[PATCH v3 03/20] test_firmware: replace syfs fallback check with kconfig_has helper

["Luis R. Rodriguez" <mcgrof@kernel.org>]

Now that we have a kconfig checker just use that instead of relying
on testing a sysfs directory being present, since our requirements
are spelled out.

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
 tools/testing/selftests/firmware/fw_fallback.sh | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index bf850050e5e9..323c921a2469 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -11,10 +11,7 @@ source $TEST_DIR/fw_lib.sh
 
 check_mods
 
-# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
-# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
-# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
-HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
+HAS_FW_LOADER_USER_HELPER=$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)
 HAS_FW_LOADER_USER_HELPER_FALLBACK=$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)
 
 if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
-- 
2.16.2