The patch titled
Subject: lib-untag-user-pointers-in-strn_user-fix
has been added to the -mm tree. Its filename is
lib-untag-user-pointers-in-strn_user-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-untag-user-pointers-in-strn_user-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-untag-user-pointers-in-strn_user-fix.patch
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------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: lib-untag-user-pointers-in-strn_user-fix
Fix sparc4 build
This is caused by the difference in untagged_addr() definitions for
sparc and arm64. untagged_addr() for arm64 uses __typeof__ to avoid
casting in places where it is used. Perhaps we should do something
similar for sparc:
Link: http://lkml.kernel.org/r/CAAeHK+yx4a-P0sDrXTUxMvO2H0CJZUFPffBrg_cU7oJOZyC7ew@xxxxxxxxxxxxxx
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Roman Gushchin <guro@xxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Cc: Khalid Aziz <khalid.aziz@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sparc/include/asm/pgtable_64.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/arch/sparc/include/asm/pgtable_64.h~lib-untag-user-pointers-in-strn_user-fix
+++ a/arch/sparc/include/asm/pgtable_64.h
@@ -1078,7 +1078,7 @@ static inline int io_remap_pfn_range(str
}
#define io_remap_pfn_range io_remap_pfn_range
-static inline unsigned long untagged_addr(unsigned long start)
+static inline unsigned long __untagged_addr(unsigned long start)
{
if (adi_capable()) {
long addr = start;
@@ -1098,7 +1098,8 @@ static inline unsigned long untagged_add
return start;
}
-#define untagged_addr untagged_addr
+#define untagged_addr(addr) \
+ ((__typeof__(addr))(__untagged_addr((unsigned long)(addr)))
static inline bool pte_access_permitted(pte_t pte, bool write)
{
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
lib-untag-user-pointers-in-strn_user.patch
lib-untag-user-pointers-in-strn_user-fix.patch
mm-untag-user-pointers-passed-to-memory-syscalls.patch
mm-untag-user-pointers-in-mm-gupc.patch
mm-untag-user-pointers-in-get_vaddr_frames.patch
fs-namespace-untag-user-pointers-in-copy_mount_options.patch
userfaultfd-untag-user-pointers.patch
drm-amdgpu-untag-user-pointers.patch
drm-radeon-untag-user-pointers-in-radeon_gem_userptr_ioctl.patch
media-v4l2-core-untag-user-pointers-in-videobuf_dma_contig_user_get.patch
tee-shm-untag-user-pointers-in-tee_shm_register.patch
vfio-type1-untag-user-pointers-in-vaddr_get_pfn.patch
