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authorNathan Chancellor <natechancellor@gmail.com>2018-06-02 09:02:09 -0700
committerMasahiro Yamada <yamada.masahiro@socionext.com>2018-06-05 22:07:21 +0900
commit2ae89c7a82ea9d81a19b4fc2df23bef4b112f24e (patch)
tree0c57359c62019cf28dde609a34e2019c850f50ab /init
parentbb6d83dde1913ef5023998976127b9b30f7825b9 (diff)
downloadlinux-2ae89c7a82ea9d81a19b4fc2df23bef4b112f24e.tar.gz
kconfig: Avoid format overflow warning from GCC 8.1
In file included from scripts/kconfig/zconf.tab.c:2485: scripts/kconfig/confdata.c: In function ‘conf_write’: scripts/kconfig/confdata.c:773:22: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=] sprintf(newname, "%s%s", dirname, basename); ^~ scripts/kconfig/confdata.c:773:19: note: assuming directive output of 7 bytes sprintf(newname, "%s%s", dirname, basename); ^~~~~~ scripts/kconfig/confdata.c:773:2: note: ‘sprintf’ output 1 or more bytes (assuming 4104) into a destination of size 4097 sprintf(newname, "%s%s", dirname, basename); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ scripts/kconfig/confdata.c:776:23: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=] sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); ^~~~~~~~~~~ scripts/kconfig/confdata.c:776:3: note: ‘sprintf’ output between 13 and 4119 bytes into a destination of size 4097 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid()); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Increase the size of tmpname and newname to make GCC happy. Cc: stable@vger.kernel.org Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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