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| author | Catalin Marinas <catalin.marinas@arm.com> | 2014-08-29 19:08:02 +0400 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2014-08-29 19:11:00 +0400 |
| commit | 2520d039728b2a3c5ae7f79fe2a0e9d182855b12 (patch) | |
| tree | 0a0d092f82171f9a4749334c2f1c5c804b425401 | |
| parent | 5b75a6af11357813a7eeb4a29d0261adbbfab556 (diff) | |
| download | linux-2520d039728b2a3c5ae7f79fe2a0e9d182855b12.tar.xz | |
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: 5f888a1d33c4 (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>
| -rw-r--r-- | arch/arm64/include/asm/ptrace.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 501000fadb6f..41ed9e13795e 100644 --- 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) { |