Subject: [PATCH] netfilter: nf_tables: Add __percpu annotation to *stats pointer in nf_tables_updchain()

From: Uros Bizjak <[email-masked]>
Date: Tue, 6 Aug 2024 12:26:58 +0200

Compiling nf_tables_api.c results in several sparse warnings:

nf_tables_api.c:2740:23: warning: incorrect type in assignment (different address spaces)
nf_tables_api.c:2752:38: warning: incorrect type in assignment (different address spaces)
nf_tables_api.c:2798:21: warning: incorrect type in argument 1 (different address spaces)

Add __percpu annotation to *stats pointer to fix these warnings.

Found by GCC's named address space checks.

There were no changes in the resulting object files.

Signed-off-by: Uros Bizjak <[email-masked]>
Cc: Pablo Neira Ayuso <[email-masked]>
Cc: Jozsef Kadlecsik <[email-masked]>
Cc: "David S. Miller" <[email-masked]>
Cc: Eric Dumazet <[email-masked]>
Cc: Jakub Kicinski <[email-masked]>
Cc: Paolo Abeni <[email-masked]>
---
 net/netfilter/nf_tables_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 481ee78e77bc..805227131f10 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2642,7 +2642,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 	struct nft_table *table = ctx->table;
 	struct nft_chain *chain = ctx->chain;
 	struct nft_chain_hook hook = {};
-	struct nft_stats *stats = NULL;
+	struct nft_stats __percpu *stats = NULL;
 	struct nft_hook *h, *next;
 	struct nf_hook_ops *ops;
 	struct nft_trans *trans;
-- 
2.45.2