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| author | Pekka Enberg <penberg@kernel.org> | 2013-04-17 18:24:52 +0000 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2013-04-17 18:25:32 +0000 |
| commit | 9985bc420a8c99e5fa03187da9cd5f3b98349351 (patch) | |
| tree | c8b5ad9bd589eef78dec8305a6a01f280b8366f2 | |
| parent | a048d852cac71dc4753288cfd5536560d7a2a9b9 (diff) | |
| download | jato-9985bc420a8c99e5fa03187da9cd5f3b98349351.tar.gz | |
sys/linux-x86: Simplify install_signal_bh()
Signed-off-by: Pekka Enberg <penberg@kernel.org>
| -rw-r--r-- | sys/linux-x86/signal.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/sys/linux-x86/signal.c b/sys/linux-x86/signal.c index f51bd0d8..8fdf2d53 100644 --- a/sys/linux-x86/signal.c +++ b/sys/linux-x86/signal.c @@ -68,19 +68,16 @@ int install_signal_bh(void *ctx, signal_bh_fn bh) uc = ctx; - stack = (unsigned long*)uc->uc_mcontext.gregs[REG_SP]; + stack = (unsigned long *) uc->uc_mcontext.gregs[REG_SP]; /* push bottom-half handler address on stack */ - stack--; - *stack = (unsigned long)bh; + *(--stack) = (unsigned long) bh; /* push return address on stack */ - stack--; - *stack = uc->uc_mcontext.gregs[REG_IP]; + *(--stack) = uc->uc_mcontext.gregs[REG_IP]; - uc->uc_mcontext.gregs[REG_SP] -= 2 * sizeof(unsigned long); - - uc->uc_mcontext.gregs[REG_IP] = (unsigned long)signal_bh_trampoline; + uc->uc_mcontext.gregs[REG_SP] = (unsigned long) stack; + uc->uc_mcontext.gregs[REG_IP] = (unsigned long) signal_bh_trampoline; return 0; } |