objtool, perf: Fix GCC 8 -Wrestrict error
authorJosh Poimboeuf <jpoimboe@redhat.com>
Fri, 16 Mar 2018 03:11:54 +0000 (22:11 -0500)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 19 Mar 2018 16:51:54 +0000 (13:51 -0300)
commit854e55ad289ef8888e7991f0ada85d5846f5afb9
tree584ab2a433e20fb57715e54f64be3c32ae820138
parentd0461794a1dcaf552b507e23788777f718b736a1
objtool, perf: Fix GCC 8 -Wrestrict error

Starting with recent GCC 8 builds, objtool and perf fail to build with
the following error:

  ../str_error_r.c: In function ‘str_error_r’:
  ../str_error_r.c:25:3: error: passing argument 1 to restrict-qualified parameter aliases with argument 5 [-Werror=restrict]
     snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum, buf, buflen, err);

The code seems harmless, but there's probably no benefit in printing the
'buf' pointer in this situation anyway, so just remove it to make GCC
happy.

Reported-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20180316031154.juk2uncs7baffctp@treble
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/lib/str_error_r.c