Commit ebe4ab97 authored Dec 23, 2020 by Wolfram Sang Committed by Greg Kroah-Hartman Mar 17, 2021

i2c: rcar: optimize cacheline to minimize HW race condition



[ Upstream commit 25c2e0fb5fefb8d7847214cf114d94c7aad8e9ce ]

'flags' and 'io' are needed first, so they should be at the beginning of
the private struct.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent acf0610a

drivers/i2c/busses/i2c-rcar.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -117,6 +117,7 @@ enum rcar_i2c_type {
		};

		struct rcar_i2c_priv {
		u32 flags;
		void __iomem *io;
		struct i2c_adapter adap;
		struct i2c_msg *msg;
		@@ -127,7 +128,6 @@ struct rcar_i2c_priv {

		int pos;
		u32 icccr;
		u32 flags;
		u8 recovery_icmcr; /* protected by adapter lock */
		enum rcar_i2c_type devtype;
		struct i2c_client *slave;