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[net-next] net: netfilter: Add __printf() attribute

Message ID 20201031182144.1081847-1-andrew@lunn.ch
State New
Headers show
Series [net-next] net: netfilter: Add __printf() attribute | expand

Commit Message

Andrew Lunn Oct. 31, 2020, 6:21 p.m. UTC
nft_request_module calls vsnprintf() using parameters passed to it.
Make the function with __printf() attribute so the compiler can check
the format and arguments.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
---
 net/netfilter/nf_tables_api.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Pablo Neira Ayuso Oct. 31, 2020, 6:33 p.m. UTC | #1
On Sat, Oct 31, 2020 at 07:21:44PM +0100, Andrew Lunn wrote:
> nft_request_module calls vsnprintf() using parameters passed to it.

> Make the function with __printf() attribute so the compiler can check

> the format and arguments.


Applied, thanks.
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Patch

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 65cb8e3c13d9..522a9d28754b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -581,7 +581,8 @@  struct nft_module_request {
 };
 
 #ifdef CONFIG_MODULES
-static int nft_request_module(struct net *net, const char *fmt, ...)
+static __printf(2, 3) int nft_request_module(struct net *net, const char *fmt,
+					     ...)
 {
 	char module_name[MODULE_NAME_LEN];
 	struct nft_module_request *req;