genksyms: add printf format attribute to error_with_pos()
authorNicolas Iooss <nicolas.iooss_linux@m4x.org>
Sat, 20 May 2017 11:27:00 +0000 (13:27 +0200)
committerMasahiro Yamada <yamada.masahiro@socionext.com>
Mon, 5 Jun 2017 16:22:48 +0000 (01:22 +0900)
commit3def03441e53e29eed3afd9009974a5a42bf124a
treef453118f5f607c8c6ba4efe8cf5a5f9b126c4247
parent08332893e37af6ae779367e78e444f8f9571511d
genksyms: add printf format attribute to error_with_pos()

When compiling with -Wsuggest-attribute=format in HOSTCFLAGS, gcc
complains that error_with_pos() may be declared with a printf format
attribute:

    scripts/genksyms/genksyms.c:726:3: warning: function might be
    possible candidate for ‘gnu_printf’ format attribute
    [-Wsuggest-attribute=format]
       vfprintf(stderr, fmt, args);
       ^~~~~~~~

This would allow catching printf-format errors at compile time in
callers to error_with_pos(). Add this attribute.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
scripts/genksyms/genksyms.h