cfg80211: make certificate generation more robust
commit b5642479b0 upstream.
If all net/wireless/certs/*.hex files are deleted, the build
will hang at this point since the 'cat' command will have no
arguments. Do "echo | cat - ..." so that even if the "..."
part is empty, the whole thing won't hang.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210618133832.c989056c3664.Ic3b77531d00b30b26dcd69c64e55ae2f60c3f31e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
committed by
Greg Kroah-Hartman
parent
f74df6e086
commit
5493b0c2a7
@@ -28,7 +28,7 @@ $(obj)/shipped-certs.c: $(wildcard $(srctree)/$(src)/certs/*.hex)
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@$(kecho) " GEN $@"
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@(echo '#include "reg.h"'; \
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echo 'const u8 shipped_regdb_certs[] = {'; \
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cat $^ ; \
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echo | cat - $^ ; \
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echo '};'; \
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echo 'unsigned int shipped_regdb_certs_len = sizeof(shipped_regdb_certs);'; \
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) > $@
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