diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2018-04-17 15:45:30 -0500 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2018-04-25 10:40:55 -0500 |
| commit | 51dd709fee9479bf9a104b3562dadff3094b2f0d (patch) | |
| tree | f25287376906f8ab70ab71648beea45073dd648c /arch/ia64 | |
| parent | 4cc13e4f6d441600737a1c8434cea5281c528fcf (diff) | |
| download | op-kernel-dev-51dd709fee9479bf9a104b3562dadff3094b2f0d.zip op-kernel-dev-51dd709fee9479bf9a104b3562dadff3094b2f0d.tar.gz | |
signal/ia64: Replace FPE_FIXME with FPE_FLTUNK
Using an si_code of 0 that aliases with SI_USER is clearly the wrong
thing todo, and causes problems in interesting ways.
The newly defined FPE_FLTUNK semantically appears to fit the bill so
use it instead.
Given recent experience in this area odds are it will not
break anything. Fixing it removes a hazard to kernel maintenance.
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
Fixes: 987159266c45 ("Linux version 2.3.48")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/uapi/asm/siginfo.h | 7 | ||||
| -rw-r--r-- | arch/ia64/kernel/traps.c | 4 |
2 files changed, 2 insertions, 9 deletions
diff --git a/arch/ia64/include/uapi/asm/siginfo.h b/arch/ia64/include/uapi/asm/siginfo.h index 5aa454e..52b5af4 100644 --- a/arch/ia64/include/uapi/asm/siginfo.h +++ b/arch/ia64/include/uapi/asm/siginfo.h @@ -27,11 +27,4 @@ #define __ISR_VALID_BIT 0 #define __ISR_VALID (1 << __ISR_VALID_BIT) -/* - * SIGFPE si_codes - */ -#ifdef __KERNEL__ -#define FPE_FIXME 0 /* Broken dup of SI_USER */ -#endif /* __KERNEL__ */ - #endif /* _UAPI_ASM_IA64_SIGINFO_H */ diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 972873e..c6f4932 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -353,7 +353,7 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr) clear_siginfo(&siginfo); siginfo.si_signo = SIGFPE; siginfo.si_errno = 0; - siginfo.si_code = FPE_FIXME; /* default code */ + siginfo.si_code = FPE_FLTUNK; /* default code */ siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri); if (isr & 0x11) { siginfo.si_code = FPE_FLTINV; @@ -380,7 +380,7 @@ handle_fpu_swa (int fp_fault, struct pt_regs *regs, unsigned long isr) clear_siginfo(&siginfo); siginfo.si_signo = SIGFPE; siginfo.si_errno = 0; - siginfo.si_code = FPE_FIXME; /* default code */ + siginfo.si_code = FPE_FLTUNK; /* default code */ siginfo.si_addr = (void __user *) (regs->cr_iip + ia64_psr(regs)->ri); if (isr & 0x880) { siginfo.si_code = FPE_FLTOVF; |
