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| author | Ingo Molnar <mingo@elte.hu> | 2010-02-25 09:40:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-25 09:40:26 +0100 |
| commit | 996de8c6fe95c5a9fc524241cc8f142ef0605d3d (patch) | |
| tree | 0f637ab0d80d6d7e213707ac2d8c1cc16b69523c /arch/sparc/kernel/kstack.h | |
| parent | rcu: Fix sparse warnings (diff) | |
| parent | Linux 2.6.33 (diff) | |
| download | linux-996de8c6fe95c5a9fc524241cc8f142ef0605d3d.tar.xz linux-996de8c6fe95c5a9fc524241cc8f142ef0605d3d.zip | |
Merge commit 'v2.6.33' into core/rcu
Merge reason: Update from -rc4 to -final.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/kernel/kstack.h')
| -rw-r--r-- | arch/sparc/kernel/kstack.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sparc/kernel/kstack.h b/arch/sparc/kernel/kstack.h index 4248d969272f..5247283d1c03 100644 --- a/arch/sparc/kernel/kstack.h +++ b/arch/sparc/kernel/kstack.h @@ -11,6 +11,10 @@ static inline bool kstack_valid(struct thread_info *tp, unsigned long sp) { unsigned long base = (unsigned long) tp; + /* Stack pointer must be 16-byte aligned. */ + if (sp & (16UL - 1)) + return false; + if (sp >= (base + sizeof(struct thread_info)) && sp <= (base + THREAD_SIZE - sizeof(struct sparc_stackf))) return true; |