The patch titled
Subject: unicore32: remove unused pmode argument in c_backtrace()
has been added to the -mm tree. Its filename is
unicore32-remove-unused-pmode-argument-in-c_backtrace.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/unicore32-remove-unused-pmode-argument-in-c_backtrace.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/unicore32-remove-unused-pmode-argument-in-c_backtrace.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Dmitry Safonov <dima@xxxxxxxxxx>
Subject: unicore32: remove unused pmode argument in c_backtrace()
The pmode parameter isn't used in assembly - remove it. Second argument
will be reused for printk() log level.
Link: http://lkml.kernel.org/r/20200418201944.482088-38-dima@xxxxxxxxxx
Signed-off-by: Dmitry Safonov <dima@xxxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/unicore32/kernel/setup.h | 2 +-
arch/unicore32/kernel/traps.c | 14 +++++---------
2 files changed, 6 insertions(+), 10 deletions(-)
--- a/arch/unicore32/kernel/setup.h~unicore32-remove-unused-pmode-argument-in-c_backtrace
+++ a/arch/unicore32/kernel/setup.h
@@ -29,7 +29,7 @@ extern void kernel_thread_helper(void);
extern void __init early_signal_init(void);
extern asmlinkage void __backtrace(void);
-extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+extern asmlinkage void c_backtrace(unsigned long fp);
extern void __show_regs(struct pt_regs *);
--- a/arch/unicore32/kernel/traps.c~unicore32-remove-unused-pmode-argument-in-c_backtrace
+++ a/arch/unicore32/kernel/traps.c
@@ -137,7 +137,7 @@ static void dump_instr(const char *lvl,
static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
{
- unsigned int fp, mode;
+ unsigned int fp;
int ok = 1;
printk(KERN_DEFAULT "Backtrace: ");
@@ -145,16 +145,12 @@ static void dump_backtrace(struct pt_reg
if (!tsk)
tsk = current;
- if (regs) {
+ if (regs)
fp = regs->UCreg_fp;
- mode = processor_mode(regs);
- } else if (tsk != current) {
+ else if (tsk != current)
fp = thread_saved_fp(tsk);
- mode = 0x10;
- } else {
+ else
asm("mov %0, fp" : "=r" (fp) : : "cc");
- mode = 0x10;
- }
if (!fp) {
printk("no frame pointer");
@@ -167,7 +163,7 @@ static void dump_backtrace(struct pt_reg
printk("\n");
if (ok)
- c_backtrace(fp, mode);
+ c_backtrace(fp);
}
void show_stack(struct task_struct *tsk, unsigned long *sp)
_
Patches currently in -mm which might be from dima@xxxxxxxxxx are
kallsyms-printk-add-loglvl-to-print_ip_sym.patch
alpha-add-show_stack_loglvl.patch
arc-add-show_stack_loglvl.patch
arm-asm-add-loglvl-to-c_backtrace.patch
arm-add-loglvl-to-unwind_backtrace.patch
arm-add-loglvl-to-dump_backtrace.patch
arm-wire-up-dump_backtrace_entrystm.patch
arm-add-show_stack_loglvl.patch
arm64-add-loglvl-to-dump_backtrace.patch
arm64-add-show_stack_loglvl.patch
c6x-add-show_stack_loglvl.patch
csky-add-show_stack_loglvl.patch
h8300-add-show_stack_loglvl.patch
hexagon-add-show_stack_loglvl.patch
ia64-pass-log-level-as-arg-into-ia64_do_show_stack.patch
ia64-add-show_stack_loglvl.patch
m68k-add-show_stack_loglvl.patch
microblaze-add-loglvl-to-microblaze_unwind_inner.patch
microblaze-add-loglvl-to-microblaze_unwind.patch
microblaze-add-show_stack_loglvl.patch
mips-add-show_stack_loglvl.patch
nds32-add-show_stack_loglvl.patch
nios2-add-show_stack_loglvl.patch
openrisc-add-show_stack_loglvl.patch
parisc-add-show_stack_loglvl.patch
powerpc-add-show_stack_loglvl.patch
riscv-add-show_stack_loglvl.patch
s390-add-show_stack_loglvl.patch
sh-add-loglvl-to-dump_mem.patch
sh-remove-needless-printk.patch
sh-add-loglvl-to-printk_address.patch
sh-add-loglvl-to-show_trace.patch
sh-add-show_stack_loglvl.patch
sparc-add-show_stack_loglvl.patch
um-sysrq-remove-needless-variable-sp.patch
um-add-show_stack_loglvl.patch
unicore32-remove-unused-pmode-argument-in-c_backtrace.patch
unicore32-add-loglvl-to-c_backtrace.patch
unicore32-add-show_stack_loglvl.patch
x86-add-missing-const-qualifiers-for-log_lvl.patch
x86-add-show_stack_loglvl.patch
xtensa-add-loglvl-to-show_trace.patch
xtensa-add-show_stack_loglvl.patch
sysrq-use-show_stack_loglvl.patch
x86-amd_gart-print-stacktrace-for-a-leak-with-kern_err.patch
power-use-show_stack_loglvl.patch
kdb-dont-play-with-console_loglevel.patch
sched-print-stack-trace-with-kern_info.patch
kernel-use-show_stack_loglvl.patch
kernel-rename-show_stack_loglvl-=-show_stack.patch
