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| author |   Harvey Harrison <harvey.harrison@gmail.com> | 2008-01-30 13:33:12 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:12 +0100 |
| commit | f13bd3e7935f7020f7c622bf3f8cae8eee757a53 (patch) | |
| tree | 5930ec49601600b9eff35ca440a40b5a7320d357 /arch/x86/kernel/step.c | |
| parent | x86: change bios_cpu_apicid to percpu data variable (diff) | |
| download | linux-dev-f13bd3e7935f7020f7c622bf3f8cae8eee757a53.tar.xz linux-dev-f13bd3e7935f7020f7c622bf3f8cae8eee757a53.zip | |
x86: use wrmsrl in kprobes.c, step.c
Where x86_32 passed zero in the high 32 bits, use wrmsrl which
will zero extend for us. This allows ifdefs for 32/64 bit to
be eliminated.
Eliminate ifdef in step.c. Similar cleanup was done when unifying
kprobes_32|64.c and wrmsr() was chosen there over wrmsrl(). This
patch changes these to wrmsrl.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/step.c')
| -rw-r--r-- | arch/x86/kernel/step.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c index 5884dd485db8..b801e76cebf7 100644 --- a/arch/x86/kernel/step.c +++ b/arch/x86/kernel/step.c @@ -229,11 +229,7 @@ static void write_debugctlmsr(struct task_struct *child, unsigned long val) if (child != current) return; -#ifdef CONFIG_X86_64 wrmsrl(MSR_IA32_DEBUGCTLMSR, val); -#else - wrmsr(MSR_IA32_DEBUGCTLMSR, val, 0); -#endif } /* |