Files
Linux/certs
Masahiro Yamada e6340b6526 certs: Fix build error when CONFIG_MODULE_SIG_KEY is empty
Since b8c96a6b46 ("certs: simplify $(srctree)/ handling and remove
config_filename macro"), when CONFIG_MODULE_SIG_KEY is empty,
signing_key.x509 fails to build:

    CERT    certs/signing_key.x509
  Usage: extract-cert <source> <dest>
  make[1]: *** [certs/Makefile:78: certs/signing_key.x509] Error 2
  make: *** [Makefile:1831: certs] Error 2

Pass "" to the first argument of extract-cert to fix the build error.

Link: https://lore.kernel.org/linux-kbuild/[email protected]/T/#u
Fixes: b8c96a6b46 ("certs: simplify $(srctree)/ handling and remove config_filename macro")
Reported-by: Michal Kubecek <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
Tested-by: Michal Kubecek <[email protected]>
2022-01-23 00:08:44 +09:00
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