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signal/mips: Remove FPE_FIXME usage from mips

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Ralf Baechle recently merged a change to stop explicitly handling this
case on mips, as the case is impossible.  Unfortunately when the code
in force_fcr31_sig to not use siginfo but a simple interger variable gcc
starts warning about an unitialized variable.

So add a return statement so gcc knows the code never attempts to use
the impossible value.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2017-09-05 08:42:47 -05:00
commit 076a9bcacf
2 changed files with 1 additions and 8 deletions
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7
arch/mips/include/uapi/asm/siginfo.h
View File

@ -123,11 +123,4 @@ typedef struct siginfo {
#define SI_TIMER -3 /* sent by timer expiration */
#define SI_MESGQ -4 /* sent by real time mesq state change */
/*
* SIGFPE si_codes
*/
#ifdef __KERNEL__
#define FPE_FIXME 0 /* Broken dup of SI_USER */
#endif /* __KERNEL__ */
#endif /* _UAPI_ASM_SIGINFO_H */

2
arch/mips/kernel/traps.c
View File

@ -735,7 +735,7 @@ void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
else if (fcr31 & FPU_CSR_INE_X)
si.si_code = FPE_FLTRES;
else
si.si_code = FPE_FIXME;
return; /* Broken hardware? */
force_sig_info(SIGFPE, &si, tsk);
}