selftests: kmod: use variable NAME in kmod_test_0001()

Patch series "kmod/umh: a few fixes".

Tiezhu Yang had sent out a patch set with a slew of kmod selftest fixes,
and one patch which modified kmod to return 254 when a module was not
found.  This opened up pandora's box about why that was being used for and
low and behold its because when UMH_WAIT_PROC is used we call a
kernel_wait4() call but have never unwrapped the error code.  The commit
log for that fix details the rationale for the approach taken.  I'd
appreciate some review on that, in particular nfs folks as it seems a case
was never really hit before.

This patch (of 5):

Use the variable NAME instead of "\000" directly in kmod_test_0001().

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Lars Ellenberg <lars.ellenberg@linbit.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: J. Bruce Fields <bfields@fieldses.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Sergei Trofimovich <slyfox@gentoo.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Sergey Kvachonok <ravenexp@gmail.com>
Cc: Tony Vroon <chainsaw@gentoo.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Link: http://lkml.kernel.org/r/20200610154923.27510-1-mcgrof@kernel.org
Link: http://lkml.kernel.org/r/20200610154923.27510-2-mcgrof@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/tools/testing/selftests/kmod/kmod.sh b/tools/testing/selftests/kmod/kmod.sh
index ea2147248ebe649a7aa9db2352ca36ea382b5cea..afd42387e8b217164b8503d496b7e12a24b98afb 100755 (executable)
--- a/tools/testing/selftests/kmod/kmod.sh
+++ b/tools/testing/selftests/kmod/kmod.sh
@@ -343,7 +343,7 @@ kmod_test_0001_driver()
 
        kmod_defaults_driver
        config_num_threads 1
-       printf '\000' >"$DIR"/config_test_driver
+       printf $NAME >"$DIR"/config_test_driver
        config_trigger ${FUNCNAME[0]}
        config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
 }
@@ -354,7 +354,7 @@ kmod_test_0001_fs()
 
        kmod_defaults_fs
        config_num_threads 1
-       printf '\000' >"$DIR"/config_test_fs
+       printf $NAME >"$DIR"/config_test_fs
        config_trigger ${FUNCNAME[0]}
        config_expect_result ${FUNCNAME[0]} -EINVAL
 }