[1/2] mm/gup_benchmark: add a missing "w" to getopt string
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Message ID 20191013221155.382378-2-jhubbard@nvidia.com
State New
Headers show
Series
  • gup.c, gup_benchmark.c trivial fixes before the storm
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Commit Message

John Hubbard Oct. 13, 2019, 10:11 p.m. UTC
Even though gup_benchmark.c has code to handle the -w
command-line option, the "w" is not part of the getopt
string. It looks as if it has been missing the whole time.

On my machine, this leads naturally to the following
predictable result:

$ sudo ./gup_benchmark -w
./gup_benchmark: invalid option -- 'w'

...which is fixed, with this commit.

Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 tools/testing/selftests/vm/gup_benchmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kirill A. Shutemov Oct. 14, 2019, 1:36 p.m. UTC | #1
On Sun, Oct 13, 2019 at 03:11:54PM -0700, John Hubbard wrote:
> Even though gup_benchmark.c has code to handle the -w
> command-line option, the "w" is not part of the getopt
> string. It looks as if it has been missing the whole time.
> 
> On my machine, this leads naturally to the following
> predictable result:
> 
> $ sudo ./gup_benchmark -w
> ./gup_benchmark: invalid option -- 'w'
> 
> ...which is fixed, with this commit.
> 
> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> Cc: Keith Busch <keith.busch@intel.com>
> Cc: Shuah Khan <shuah@kernel.org>
> Cc: linux-kselftest@vger.kernel.org
> Signed-off-by: John Hubbard <jhubbard@nvidia.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

Patch
diff mbox series

diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c
index c0534e298b51..cb3fc09645c4 100644
--- a/tools/testing/selftests/vm/gup_benchmark.c
+++ b/tools/testing/selftests/vm/gup_benchmark.c
@@ -37,7 +37,7 @@  int main(int argc, char **argv)
 	char *file = "/dev/zero";
 	char *p;
 
-	while ((opt = getopt(argc, argv, "m:r:n:f:tTLUSH")) != -1) {
+	while ((opt = getopt(argc, argv, "m:r:n:f:tTLUwSH")) != -1) {
 		switch (opt) {
 		case 'm':
 			size = atoi(optarg) * MB;