4.19-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 5a8de47b3c250521dd632cdedaac6db88367defa ]
With 4.19, programs like ebtables fail to build when they include "linux/netfilter_bridge.h". It is caused by commit 94276fa8a2a4 which added a use of INT_MIN and INT_MAX to the header: : In file included from /usr/include/linux/netfilter_bridge/ebtables.h:18, : from include/ebtables_u.h:28, : from communication.c:23: : /usr/include/linux/netfilter_bridge.h:30:20: error: 'INT_MIN' undeclared here (not in a function) : NF_BR_PRI_FIRST = INT_MIN, : ^~~~~~~
Define these constants by including "limits.h" when !__KERNEL__ (the same way as for other netfilter_* headers).
Fixes: 94276fa8a2a4 ("netfilter: bridge: Expose nf_tables bridge hook priorities through uapi") Signed-off-by: Jiri Slaby jslaby@suse.cz Acked-by: Máté Eckl ecklm94@gmail.com Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/netfilter_bridge.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/uapi/linux/netfilter_bridge.h b/include/uapi/linux/netfilter_bridge.h index 156ccd089df1..1610fdbab98d 100644 --- a/include/uapi/linux/netfilter_bridge.h +++ b/include/uapi/linux/netfilter_bridge.h @@ -11,6 +11,10 @@ #include <linux/if_vlan.h> #include <linux/if_pppox.h>
+#ifndef __KERNEL__ +#include <limits.h> /* for INT_MIN, INT_MAX */ +#endif + /* Bridge Hooks */ /* After promisc drops, checksum checks. */ #define NF_BR_PRE_ROUTING 0