netdev - [PATCH net-next] bpfilter: fix OUTPUT

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Message-ID: <20180607172929.3154049-1-ast@kernel.org>
Date:   Thu, 7 Jun 2018 10:29:29 -0700
From:   Alexei Starovoitov <ast@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>
CC:     <daniel@...earbox.net>, <netdev@...r.kernel.org>,
        <kernel-team@...com>
Subject: [PATCH net-next] bpfilter: fix OUTPUT_FORMAT

From: Alexei Starovoitov <ast@...com>

CONFIG_OUTPUT_FORMAT is x86 only macro.
Used objdump to extract elf file format.

Fixes: d2ba09c17a06 ("net: add skeleton of bpfilter kernel module")
Reported-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Alexei Starovoitov <ast@...nel.org>
---
 net/bpfilter/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bpfilter/Makefile b/net/bpfilter/Makefile
index aafa72001fcd..e0bbe7583e58 100644
--- a/net/bpfilter/Makefile
+++ b/net/bpfilter/Makefile
@@ -21,7 +21,7 @@ endif
 # which bpfilter_kern.c passes further into umh blob loader at run-time
 quiet_cmd_copy_umh = GEN $@
       cmd_copy_umh = echo ':' > $(obj)/.bpfilter_umh.o.cmd; \
-      $(OBJCOPY) -I binary -O $(CONFIG_OUTPUT_FORMAT) \
+      $(OBJCOPY) -I binary -O `$(OBJDUMP) -f $<|grep format|cut -d' ' -f8` \
       -B `$(OBJDUMP) -f $<|grep architecture|cut -d, -f1|cut -d' ' -f2` \
       --rename-section .data=.init.rodata $< $@
 
-- 
2.9.5