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| author | David S. Miller <davem@davemloft.net> | 2010-02-20 13:53:16 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-20 13:53:16 -0800 |
| commit | 198d2f63a6096fe575b696b13ba61b62c620266f (patch) | |
| tree | d0c2b0697370cc670029cd1eb2a80c35c71eac60 /arch/sparc/kernel/kstack.h | |
| parent | 0da2b300b91ddeb9944c3fb4faaf78c1c482c0af (diff) | |
| parent | 1f474646fdc36b457606bbcd6a3592e6cbd31ac4 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
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 4248d969272..5247283d1c0 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; |