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author | David S. Miller <davem@davemloft.net> | 2008-12-02 19:50:27 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2008-12-02 19:50:27 -0800 |
commit | aa2ba5f1082dc705745899584aac8416d710c056 (patch) | |
tree | bde0bf4aff036c6bac19a0212194ae1092afb3c9 /arch/s390/include/asm/syscall.h | |
parent | 68024541e2e5a8f35e281daaa5068a29e2a538a5 (diff) | |
parent | f6f7b52e2f6149d2ee365717afff315b05720162 (diff) | |
download | kernel_samsung_crespo-aa2ba5f1082dc705745899584aac8416d710c056.zip kernel_samsung_crespo-aa2ba5f1082dc705745899584aac8416d710c056.tar.gz kernel_samsung_crespo-aa2ba5f1082dc705745899584aac8416d710c056.tar.bz2 |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/ixgbe/ixgbe_main.c
drivers/net/smc91x.c
Diffstat (limited to 'arch/s390/include/asm/syscall.h')
-rw-r--r-- | arch/s390/include/asm/syscall.h | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 6e62397..2429b87 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -17,9 +17,7 @@ static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { - if (regs->trap != __LC_SVC_OLD_PSW) - return -1; - return regs->gprs[2]; + return regs->svcnr ? regs->svcnr : -1; } static inline void syscall_rollback(struct task_struct *task, @@ -52,18 +50,20 @@ static inline void syscall_get_arguments(struct task_struct *task, unsigned int i, unsigned int n, unsigned long *args) { + unsigned long mask = -1UL; + BUG_ON(i + n > 6); #ifdef CONFIG_COMPAT - if (test_tsk_thread_flag(task, TIF_31BIT)) { - if (i + n == 6) - args[--n] = (u32) regs->args[0]; - while (n-- > 0) - args[n] = (u32) regs->gprs[2 + i + n]; - } + if (test_tsk_thread_flag(task, TIF_31BIT)) + mask = 0xffffffff; #endif if (i + n == 6) - args[--n] = regs->args[0]; - memcpy(args, ®s->gprs[2 + i], n * sizeof(args[0])); + args[--n] = regs->args[0] & mask; + while (n-- > 0) + if (i + n > 0) + args[n] = regs->gprs[2 + i + n] & mask; + if (i == 0) + args[0] = regs->orig_gpr2 & mask; } static inline void syscall_set_arguments(struct task_struct *task, @@ -74,7 +74,11 @@ static inline void syscall_set_arguments(struct task_struct *task, BUG_ON(i + n > 6); if (i + n == 6) regs->args[0] = args[--n]; - memcpy(®s->gprs[2 + i], args, n * sizeof(args[0])); + while (n-- > 0) + if (i + n > 0) + regs->gprs[2 + i + n] = args[n]; + if (i == 0) + regs->orig_gpr2 = args[0]; } #endif /* _ASM_SYSCALL_H */ |