netdev - [PATCH net] wireless: Skip directory when generating certificates

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Date:   Tue,  7 May 2019 20:28:15 +0300
From:   Maxim Mikityanskiy <maxtram95@...il.com>
To:     Johannes Berg <johannes@...solutions.net>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-wireless@...r.kernel.org,
        Maxim Mikityanskiy <maxtram95@...il.com>
Subject: [PATCH net] wireless: Skip directory when generating certificates

Commit 715a12334764 ("wireless: don't write C files on failures") drops
the `test -f $$f` check. The list of targets contains the
CONFIG_CFG80211_EXTRA_REGDB_KEYDIR directory itself, and this check used
to filter it out. After the check was removed, the extra keydir option
no longer works, failing with the following message:

od: 'standard input': read error: Is a directory

This commit restores the check to make extra keydir work again.

Fixes: 715a12334764 ("wireless: don't write C files on failures")
Signed-off-by: Maxim Mikityanskiy <maxtram95@...il.com>
---
 net/wireless/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 72a224ce8..2eee93985 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -39,6 +39,7 @@ $(obj)/extra-certs.c: $(CONFIG_CFG80211_EXTRA_REGDB_KEYDIR:"%"=%) \
 	@(set -e; \
 	  allf=""; \
 	  for f in $^ ; do \
+	      test -f $$f || continue;\
 	      # similar to hexdump -v -e '1/1 "0x%.2x," "\n"' \
 	      thisf=$$(od -An -v -tx1 < $$f | \
 	                   sed -e 's/ /\n/g' | \
-- 
2.21.0