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Message-ID: <20251013095620.1111061-1-chenhuacai@loongson.cn>
Date: Mon, 13 Oct 2025 17:56:20 +0800
From: Huacai Chen <chenhuacai@...ngson.cn>
To: Huacai Chen <chenhuacai@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-mm@...ck.org,
	Christoph Hellwig <hch@....de>,
	Jens Axboe <axboe@...nel.dk>,
	Hannes Reinecke <hare@...e.de>,
	John Garry <john.g.garry@...cle.com>,
	Johannes Thumshirn <johannes.thumshirn@....com>,
	linux-kernel@...r.kernel.org,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH] mm: Remove the BOUNCE config option

Commit eeadd68e2a5f6bfe0bf10 ("block: remove bounce buffering support")
remove block/bounce.c but left the BOUNCE config option. Now this option
has no users, so remove it.

Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
---
 mm/Kconfig | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 0e26f4fc8717..e47321051d76 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -695,15 +695,6 @@ config PCP_BATCH_SCALE_MAX
 config PHYS_ADDR_T_64BIT
 	def_bool 64BIT
 
-config BOUNCE
-	bool "Enable bounce buffers"
-	default y
-	depends on BLOCK && MMU && HIGHMEM
-	help
-	  Enable bounce buffers for devices that cannot access the full range of
-	  memory available to the CPU. Enabled by default when HIGHMEM is
-	  selected, but you may say n to override this.
-
 config MMU_NOTIFIER
 	bool
 	select INTERVAL_TREE
-- 
2.47.3


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