The patch titled
gcc-4.6: kgdb: remove set but unused newPC
has been added to the -mm tree. Its filename is
gcc-46-kgdb-remove-set-but-unused-newpc.patch
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------------------------------------------------------
Subject: gcc-4.6: kgdb: remove set but unused newPC
From: Andi Kleen <andi@xxxxxxxxxxxxxx>
I'm not fully sure this is the correct fix, maybe this was a bug and newPC
should really have a side effect.
Found by gcc 4.6's new warnings.
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/kgdb.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN arch/x86/kernel/kgdb.c~gcc-46-kgdb-remove-set-but-unused-newpc arch/x86/kernel/kgdb.c
--- a/arch/x86/kernel/kgdb.c~gcc-46-kgdb-remove-set-but-unused-newpc
+++ a/arch/x86/kernel/kgdb.c
@@ -458,7 +458,6 @@ int kgdb_arch_handle_exception(int e_vec
{
unsigned long addr;
char *ptr;
- int newPC;
switch (remcomInBuffer[0]) {
case 'c':
@@ -469,8 +468,6 @@ int kgdb_arch_handle_exception(int e_vec
linux_regs->ip = addr;
case 'D':
case 'k':
- newPC = linux_regs->ip;
-
/* clear the trace bit */
linux_regs->flags &= ~X86_EFLAGS_TF;
atomic_set(&kgdb_cpu_doing_single_step, -1);
_
Patches currently in -mm which might be from andi@xxxxxxxxxxxxxx are
linux-next.patch
percpu-online-cpu-before-memory-failed-in-pcpu_alloc_pages.patch
modpost-support-objects-with-more-than-64k-sections.patch
kernelh-add-hw_err-printk-prefix-for-hardware-error-logging.patch
x86-use-hw_err-in-mce-handler.patch
gcc-46-irq-move-alloc_desk_mask-variables-inside-ifdef.patch
gcc-46-x86-avoid-unused-by-set-variables-in-rdmsr.patch
gcc-46-pagemap-avoid-unused-but-set-variable.patch
gcc-46-perf-fix-set-but-unused-variables-in-perf.patch
gcc-46-x86-fix-set-but-not-read-variables.patch
gcc-46-kgdb-remove-set-but-unused-newpc.patch
gcc-46-printk-use-stable-variable-to-dump-kmsg-buffer.patch
gcc-46-btrfs-clean-up-unused-variables-bugs.patch
gcc-46-btrfs-clean-up-unused-variables-nonbugs.patch
gcc-46-nfsd-fix-initialized-but-not-read-warnings.patch
gcc-46-acpi-fix-unused-but-set-variables-in-acpi.patch
gcc-46-mm-fix-unused-but-set-warnings.patch
gcc-46-kernel-fix-unused-but-set-warnings.patch
gcc-46-block-fix-unused-but-set-variables-in-blk-merge.patch
gcc-46-fs-fix-unused-but-set-warnings.patch
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