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[1/7] selftests/resctrl: Ensure the benchmark commands fits to its array

Message ID 20230808091625.12760-2-ilpo.jarvinen@linux.intel.com
State New
Headers show
Series selftests/resctrl: Rework benchmark command handling | expand

Commit Message

Ilpo Järvinen Aug. 8, 2023, 9:16 a.m. UTC
Benchmark command is copied into an array in the stack. The array is
BENCHMARK_ARGS items long but the command line could try to provide a
longer command.

Return error in case the benchmark command does not fit to its array.

Fixes: ecdbb911f22d ("selftests/resctrl: Add MBM test")
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 tools/testing/selftests/resctrl/resctrl_tests.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Reinette Chatre Aug. 16, 2023, 9:46 p.m. UTC | #1
Hi Ilpo,

On 8/15/2023 11:32 PM, Ilpo Järvinen wrote:
> Ah sorry, it is actually scripts/get_maintainer.pl automation I use with 
> git send-email to figure out where to send the patches besides the --to & 
> --cc entries I provided. For this patch, get_maintainer.pl returns this 
> list:
> 
> Fenghua Yu <fenghua.yu@intel.com> (supporter:RDT - RESOURCE ALLOCATION,blamed_fixes:1/1=100%)
> Reinette Chatre <reinette.chatre@intel.com> (supporter:RDT - RESOURCE ALLOCATION)
> Shuah Khan <shuah@kernel.org> (maintainer:KERNEL SELFTEST FRAMEWORK,blamed_fixes:1/1=100%)
> Babu Moger <babu.moger@amd.com> (blamed_fixes:1/1=100%)
> Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> (blamed_fixes:1/1=100%)
> linux-kernel@vger.kernel.org (open list:RDT - RESOURCE ALLOCATION)
> linux-kselftest@vger.kernel.org (open list:KERNEL SELFTEST FRAMEWORK)
> 
> ...which includes Sai's address (not much I can do about that, it's 
> immutably crafted into git history that those lines were once touched by 
> Sai). I've thought of writing yet another wrapper to filter out known 
> failing addresses but until that's done, either I need to (remember to) 
> manually send the series w/o get_maintainer.pl automation or accept a few 
> failures here and there.
> 

You can append Sai's address to .get_maintainer.ignore.

Reinette
diff mbox series

Patch

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index d511daeb6851..eef9e02516ad 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -255,6 +255,9 @@  int main(int argc, char **argv)
 		return ksft_exit_skip("Not running as root. Skipping...\n");
 
 	if (has_ben) {
+		if (argc - ben_ind >= BENCHMARK_ARGS - 1)
+			ksft_exit_fail_msg("Too long benchmark command");
+
 		/* Extract benchmark command from command line. */
 		for (i = ben_ind; i < argc; i++) {
 			benchmark_cmd[i - ben_ind] = benchmark_cmd_area[i];