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arm64: Add brackets around user_stack_pointer() 

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: 5f888a1d33 (ARM64: perf: support dwarf unwinding in compat mode)
Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Catalin Marinas 2014-08-29 16:08:02 +01:00 committed by Will Deacon
parent 5b75a6af11
commit 2520d03972
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/ptrace.h
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@ -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)
{