git: 01bb12ee7193 - stable/15 - linuxkpi: Add WARN_RATELIMIT()

The branch stable/15 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=01bb12ee7193861f9026d941097eb6c239c92fe3

commit 01bb12ee7193861f9026d941097eb6c239c92fe3
Author:     Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
AuthorDate: 2025-08-12 23:14:52 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2026-04-22 20:56:57 +0000

    linuxkpi: Add WARN_RATELIMIT()
    
    The i915 DRM driver started to use it in Linux 6.10.
    
    Reviewed by:    bz, christos
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D54493
    
    (cherry picked from commit 3942e85b992138056841cd7c96ea20436a66b740)
---
 sys/compat/linuxkpi/common/include/linux/ratelimit.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/ratelimit.h b/sys/compat/linuxkpi/common/include/linux/ratelimit.h
index 9585b4b994d7..fdef57c7882d 100644
--- a/sys/compat/linuxkpi/common/include/linux/ratelimit.h
+++ b/sys/compat/linuxkpi/common/include/linux/ratelimit.h
@@ -14,4 +14,11 @@ struct ratelimit_state {
 #define ratelimit_state_init(x, y, z)
 #define ratelimit_set_flags(x, y)
 
+#define	WARN_RATELIMIT(condition, ...) ({		\
+	bool __ret_warn_on = (condition);		\
+	if (unlikely(__ret_warn_on))			\
+		pr_warn_ratelimited(__VA_ARGS__);	\
+	unlikely(__ret_warn_on);			\
+})
+
 #endif