6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christoph Hellwig <hch@xxxxxx>
[ Upstream commit 44059790a5cb9258ae6137387e4c39b717fd2ced ]
Nothing in kfifo.h directly needs dma-mapping.h, only two macros
use DMA_MAPPING_ERROR when actually instantiated. Drop the
dma-mapping.h include to reduce include bloat.
Add an explicity <linux/io.h> include to drivers/mailbox/omap-mailbox.c
as that file uses __raw_readl and __raw_writel through a complicated
include chain involving <linux/dma-mapping.h>
Fixes: d52b761e4b1a ("kfifo: add kfifo_dma_out_prepare_mapped()")
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Link: https://lore.kernel.org/r/20241023055317.313234-1-hch@xxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mailbox/omap-mailbox.c | 1 +
include/linux/kfifo.h | 1 -
samples/kfifo/dma-example.c | 1 +
3 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index 6797770474a55..680243751d625 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -15,6 +15,7 @@
#include <linux/slab.h>
#include <linux/kfifo.h>
#include <linux/err.h>
+#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 564868bdce898..fd743d4c4b4bd 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -37,7 +37,6 @@
*/
#include <linux/array_size.h>
-#include <linux/dma-mapping.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/types.h>
diff --git a/samples/kfifo/dma-example.c b/samples/kfifo/dma-example.c
index 48df719dac8c6..8076ac410161a 100644
--- a/samples/kfifo/dma-example.c
+++ b/samples/kfifo/dma-example.c
@@ -9,6 +9,7 @@
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
+#include <linux/dma-mapping.h>
/*
* This module shows how to handle fifo dma operations.
--
2.43.0
