Re: [PATCH] selftests/exec: Avoid future NULL argv execve warning

From: Shuah Khan
Date: Wed Feb 02 2022 - 12:39:01 EST


On 2/2/22 8:13 AM, Alexey Dobriyan wrote:
On Mon, Jan 31, 2022 at 04:08:07PM -0800, Kees Cook wrote:
Build actual argv for launching recursion test to avoid future warning
about using an empty argv in execve().

--- a/tools/testing/selftests/exec/recursion-depth.c
+++ b/tools/testing/selftests/exec/recursion-depth.c
@@ -24,8 +24,14 @@
#include <sys/mount.h>
#include <unistd.h>
+#define FILENAME "/tmp/1"
+#define HASHBANG "#!" FILENAME "\n"
+
int main(void)
{
+ char * const argv[] = { FILENAME, NULL };
+ int rv;

Can we move out of -Wdeclaration-after-statement mentality in tests at least?

selftest like the rest of the kernel follows the same coding guidelines.
It will follow the moving "-Wdeclaration-after-statement mentality" when
the rest of the kernel does.

Looks like this topic was discussed in the following:
https://patchwork.kernel.org/project/linux-kbuild/patch/c6fda26e8d134264b04fadc3386d6c32@xxxxxxxxx/

thanks,
-- Shuah