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26da35010c
linux/arch/sh
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Eric W. Biederman 26da35010c signal/sh: Stop gcc warning about an impossible case in do_divide_error 
Geert Uytterhoeven <geert@linux-m68k.org> reported:
>   HOSTLD  scripts/mod/modpost
>   CC      arch/sh/kernel/traps_32.o
> arch/sh/kernel/traps_32.c: In function 'do_divide_error':
> arch/sh/kernel/traps_32.c:606:17: error: 'code' may be used uninitialized in this function [-Werror=uninitialized]
> cc1: all warnings being treated as errors

It is clear from inspection that do_divide_error is only called with
TRAP_DIVZERO_ERROR or TRAP_DIVOVF_ERROR, as that is the way
set_exception_table_vec is called.  So let gcc know the other cases
should not be considered by returning in all other cases.

This removes the warning and let's the code continue to build.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: c65626c0cd ("signal/sh: Use force_sig_fault where appropriate")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2018-05-29 09:59:21 -05:00
..
boards Fixes for bugs in futex, device tree, and userspace breakpoint traps, 2018-04-13 12:27:11 -07:00
boot zboot: fix stack protector in compressed boot phase 2018-04-05 21:36:21 -07:00
cchips License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
configs firmware: Drop FIRMWARE_IN_KERNEL Kconfig option 2018-01-25 12:46:30 +01:00
drivers arch/sh: pcie-sh7786: handle non-zero DMA offset 2018-04-12 19:47:58 -04:00
include arch/sh: add sh7786_mm_sel() function 2018-04-12 19:47:53 -04:00
kernel signal/sh: Stop gcc warning about an impossible case in do_divide_error 2018-05-29 09:59:21 -05:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lib64 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
math-emu signal/sh: Use force_sig_fault where appropriate 2018-04-25 10:44:09 -05:00
mm signal/sh: Use force_sig_fault where appropriate 2018-04-25 10:44:09 -05:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.cpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile sh: select KBUILD_DEFCONFIG depending on ARCH 2017-11-13 22:58:18 +09:00