This is a note to let you know that I've just added the patch titled
arm64: Add brackets around user_stack_pointer()
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-add-brackets-around-user_stack_pointer.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2520d039728b2a3c5ae7f79fe2a0e9d182855b12 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@xxxxxxx>
Date: Fri, 29 Aug 2014 16:08:02 +0100
Subject: arm64: Add brackets around user_stack_pointer()
From: Catalin Marinas <catalin.marinas@xxxxxxx>
commit 2520d039728b2a3c5ae7f79fe2a0e9d182855b12 upstream.
Commit 5f888a1d33 (ARM64: perf: support dwarf unwinding in compat mode)
changes user_stack_pointer() to return the compat SP for 32-bit tasks
but without brackets around the whole definition, with possible issues
on the call sites (noticed with a subsequent fix for KSTK_ESP).
Fixes: 5f888a1d33c4 (ARM64: perf: support dwarf unwinding in compat mode)
Reported-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/include/asm/ptrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -137,7 +137,7 @@ struct pt_regs {
(!((regs)->pstate & PSR_F_BIT))
#define user_stack_pointer(regs) \
- (!compat_user_mode(regs)) ? ((regs)->sp) : ((regs)->compat_sp)
+ (!compat_user_mode(regs) ? (regs)->sp : (regs)->compat_sp)
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
Patches currently in stable-queue which might be from catalin.marinas@xxxxxxx are
queue-3.16/arm64-use-irq_set_affinity-with-force-false-when-migrating-irqs.patch
queue-3.16/arm64-add-brackets-around-user_stack_pointer.patch
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