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From: Jisheng Zhang <jszhang@kernel.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Frank Li <Frank.Li@nxp.com>
Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] i3c: dw: make struct dw_i3c_cmd smaller
Date: Thu, 13 Aug 2026 12:46:03 +0800	[thread overview]
Message-ID: <20260813044603.22425-1-jszhang@kernel.org> (raw)

The dw_i3c_cmd is dynamically allocated, make it smaller. For example
on 64bit platforms, we reduce the size from 48 bytes to 32 bytes.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 drivers/i3c/master/dw-i3c-master.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 6ba84a97765f..d6f84f0f4c2d 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -247,10 +247,10 @@ struct dw_i3c_cmd {
 	u32 cmd_lo;
 	u32 cmd_hi;
 	u16 tx_len;
-	const void *tx_buf;
 	u16 rx_len;
-	void *rx_buf;
 	u8 error;
+	const void *tx_buf;
+	void *rx_buf;
 };
 
 struct dw_i3c_xfer {
-- 
2.51.0


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WARNING: multiple messages have this Message-ID (diff)
From: Jisheng Zhang <jszhang@kernel.org>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Frank Li <Frank.Li@nxp.com>
Cc: linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] i3c: dw: make struct dw_i3c_cmd smaller
Date: Thu, 13 Aug 2026 12:46:03 +0800	[thread overview]
Message-ID: <20260813044603.22425-1-jszhang@kernel.org> (raw)

The dw_i3c_cmd is dynamically allocated, make it smaller. For example
on 64bit platforms, we reduce the size from 48 bytes to 32 bytes.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 drivers/i3c/master/dw-i3c-master.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 6ba84a97765f..d6f84f0f4c2d 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -247,10 +247,10 @@ struct dw_i3c_cmd {
 	u32 cmd_lo;
 	u32 cmd_hi;
 	u16 tx_len;
-	const void *tx_buf;
 	u16 rx_len;
-	void *rx_buf;
 	u8 error;
+	const void *tx_buf;
+	void *rx_buf;
 };
 
 struct dw_i3c_xfer {
-- 
2.51.0


             reply	other threads:[~2026-08-13  5:05 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-13  4:46 Jisheng Zhang [this message]
2026-08-13  4:46 ` [PATCH] i3c: dw: make struct dw_i3c_cmd smaller Jisheng Zhang

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