Commit 1d056d9c authored Nov 03, 2015 by Daniel Borkmann Committed by David S. Miller Nov 03, 2015

bpf, verifier: annotate verbose printer with __printf

The verbose() printer dumps the verifier state to user space, so let gcc
take care to check calls to verbose() for (future) errors. make with W=1
correctly suggests: function might be possible candidate for 'gnu_printf'
format attribute [-Wsuggest-attribute=format].

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 85013ab5

kernel/bpf/verifier.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -214,7 +214,7 @@ static DEFINE_MUTEX(bpf_verifier_lock);
		* verbose() is used to dump the verification trace to the log, so the user
		* can figure out what's wrong with the program
		*/
		static void verbose(const char *fmt, ...)
		static __printf(1, 2) void verbose(const char *fmt, ...)
		{
		va_list args;