diff options
| author |   Peng Jiang <jiang.peng9@zte.com.cn> | 2025-06-20 08:41:04 +0800 |
|---|---|---|
| committer |   Juergen Gross <jgross@suse.com> | 2025-07-14 09:34:54 +0200 |
| commit | b7efeb081ed3b80c6af38c285f5c3b5d15c560e9 (patch) | |
| tree | 34bc90b138908a039a2b90bf34d0e6072a3c5112 | |
| parent | Linux 6.16-rc6 (diff) | |
| download | wireguard-linux-b7efeb081ed3b80c6af38c285f5c3b5d15c560e9.tar.xz wireguard-linux-b7efeb081ed3b80c6af38c285f5c3b5d15c560e9.zip | |
xen/xenbus: fix W=1 build warning in xenbus_va_dev_error function
This patch fixes a W=1 format-string warning reported by GCC 12.3.0
by annotating xenbus_switch_fatal() and xenbus_va_dev_error()
with the __printf attribute. The attribute enables compile-time
validation of printf-style format strings in these functions.
The original warning trace:
drivers/xen/xenbus/xenbus_client.c:304:9: warning: function 'xenbus_va_dev_error' might be
a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
Signed-off-by: Peng Jiang <jiang.peng9@zte.com.cn>
Reviewed-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250620084104786r5xoR16_AmYZMJLnno3_Q@zte.com.cn>
Signed-off-by: Juergen Gross <jgross@suse.com>
| -rw-r--r-- | drivers/xen/xenbus/xenbus_client.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 51b3124b0d56..e73ec225d4a6 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -202,6 +202,7 @@ int xenbus_watch_pathfmt(struct xenbus_device *dev, } EXPORT_SYMBOL_GPL(xenbus_watch_pathfmt); +__printf(4, 5) static void xenbus_switch_fatal(struct xenbus_device *, int, int, const char *, ...); @@ -287,6 +288,7 @@ int xenbus_frontend_closed(struct xenbus_device *dev) } EXPORT_SYMBOL_GPL(xenbus_frontend_closed); +__printf(3, 0) static void xenbus_va_dev_error(struct xenbus_device *dev, int err, const char *fmt, va_list ap) { |