public inbox for passt-dev@passt.top
 help / color / mirror / code / Atom feed
* [PATCH] udp: Fix signedness warning on 32-bits architectures
@ 2023-02-28 10:17 Stefano Brivio
  2023-03-01  3:26 ` David Gibson
  0 siblings, 1 reply; 2+ messages in thread
From: Stefano Brivio @ 2023-02-28 10:17 UTC (permalink / raw)
  To: passt-dev; +Cc: David Gibson

When a ssize_t is an int:

udp.c: In function ‘udp_sock_handler’:
udp.c:774:23: warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘ssize_t’ {aka ‘int’} [-Wsign-compare]
  774 |         for (i = 0; i < n; i += m) {
      |                       ^
udp.c:781:43: warning: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘ssize_t’ {aka ‘int’} [-Wsign-compare]
  781 |                         for (m = 1; i + m < n; m++) {
      |

Change 'i' and 'm' counters in udp_sock_handler() to signed versions,
to match ssize_t n.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
 udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/udp.c b/udp.c
index 20a9ea0..b7cbfdc 100644
--- a/udp.c
+++ b/udp.c
@@ -754,7 +754,7 @@ void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
 	in_port_t dstport = ref.r.p.udp.udp.port;
 	bool v6 = ref.r.p.udp.udp.v6;
 	struct mmsghdr *mmh_recv;
-	unsigned int i, m;
+	int i, m;
 
 	if (!(events & EPOLLIN))
 		return;
-- 
@@ -754,7 +754,7 @@ void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
 	in_port_t dstport = ref.r.p.udp.udp.port;
 	bool v6 = ref.r.p.udp.udp.v6;
 	struct mmsghdr *mmh_recv;
-	unsigned int i, m;
+	int i, m;
 
 	if (!(events & EPOLLIN))
 		return;
-- 
2.39.1


^ permalink raw reply related	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2023-03-01  5:17 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-28 10:17 [PATCH] udp: Fix signedness warning on 32-bits architectures Stefano Brivio
2023-03-01  3:26 ` David Gibson

Code repositories for project(s) associated with this public inbox

	https://passt.top/passt

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for IMAP folder(s).