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net: introduce EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL()

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We have many EXPORT_SYMBOL(x) in networking tree because IPv6
can be built as a module.

CONFIG_IPV6=y is becoming the norm.

Define a EXPORT_IPV6_MOD(x) which only exports x
for modular IPv6.

Same principle applies to EXPORT_IPV6_MOD_GPL()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Link: https://patch.msgid.link/20250212132418.1524422-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2025-02-12 13:24:15 +00:00 committed by Jakub Kicinski
parent 7a7e019713
commit 54568a84c9
1 changed files with 8 additions and 0 deletions
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8
include/net/ip.h
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@ -673,6 +673,14 @@ static inline void ip_ipgre_mc_map(__be32 naddr, const unsigned char *broadcast,
memcpy(buf, &naddr, sizeof(naddr));
}
#if IS_MODULE(CONFIG_IPV6)
#define EXPORT_IPV6_MOD(X) EXPORT_SYMBOL(X)
#define EXPORT_IPV6_MOD_GPL(X) EXPORT_SYMBOL_GPL(X)
#else
#define EXPORT_IPV6_MOD(X)
#define EXPORT_IPV6_MOD_GPL(X)
#endif
#if IS_ENABLED(CONFIG_IPV6)
#include <linux/ipv6.h>
#endif