From: Tejun Heo <tj@kernel.org>
Date: Wed, 29 Apr 2026 19:44:16 +0000 (-1000)
Subject: workqueue: Annotate alloc_workqueue_va() with __printf(1, 0)
X-Git-Tag: v7.1-rc3~35^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20e81c64c905bd765e69ef07920d2b1130dc79b6;p=thirdparty%2Fkernel%2Flinux.git

workqueue: Annotate alloc_workqueue_va() with __printf(1, 0)

alloc_workqueue_va() forwards its va_list to __alloc_workqueue() which
ultimately feeds vsnprintf(). __alloc_workqueue() already carries
__printf(1, 0); the new wrapper needs the same annotation so format
string checking propagates through the forwarding.

Fixes: 0de4cb473aed ("workqueue: fix devm_alloc_workqueue() va_list misuse")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604300347.2LgXyteh-lkp@intel.com/
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 24d0265191d4..3d2e3b2ec528 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5906,6 +5906,7 @@ err_destroy:
 	return NULL;
 }
 
+__printf(1, 0)
 static struct workqueue_struct *alloc_workqueue_va(const char *fmt,
 						   unsigned int flags,
 						   int max_active,