From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx> commit dfbc3c6cb747c074aa2ba0a10bbeea588d6dfda6 upstream. [ Change applied file from tools/lib/subcmd/pager.c to tools/perf/util/pager.c ] Use a separate fd set for select()-s exception fds param to fix the following gcc warning: pager.c:36:12: error: passing argument 2 to restrict-qualified parameter aliases with argument 4 [-Werror=restrict] select(1, &in, NULL, &in, NULL); ^~~ ~~~ Link: http://lkml.kernel.org/r/20180101105626.7168-1-sergey.senozhatsky@xxxxxxxxx Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/perf/util/pager.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/tools/perf/util/pager.c +++ b/tools/perf/util/pager.c @@ -16,10 +16,13 @@ static void pager_preexec(void) * have real input */ fd_set in; + fd_set exception; FD_ZERO(&in); + FD_ZERO(&exception); FD_SET(0, &in); - select(1, &in, NULL, &in, NULL); + FD_SET(0, &exception); + select(1, &in, NULL, &exception, NULL); setenv("LESS", "FRSX", 0); }