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| author |   Tejun Heo <tj@kernel.org> | 2009-01-20 12:29:19 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-01-20 12:29:19 +0900 |
| commit | c6e50f93db5bd0895ec7c7d1b6f3886c6e1f11b6 (patch) | |
| tree | 3d6b2d04118bb61fb50cf7624aaf7f7e4f5916ce /arch/x86/kernel/process_64.c | |
| parent | Merge branch 'stackprotector' into core/percpu (diff) | |
| download | linux-dev-c6e50f93db5bd0895ec7c7d1b6f3886c6e1f11b6.tar.xz linux-dev-c6e50f93db5bd0895ec7c7d1b6f3886c6e1f11b6.zip | |
x86: cleanup stack protector
Impact: cleanup
Make the following cleanups.
* remove duplicate comment from boot_init_stack_canary() which fits
better in the other place - cpu_idle().
* move stack_canary offset check from __switch_to() to
boot_init_stack_canary().
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/kernel/process_64.c')
| -rw-r--r-- | arch/x86/kernel/process_64.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index aa89eabf09e0..088bc9a0f82c 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -638,13 +638,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) percpu_write(kernel_stack, (unsigned long)task_stack_page(next_p) + THREAD_SIZE - KERNEL_STACK_OFFSET); -#ifdef CONFIG_CC_STACKPROTECTOR - /* - * Build time only check to make sure the stack_canary is at - * offset 40 in the pda; this is a gcc ABI requirement - */ - BUILD_BUG_ON(offsetof(struct x8664_pda, stack_canary) != 40); -#endif /* * Now maybe reload the debug registers and handle I/O bitmaps |