On Tue, 25 Jun 2024 15:21:39 +0000 Abhinav Jain jain.abhinav177@gmail.com wrote:
Check the return value from write function to get rid of the warning during test compilation, shared below. Tested by compiling after the change, the warning disappears.
proc-empty-vm.c:385:17: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 385 | write(1, buf, rv);
...
--- a/tools/testing/selftests/proc/proc-empty-vm.c +++ b/tools/testing/selftests/proc/proc-empty-vm.c @@ -382,7 +382,12 @@ static int test_proc_pid_statm(pid_t pid) assert(rv >= 0); assert(rv <= sizeof(buf)); if (0) {
write(1, buf, rv);
ssize_t bytes_written = write(1, buf, rv);if (bytes_written != rv) {perror("write");return EXIT_FAILURE;}
Thanks. There's a patch queued which simply deletes this code.
https://lkml.kernel.org/r/20240603124220.33778-1-amer.shanawany@gmail.com