diff options
| author |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-07-23 09:05:38 +0100 |
|---|---|---|
| committer |   Mark Rutland <mark.rutland@arm.com> | 2017-08-09 14:10:29 +0100 |
| commit | 31e43ad3b74a5d7b282023b72f25fc677c14c727 (patch) | |
| tree | 8329fe0b3d9d9f51f9bcc6390f9526e70b922aaf /arch/arm64/kernel/time.c | |
| parent | arm64: unwind: reference pt_regs via embedded stack frame (diff) | |
| download | linux-dev-31e43ad3b74a5d7b282023b72f25fc677c14c727.tar.xz linux-dev-31e43ad3b74a5d7b282023b72f25fc677c14c727.zip | |
arm64: unwind: remove sp from struct stackframe
The unwind code sets the sp member of struct stackframe to
'frame pointer + 0x10' unconditionally, without regard for whether
doing so produces a legal value. So let's simply remove it now that
we have stopped using it anyway.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/kernel/time.c')
| -rw-r--r-- | arch/arm64/kernel/time.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c index da33c90248e9..a4391280fba9 100644 --- a/arch/arm64/kernel/time.c +++ b/arch/arm64/kernel/time.c @@ -50,7 +50,6 @@ unsigned long profile_pc(struct pt_regs *regs) return regs->pc; frame.fp = regs->regs[29]; - frame.sp = regs->sp; frame.pc = regs->pc; #ifdef CONFIG_FUNCTION_GRAPH_TRACER frame.graph = -1; /* no task info */ |