPQ_MODE_EBLOCK) ||
- (found->queue == &p_spq->unlimited_pending))
+ if (found->comp_mode != QED_SPQ_MODE_EBLOCK)
/* EBLOCK is responsible for returning its own entry into the
- * free list, unless it originally added the entry into the
- * unlimited pending list.
+ * free list.
*/
qed_spq_return_entry(p_hwfn, found);
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 627fec210e2f..8e2a19616bc9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -340,7 +340,8 @@ struct dma_features {
/* GMAC TX FIFO is 8K, Rx FIFO is 16K */
#define BUF_SIZE_16KiB 16384
-#define BUF_SIZE_8KiB 8192
+/* RX Buffer size must be < 8191 and multiple of 4/8/16 bytes */
+#define BUF_SIZE_8KiB 8188
#define BUF_SIZE_4KiB 4096
#define BUF_SIZE_2KiB 2048
diff --git a/drivers/net/ethernet/stmicro/stmmac/descs_com.h b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
index ca9d7e48034c..40d6356a7e73 100644
--- a/drivers/net/ethernet/stmicro/stmmac/descs_com.h
+++ b/drivers/net/ethernet/stmicro/stmmac/descs_com.h
@@ -31,7 +31,7 @@
/* Enhanced descriptors */
static inline void ehn_desc_rx_set_on_ring(struct dma_desc *p, int end)
{
- p->des1 |= cpu_to_le32(((BUF_SIZE_8KiB - 1)
+ p->des1 |= cpu_to_le32((BUF_SIZE_8KiB
<< ERDES1_BUFFER2_SIZE_SHIFT)
& ERDES1_BUFFER2_SIZE_MASK);
diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
index 2a828a312814..acd65a4f94d4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
@@ -262,7 +262,7 @@ static void enh_desc_init_rx_desc(struct dma_desc *p, int disable_rx_ic,
int mode, int end)
{
p->des0 |= cpu_to_le32(RDES0_OWN);
- p->des1 |= cpu_to_le32((BUF_SIZE_8KiB - 1) & ERDES1_BUFFER1_SIZE_MASK);
+ p->des1 |= cpu_to_le32(BUF_SIZE_8KiB & ERDES1_BUFFER1_SIZE_MASK);
if (mode == STMMAC_CHAIN_MODE)
ehn_desc_rx_set_on_chain(p);
diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
index 28e4b5d50ce6..1af7b078b94d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -143,7 +143,7 @@ static void stmmac_clean_desc3(void *priv_ptr, struct dma_desc *p)
static int stmmac_set_16kib_bfsize(int mtu)
{
int ret = 0;
- if (unlikely(mtu >= BUF_SIZE_8KiB))
+ if (unlikely(mtu > BUF_SIZE_8KiB))
ret = BUF_SIZE_16KiB;
return ret;
}
diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index ea22591ee66f..53dfe67807e3 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -233,6 +233,7 @@ static const struct bios_settings bios_tbl[] = {
{"Gateway", "LT31", "v1.3201", 0x55, 0x58, {0x9e, 0x00}, 0},
{"Gateway", "LT31", "v1.3302", 0x55, 0x58, {0x9e, 0x00}, 0},
{"Gateway", "LT31", "v1.3303t", 0x55, 0x58, {0x9e, 0x00}, 0},
+ {"Gateway", "LT31", "v1.3307", 0x55, 0x58, {0x9e, 0x00}, 0},
/* Packard Bell */
{"Packard Bell", "DOA150", "v0.3104", 0x55, 0x58, {0x21, 0x00}, 0},
{"Packard Bell", "DOA150", "v0.3105", 0x55, 0x58, {0x20, 0x00}, 0},
diff --git a/drivers/platform/x86/intel_telemetry_debugfs.c b/drivers/platform/x86/intel_telemetry_debugfs.c
index d4fc42b4cbeb..401bdc7a9d94 100644
--- a/drivers/platform/x86/intel_telemetry_debugfs.c
+++ b/drivers/platform/x86/intel_telemetry_debugfs.c
@@ -968,12 +968,16 @@ static int __init telemetry_debugfs_init(void)
debugfs_conf = (struct telemetry_debugfs_conf *)id->driver_data;
err = telemetry_pltconfig_valid();
- if (err < 0)
+ if (err < 0) {
+ pr_info("Invalid pltconfig, ensure IPC1 device is enabled in BIOS\n");
return -ENODEV;
+ }
err = telemetry_debugfs_check_evts();
- if (err < 0)
+ if (err < 0) {
+ pr_info("telemetry_debugfs_check_evts failed\n");
return -EINVAL;
+ }
register_pm_notifier(&pm_notifier);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index cd73172bff47..a19f2dc69e8a 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -358,9 +358,6 @@ static void qeth_l3_clear_ip_htable(struct qeth_card *card, int recover)
QETH_CARD_TEXT(card, 4, "clearip");
- if (recover && card->options.sniffer)
- return;
-
spin_lock_bh(&card->ip_lock);
hash_for_each_safe(card->ip_htable, i, tmp, addr, hnode) {
@@ -818,6 +815,8 @@ static int qeth_l3_register_addr_entry(struct qeth_card *card,
int rc = 0;
int cnt = 3;
+ if (card->options.sniffer)
+ return 0;
if (addr->proto == QETH_PROT_IPV4) {
QETH_CARD_TEXT(card, 2, "setaddr4");
@@ -853,6 +852,9 @@ static int qeth_l3_deregister_addr_entry(struct qeth_card *card,
{
int rc = 0;
+ if (card->options.sniffer)
+ return 0;
+
if (addr->proto == QETH_PROT_IPV4) {
QETH_CARD_TEXT(card, 2, "deladdr4");
QETH_CARD_HEX(card, 3, &addr->u.a4.addr, sizeof(int));
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 0a730136646d..654579bc1e54 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -850,6 +850,8 @@ int __uio_register_device(struct module *owner,
if (ret)
goto err_uio_dev_add_attributes;
+ info->uio_dev = idev;
+
if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
/*
* Note that we deliberately don't use devm_request_irq
@@ -861,11 +863,12 @@ int __uio_register_device(struct module *owner,
*/
ret = request_irq(info->irq, uio_interrupt,
info->irq_flags, info->name, idev);
- if (ret)
+ if (ret) {
+ info->uio_dev = NULL;
goto err_request_irq;
+ }
}
- info->uio_dev = idev;
return 0;
err_request_irq:
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index e41d00bc7e97..5a8ef83a5c5c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1724,6 +1724,9 @@ static const struct usb_device_id acm_ids[] = {
{ USB_DEVICE(0x0572, 0x1328), /* Shiro / Aztech USB MODEM UM-3100 */
.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
},
+ { USB_DEVICE(0x0572, 0x1349), /* Hiro (Conexant) USB MODEM H50228 */
+ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */
+ },
{ USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
.driver_info = QUIRK_CONTROL_LINE_STATE, },
{ USB_DEVICE(0x2184, 0x001c) }, /* GW Instek AFG-2225 */
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 37a5e07b3488..1e8f68960014 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -243,6 +243,9 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT |
USB_QUIRK_DELAY_CTRL_MSG },
+ /* Corsair K70 LUX RGB */
+ { USB_DEVICE(0x1b1c, 0x1b33), .driver_info = USB_QUIRK_DELAY_INIT },
+
/* Corsair K70 LUX */
{ USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
@@ -263,6 +266,11 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x2040, 0x7200), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
+ /* Raydium Touchscreen */
+ { USB_DEVICE(0x2386, 0x3114), .driver_info = USB_QUIRK_NO_LPM },
+
+ { USB_DEVICE(0x2386, 0x3119), .driver_info = USB_QUIRK_NO_LPM },
+
/* DJI CineSSD */
{ USB_DEVICE(0x2ca3, 0x0031), .driver_info = USB_QUIRK_NO_LPM },
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 8efdc500e790..288fe3e69d52 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -63,6 +63,7 @@ static const struct usb_device_id appledisplay_table[] = {
{ APPLEDISPLAY_DEVICE(0x9219) },
{ APPLEDISPLAY_DEVICE(0x921c) },
{ APPLEDISPLAY_DEVICE(0x921d) },
+ { APPLEDISPLAY_DEVICE(0x9222) },
{ APPLEDISPLAY_DEVICE(0x9236) },
/* Terminating entry */
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 44a7b2dea688..c5fd5abf7206 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -933,8 +933,8 @@ static int cifs_clone_file_range(struct file *src_file, loff_t off,
struct inode *src_inode = file_inode(src_file);
struct inode *target_inode = file_inode(dst_file);
struct cifsFileInfo *smb_file_src = src_file->private_data;
- struct cifsFileInfo *smb_file_target = dst_file->private_data;
- struct cifs_tcon *target_tcon = tlink_tcon(smb_file_target->tlink);
+ struct cifsFileInfo *smb_file_target;
+ struct cifs_tcon *target_tcon;
unsigned int xid;
int rc;
@@ -948,6 +948,9 @@ static int cifs_clone_file_range(struct file *src_file, loff_t off,
goto out;
}
+ smb_file_target = dst_file->private_data;
+ target_tcon = tlink_tcon(smb_file_target->tlink);
+
/*
* Note: cifs case is easier than btrfs since server responsible for
* checks for proper open modes and file type and if it wants
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 4e5b05263e4a..3372eedaa94d 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -441,6 +441,7 @@ move_smb2_ea_to_cifs(char *dst, size_t dst_size,
int rc = 0;
unsigned int ea_name_len = ea_name ? strlen(ea_name) : 0;
char *name, *value;
+ size_t buf_size = dst_size;
size_t name_len, value_len, user_name_len;
while (src_size > 0) {
@@ -476,9 +477,10 @@ move_smb2_ea_to_cifs(char *dst, size_t dst_size,
/* 'user.' plus a terminating null */
user_name_len = 5 + 1 + name_len;
- rc += user_name_len;
-
- if (dst_size >= user_name_len) {
+ if (buf_size == 0) {
+ /* skip copy - calc size only */
+ rc += user_name_len;
+ } else if (dst_size >= user_name_len) {
dst_size -= user_name_len;
memcpy(dst, "user.", 5);
dst += 5;
@@ -486,8 +488,7 @@ move_smb2_ea_to_cifs(char *dst, size_t dst_size,
dst += name_len;
*dst = 0;
++dst;
- } else if (dst_size == 0) {
- /* skip copy - calc size only */
+ rc += user_name_len;
} else {
/* stop before overrun buffer */
rc = -ERANGE;
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 819624cfc8da..c9ec652e2fcd 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -100,6 +100,7 @@ static int parse_options(char *options, struct exofs_mountopt *opts)
token = match_token(p, tokens, args);
switch (token) {
case Opt_name:
+ kfree(opts->dev_name);
opts->dev_name = match_strdup(&args[0]);
if (unlikely(!opts->dev_name)) {
EXOFS_ERR("Error allocating dev_name");
@@ -863,8 +864,10 @@ static struct dentry *exofs_mount(struct file_system_type *type,
int ret;
ret = parse_options(data, &opts);
- if (ret)
+ if (ret) {
+ kfree(opts.dev_name);
return ERR_PTR(ret);
+ }
if (!opts.dev_name)
opts.dev_name = dev_name;
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 9a8772465a90..da25c49203cc 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -425,6 +425,10 @@ static int hfs_brec_update_parent(struct hfs_find_data *fd)
if (new_node) {
__be32 cnid;
+ if (!new_node->parent) {
+ hfs_btree_inc_height(tree);
+ new_node->parent = tree->root;
+ }
fd->bnode = hfs_bnode_find(tree, new_node->parent);
/* create index key and entry */
hfs_bnode_read_key(new_node, fd->search_key, 14);
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 808f4d8c859c..d3f36982f685 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -428,6 +428,10 @@ static int hfs_brec_update_parent(struct hfs_find_data *fd)
if (new_node) {
__be32 cnid;
+ if (!new_node->parent) {
+ hfs_btree_inc_height(tree);
+ new_node->parent = tree->root;
+ }
fd->bnode = hfs_bnode_find(tree, new_node->parent);
/* create index key and entry */
hfs_bnode_read_key(new_node, fd->search_key, 14);
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 505f87a8c724..83423192588c 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -185,6 +185,7 @@ struct reiserfs_dentry_buf {
struct dir_context ctx;
struct dentry *xadir;
int count;
+ int err;
struct dentry *dentries[8];
};
@@ -207,6 +208,7 @@ fill_with_dentries(struct dir_context *ctx, const char *name, int namelen,
dentry = lookup_one_len(name, dbuf->xadir, namelen);
if (IS_ERR(dentry)) {
+ dbuf->err = PTR_ERR(dentry);
return PTR_ERR(dentry);
} else if (d_really_is_negative(dentry)) {
/* A directory entry exists, but no file? */
@@ -215,6 +217,7 @@ fill_with_dentries(struct dir_context *ctx, const char *name, int namelen,
"not found for file %pd.\n",
dentry, dbuf->xadir);
dput(dentry);
+ dbuf->err = -EIO;
return -EIO;
}
@@ -262,6 +265,10 @@ static int reiserfs_for_each_xattr(struct inode *inode,
err = reiserfs_readdir_inode(d_inode(dir), &buf.ctx);
if (err)
break;
+ if (buf.err) {
+ err = buf.err;
+ break;
+ }
if (!buf.count)
break;
for (i = 0; !err && i < buf.count && buf.dentries[i]; i++) {
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 8e42253e5d4d..91a533bd3eb1 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -312,7 +312,7 @@ enum {
extern ip_set_id_t ip_set_get_byname(struct net *net,
const char *name, struct ip_set **set);
extern void ip_set_put_byindex(struct net *net, ip_set_id_t index);
-extern const char *ip_set_name_byindex(struct net *net, ip_set_id_t index);
+extern void ip_set_name_byindex(struct net *net, ip_set_id_t index, char *name);
extern ip_set_id_t ip_set_nfnl_get_byindex(struct net *net, ip_set_id_t index);
extern void ip_set_nfnl_put(struct net *net, ip_set_id_t index);
diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h
index 8e2bab1e8e90..70877f8de7e9 100644
--- a/include/linux/netfilter/ipset/ip_set_comment.h
+++ b/include/linux/netfilter/ipset/ip_set_comment.h
@@ -43,11 +43,11 @@ ip_set_init_comment(struct ip_set *set, struct ip_set_comment *comment,
rcu_assign_pointer(comment->c, c);
}
-/* Used only when dumping a set, protected by rcu_read_lock_bh() */
+/* Used only when dumping a set, protected by rcu_read_lock() */
static inline int
ip_set_put_comment(struct sk_buff *skb, const struct ip_set_comment *comment)
{
- struct ip_set_comment_rcu *c = rcu_dereference_bh(comment->c);
+ struct ip_set_comment_rcu *c = rcu_dereference(comment->c);
if (!c)
return 0;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4e89ed8a0fb2..3bc664662081 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5733,14 +5733,17 @@ void __init sched_init_smp(void)
/*
* There's no userspace yet to cause hotplug operations; hence all the
* CPU masks are stable and all blatant races in the below code cannot
- * happen.
+ * happen. The hotplug lock is nevertheless taken to satisfy lockdep,
+ * but there won't be any contention on it.
*/
+ cpus_read_lock();
mutex_lock(&sched_domains_mutex);
sched_init_domains(cpu_active_mask);
cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map);
if (cpumask_empty(non_isolated_cpus))
cpumask_set_cpu(smp_processor_id(), non_isolated_cpus);
mutex_unlock(&sched_domains_mutex);
+ cpus_read_unlock();
/* Move init over to a non-isolated CPU */
if (set_cpus_allowed_ptr(current, non_isolated_cpus) < 0)
diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index be1010bdc435..565a77220fae 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -27,7 +27,7 @@ ifeq ($(ARCH),arm)
CFLAGS += -I../../../arch/arm/include -mfpu=neon
HAS_NEON = yes
endif
-ifeq ($(ARCH),arm64)
+ifeq ($(ARCH),aarch64)
CFLAGS += -I../../../arch/arm64/include
HAS_NEON = yes
endif
@@ -41,7 +41,7 @@ ifeq ($(IS_X86),yes)
gcc -c -x assembler - >&/dev/null && \
rm ./-.o && echo -DCONFIG_AS_AVX512=1)
else ifeq ($(HAS_NEON),yes)
- OBJS += neon.o neon1.o neon2.o neon4.o neon8.o
+ OBJS += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
CFLAGS += -DCONFIG_KERNEL_MODE_NEON=1
else
HAS_ALTIVEC := $(shell printf '\#include <altivec.h>\nvector int a;\n' |\
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 5c4e85296cf6..5281da82371a 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -594,9 +594,15 @@ static int ceph_tcp_sendpage(struct socket *sock, struct page *page,
struct bio_vec bvec;
int ret;
- /* sendpage cannot properly handle pages with page_count == 0,
- * we need to fallback to sendmsg if that's the case */
- if (page_count(page) >= 1)
+ /*
+ * sendpage cannot properly handle pages with page_count == 0,
+ * we need to fall back to sendmsg if that's the case.
+ *
+ * Same goes for slab pages: skb_can_coalesce() allows
+ * coalescing neighboring slab objects into a single frag which
+ * triggers one of hardened usercopy checks.
+ */
+ if (page_count(page) >= 1 && !PageSlab(page))
return __ceph_tcp_sendpage(sock, page, offset, size, more);
bvec.bv_page = page;
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 9d2ce1459cec..a3f1dc7cf538 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -668,21 +668,20 @@ ip_set_put_byindex(struct net *net, ip_set_id_t index)
EXPORT_SYMBOL_GPL(ip_set_put_byindex);
/* Get the name of a set behind a set index.
- * We assume the set is referenced, so it does exist and
- * can't be destroyed. The set cannot be renamed due to
- * the referencing either.
- *
+ * Set itself is protected by RCU, but its name isn't: to protect against
+ * renaming, grab ip_set_ref_lock as reader (see ip_set_rename()) and copy the
+ * name.
*/
-const char *
-ip_set_name_byindex(struct net *net, ip_set_id_t index)
+void
+ip_set_name_byindex(struct net *net, ip_set_id_t index, char *name)
{
- const struct ip_set *set = ip_set_rcu_get(net, index);
+ struct ip_set *set = ip_set_rcu_get(net, index);
BUG_ON(!set);
- BUG_ON(set->ref == 0);
- /* Referenced, so it's safe */
- return set->name;
+ read_lock_bh(&ip_set_ref_lock);
+ strncpy(name, set->name, IPSET_MAXNAMELEN);
+ read_unlock_bh(&ip_set_ref_lock);
}
EXPORT_SYMBOL_GPL(ip_set_name_byindex);
@@ -1128,7 +1127,7 @@ static int ip_set_rename(struct net *net, struct sock *ctnl,
if (!set)
return -ENOENT;
- read_lock_bh(&ip_set_ref_lock);
+ write_lock_bh(&ip_set_ref_lock);
if (set->ref != 0) {
ret = -IPSET_ERR_REFERENCED;
goto out;
@@ -1145,7 +1144,7 @@ static int ip_set_rename(struct net *net, struct sock *ctnl,
strncpy(set->name, name2, IPSET_MAXNAMELEN);
out:
- read_unlock_bh(&ip_set_ref_lock);
+ write_unlock_bh(&ip_set_ref_lock);
return ret;
}
diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c
index 8602f2595a1a..0e6e40c6f652 100644
--- a/net/netfilter/ipset/ip_set_hash_netportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netportnet.c
@@ -213,13 +213,13 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_CIDR]) {
e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
- if (!e.cidr[0] || e.cidr[0] > HOST_MASK)
+ if (e.cidr[0] > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
if (tb[IPSET_ATTR_CIDR2]) {
e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
- if (!e.cidr[1] || e.cidr[1] > HOST_MASK)
+ if (e.cidr[1] > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
@@ -492,13 +492,13 @@ hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
if (tb[IPSET_ATTR_CIDR]) {
e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
- if (!e.cidr[0] || e.cidr[0] > HOST_MASK)
+ if (e.cidr[0] > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
if (tb[IPSET_ATTR_CIDR2]) {
e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
- if (!e.cidr[1] || e.cidr[1] > HOST_MASK)
+ if (e.cidr[1] > HOST_MASK)
return -IPSET_ERR_INVALID_CIDR;
}
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 178d4eba013b..75d52aed6fdb 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -156,9 +156,7 @@ __list_set_del_rcu(struct rcu_head * rcu)
{
struct set_elem *e = container_of(rcu, struct set_elem, rcu);
struct ip_set *set = e->set;
- struct list_set *map = set->data;
- ip_set_put_byindex(map->net, e->id);
ip_set_ext_destroy(set, e);
kfree(e);
}
@@ -166,15 +164,21 @@ __list_set_del_rcu(struct rcu_head * rcu)
static inline void
list_set_del(struct ip_set *set, struct set_elem *e)
{
+ struct list_set *map = set->data;
+
set->elements--;
list_del_rcu(&e->list);
+ ip_set_put_byindex(map->net, e->id);
call_rcu(&e->rcu, __list_set_del_rcu);
}
static inline void
-list_set_replace(struct set_elem *e, struct set_elem *old)
+list_set_replace(struct ip_set *set, struct set_elem *e, struct set_elem *old)
{
+ struct list_set *map = set->data;
+
list_replace_rcu(&old->list, &e->list);
+ ip_set_put_byindex(map->net, old->id);
call_rcu(&old->rcu, __list_set_del_rcu);
}
@@ -306,7 +310,7 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
INIT_LIST_HEAD(&e->list);
list_set_init_extensions(set, ext, e);
if (n)
- list_set_replace(e, n);
+ list_set_replace(set, e, n);
else if (next)
list_add_tail_rcu(&e->list, &next->list);
else if (prev)
@@ -497,6 +501,7 @@ list_set_list(const struct ip_set *set,
const struct list_set *map = set->data;
struct nlattr *atd, *nested;
u32 i = 0, first = cb->args[IPSET_CB_ARG0];
+ char name[IPSET_MAXNAMELEN];
struct set_elem *e;
int ret = 0;
@@ -515,8 +520,8 @@ list_set_list(const struct ip_set *set,
nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
if (!nested)
goto nla_put_failure;
- if (nla_put_string(skb, IPSET_ATTR_NAME,
- ip_set_name_byindex(map->net, e->id)))
+ ip_set_name_byindex(map->net, e->id, name);
+ if (nla_put_string(skb, IPSET_ATTR_NAME, name))
goto nla_put_failure;
if (ip_set_put_extensions(skb, set, e, true))
goto nla_put_failure;
diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index 1141f08810b6..3fef8c2e545d 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -116,6 +116,22 @@ static void idletimer_tg_expired(unsigned long data)
schedule_work(&timer->work);
}
+static int idletimer_check_sysfs_name(const char *name, unsigned int size)
+{
+ int ret;
+
+ ret = xt_check_proc_name(name, size);
+ if (ret < 0)
+ return ret;
+
+ if (!strcmp(name, "power") ||
+ !strcmp(name, "subsystem") ||
+ !strcmp(name, "uevent"))
+ return -EINVAL;
+
+ return 0;
+}
+
static int idletimer_tg_create(struct idletimer_tg_info *info)
{
int ret;
@@ -126,6 +142,10 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
goto out;
}
+ ret = idletimer_check_sysfs_name(info->label, sizeof(info->label));
+ if (ret < 0)
+ goto out_free_timer;
+
sysfs_attr_init(&info->timer->attr.attr);
info->timer->attr.attr.name = kstrdup(info->label, GFP_KERNEL);
if (!info->timer->attr.attr.name) {
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 13695ba8fc54..4f382805eb9c 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -512,7 +512,7 @@ EXPORT_SYMBOL_GPL(xdr_commit_encode);
static __be32 *xdr_get_next_encode_buffer(struct xdr_stream *xdr,
size_t nbytes)
{
- static __be32 *p;
+ __be32 *p;
int space_left;
int frag1bytes, frag2bytes;
diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 08ca26bcca77..451654372a76 100644
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -90,10 +90,12 @@ const char *aa_splitn_fqname(const char *fqname, size_t n, const char **ns_name,
const char *end = fqname + n;
const char *name = skipn_spaces(fqname, n);
- if (!name)
- return NULL;
*ns_name = NULL;
*ns_len = 0;
+
+ if (!name)
+ return NULL;
+
if (name[0] == ':') {
char *split = strnchr(&name[1], end - &name[1], ':');
*ns_name = skipn_spaces(&name[1], end - &name[1]);
diff --git a/tools/perf/jvmti/jvmti_agent.c b/tools/perf/jvmti/jvmti_agent.c
index c1d20d951434..4ad9948fe594 100644
--- a/tools/perf/jvmti/jvmti_agent.c
+++ b/tools/perf/jvmti/jvmti_agent.c
@@ -125,7 +125,7 @@ perf_get_timestamp(void)
}
static int
-debug_cache_init(void)
+create_jit_cache_dir(void)
{
char str[32];
char *base, *p;
@@ -144,8 +144,13 @@ debug_cache_init(void)
strftime(str, sizeof(str), JIT_LANG"-jit-%Y%m%d", &tm);
- snprintf(jit_path, PATH_MAX - 1, "%s/.debug/", base);
-
+ ret = snprintf(jit_path, PATH_MAX, "%s/.debug/", base);
+ if (ret >= PATH_MAX) {
+ warnx("jvmti: cannot generate jit cache dir because %s/.debug/"
+ " is too long, please check the cwd, JITDUMPDIR, and"
+ " HOME variables", base);
+ return -1;
+ }
ret = mkdir(jit_path, 0755);
if (ret == -1) {
if (errno != EEXIST) {
@@ -154,20 +159,32 @@ debug_cache_init(void)
}
}
- snprintf(jit_path, PATH_MAX - 1, "%s/.debug/jit", base);
+ ret = snprintf(jit_path, PATH_MAX, "%s/.debug/jit", base);
+ if (ret >= PATH_MAX) {
+ warnx("jvmti: cannot generate jit cache dir because"
+ " %s/.debug/jit is too long, please check the cwd,"
+ " JITDUMPDIR, and HOME variables", base);
+ return -1;
+ }
ret = mkdir(jit_path, 0755);
if (ret == -1) {
if (errno != EEXIST) {
- warn("cannot create jit cache dir %s", jit_path);
+ warn("jvmti: cannot create jit cache dir %s", jit_path);
return -1;
}
}
- snprintf(jit_path, PATH_MAX - 1, "%s/.debug/jit/%s.XXXXXXXX", base, str);
-
+ ret = snprintf(jit_path, PATH_MAX, "%s/.debug/jit/%s.XXXXXXXX", base, str);
+ if (ret >= PATH_MAX) {
+ warnx("jvmti: cannot generate jit cache dir because"
+ " %s/.debug/jit/%s.XXXXXXXX is too long, please check"
+ " the cwd, JITDUMPDIR, and HOME variables",
+ base, str);
+ return -1;
+ }
p = mkdtemp(jit_path);
if (p != jit_path) {
- warn("cannot create jit cache dir %s", jit_path);
+ warn("jvmti: cannot create jit cache dir %s", jit_path);
return -1;
}
@@ -228,7 +245,7 @@ void *jvmti_open(void)
{
char dump_path[PATH_MAX];
struct jitheader header;
- int fd;
+ int fd, ret;
FILE *fp;
init_arch_timestamp();
@@ -245,12 +262,22 @@ void *jvmti_open(void)
memset(&header, 0, sizeof(header));
- debug_cache_init();
+ /*
+ * jitdump file dir
+ */
+ if (create_jit_cache_dir() < 0)
+ return NULL;
/*
* jitdump file name
*/
- scnprintf(dump_path, PATH_MAX, "%s/jit-%i.dump", jit_path, getpid());
+ ret = snprintf(dump_path, PATH_MAX, "%s/jit-%i.dump", jit_path, getpid());
+ if (ret >= PATH_MAX) {
+ warnx("jvmti: cannot generate jitdump file full path because"
+ " %s/jit-%i.dump is too long, please check the cwd,"
+ " JITDUMPDIR, and HOME variables", jit_path, getpid());
+ return NULL;
+ }
fd = open(dump_path, O_CREAT|O_TRUNC|O_RDWR, 0666);
if (fd == -1)
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index fcc8984bc329..acad8ba06d77 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -527,6 +527,7 @@ static int do_test_code_reading(bool try_kcore)
pid = getpid();
machine = machine__new_host();
+ machine->env = &perf_env;
ret = machine__create_kernel_maps(machine);
if (ret < 0) {
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 6276b340f893..b492cb974aa0 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -3,6 +3,7 @@
#include "env.h"
#include "util.h"
#include <errno.h>
+#include <sys/utsname.h>
struct perf_env perf_env;
@@ -87,6 +88,37 @@ int perf_env__read_cpu_topology_map(struct perf_env *env)
return 0;
}
+static int perf_env__read_arch(struct perf_env *env)
+{
+ struct utsname uts;
+
+ if (env->arch)
+ return 0;
+
+ if (!uname(&uts))
+ env->arch = strdup(uts.machine);
+
+ return env->arch ? 0 : -ENOMEM;
+}
+
+static int perf_env__read_nr_cpus_avail(struct perf_env *env)
+{
+ if (env->nr_cpus_avail == 0)
+ env->nr_cpus_avail = cpu__max_present_cpu();
+
+ return env->nr_cpus_avail ? 0 : -ENOENT;
+}
+
+const char *perf_env__raw_arch(struct perf_env *env)
+{
+ return env && !perf_env__read_arch(env) ? env->arch : "unknown";
+}
+
+int perf_env__nr_cpus_avail(struct perf_env *env)
+{
+ return env && !perf_env__read_nr_cpus_avail(env) ? env->nr_cpus_avail : 0;
+}
+
void cpu_cache_level__free(struct cpu_cache_level *cache)
{
free(cache->type);
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index 1eb35b190b34..9aace8452751 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -65,4 +65,8 @@ int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
int perf_env__read_cpu_topology_map(struct perf_env *env);
void cpu_cache_level__free(struct cpu_cache_level *cache);
+
+const char *perf_env__raw_arch(struct perf_env *env);
+int perf_env__nr_cpus_avail(struct perf_env *env);
+
#endif /* __PERF_ENV_H */
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index bd5d5b5e2218..968fd0454e6b 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -818,6 +818,102 @@ static int machine__get_running_kernel_start(struct machine *machine,
return 0;
}
+/* Kernel-space maps for symbols that are outside the main kernel map and module maps */
+struct extra_kernel_map {
+ u64 start;
+ u64 end;
+ u64 pgoff;
+};
+
+static int machine__create_extra_kernel_map(struct machine *machine,
+ struct dso *kernel,
+ struct extra_kernel_map *xm)
+{
+ struct kmap *kmap;
+ struct map *map;
+
+ map = map__new2(xm->start, kernel, MAP__FUNCTION);
+ if (!map)
+ return -1;
+
+ map->end = xm->end;
+ map->pgoff = xm->pgoff;
+
+ kmap = map__kmap(map);
+
+ kmap->kmaps = &machine->kmaps;
+
+ map_groups__insert(&machine->kmaps, map);
+
+ pr_debug2("Added extra kernel map %" PRIx64 "-%" PRIx64 "\n",
+ map->start, map->end);
+
+ map__put(map);
+
+ return 0;
+}
+
+static u64 find_entry_trampoline(struct dso *dso)
+{
+ /* Duplicates are removed so lookup all aliases */
+ const char *syms[] = {
+ "_entry_trampoline",
+ "__entry_trampoline_start",
+ "entry_SYSCALL_64_trampoline",
+ };
+ struct symbol *sym = dso__first_symbol(dso, MAP__FUNCTION);
+ unsigned int i;
+
+ for (; sym; sym = dso__next_symbol(sym)) {
+ if (sym->binding != STB_GLOBAL)
+ continue;
+ for (i = 0; i < ARRAY_SIZE(syms); i++) {
+ if (!strcmp(sym->name, syms[i]))
+ return sym->start;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * These values can be used for kernels that do not have symbols for the entry
+ * trampolines in kallsyms.
+ */
+#define X86_64_CPU_ENTRY_AREA_PER_CPU 0xfffffe0000000000ULL
+#define X86_64_CPU_ENTRY_AREA_SIZE 0x2c000
+#define X86_64_ENTRY_TRAMPOLINE 0x6000
+
+/* Map x86_64 PTI entry trampolines */
+int machine__map_x86_64_entry_trampolines(struct machine *machine,
+ struct dso *kernel)
+{
+ u64 pgoff = find_entry_trampoline(kernel);
+ int nr_cpus_avail, cpu;
+
+ if (!pgoff)
+ return 0;
+
+ nr_cpus_avail = machine__nr_cpus_avail(machine);
+
+ /* Add a 1 page map for each CPU's entry trampoline */
+ for (cpu = 0; cpu < nr_cpus_avail; cpu++) {
+ u64 va = X86_64_CPU_ENTRY_AREA_PER_CPU +
+ cpu * X86_64_CPU_ENTRY_AREA_SIZE +
+ X86_64_ENTRY_TRAMPOLINE;
+ struct extra_kernel_map xm = {
+ .start = va,
+ .end = va + page_size,
+ .pgoff = pgoff,
+ };
+
+ if (machine__create_extra_kernel_map(machine, kernel, &xm) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel)
{
int type;
@@ -2238,6 +2334,20 @@ int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
return 0;
}
+/*
+ * Compares the raw arch string. N.B. see instead perf_env__arch() if a
+ * normalized arch is needed.
+ */
+bool machine__is(struct machine *machine, const char *arch)
+{
+ return machine && !strcmp(perf_env__raw_arch(machine->env), arch);
+}
+
+int machine__nr_cpus_avail(struct machine *machine)
+{
+ return machine ? perf_env__nr_cpus_avail(machine->env) : 0;
+}
+
int machine__get_kernel_start(struct machine *machine)
{
struct map *map = machine__kernel_map(machine);
@@ -2254,7 +2364,12 @@ int machine__get_kernel_start(struct machine *machine)
machine->kernel_start = 1ULL << 63;
if (map) {
err = map__load(map);
- if (!err)
+ /*
+ * On x86_64, PTI entry trampolines are less than the
+ * start of kernel text, but still above 2^63. So leave
+ * kernel_start = 1ULL << 63 for x86_64.
+ */
+ if (!err && !machine__is(machine, "x86_64"))
machine->kernel_start = map->start;
}
return err;
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index d551aa80a59b..13041b036a5b 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -169,6 +169,9 @@ static inline bool machine__is_host(struct machine *machine)
return machine ? machine->pid == HOST_KERNEL_ID : false;
}
+bool machine__is(struct machine *machine, const char *arch);
+int machine__nr_cpus_avail(struct machine *machine);
+
struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
@@ -263,4 +266,7 @@ int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
*/
char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
+int machine__map_x86_64_entry_trampolines(struct machine *machine,
+ struct dso *kernel);
+
#endif /* __PERF_MACHINE_H */
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 2de770511e70..8ad4296de98b 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -338,7 +338,17 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
plt_entry_size = 16;
break;
- default: /* FIXME: s390/alpha/mips/parisc/poperpc/sh/sparc/xtensa need to be checked */
+ case EM_SPARC:
+ plt_header_size = 48;
+ plt_entry_size = 12;
+ break;
+
+ case EM_SPARCV9:
+ plt_header_size = 128;
+ plt_entry_size = 32;
+ break;
+
+ default: /* FIXME: s390/alpha/mips/parisc/poperpc/sh/xtensa need to be checked */
plt_header_size = shdr_plt.sh_entsize;
plt_entry_size = shdr_plt.sh_entsize;
break;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ec40e47aa198..3936f69f385c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1513,20 +1513,22 @@ int dso__load(struct dso *dso, struct map *map)
goto out;
}
+ if (map->groups && map->groups->machine)
+ machine = map->groups->machine;
+ else
+ machine = NULL;
+
if (dso->kernel) {
if (dso->kernel == DSO_TYPE_KERNEL)
ret = dso__load_kernel_sym(dso, map);
else if (dso->kernel == DSO_TYPE_GUEST_KERNEL)
ret = dso__load_guest_kernel_sym(dso, map);
+ if (machine__is(machine, "x86_64"))
+ machine__map_x86_64_entry_trampolines(machine, dso);
goto out;
}
- if (map->groups && map->groups->machine)
- machine = map->groups->machine;
- else
- machine = NULL;
-
dso->adjust_symbols = 0;
if (perfmap) {
