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From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: linux-i3c@lists.infradead.org
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Jarkko Nikula <jarkko.nikula@linux.intel.com>
Subject: [PATCH 2/4] i3c: mipi-i3c-hci: Do not overallocate transfers in hci_cmd_v1_daa()
Date: Thu,  9 Nov 2023 15:37:06 +0200	[thread overview]
Message-ID: <20231109133708.653950-3-jarkko.nikula@linux.intel.com> (raw)
In-Reply-To: <20231109133708.653950-1-jarkko.nikula@linux.intel.com>

Function hci_cmd_v1_daa() uses only single transfer at a time so no need
to allocate two transfers and access can be simplified.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
 drivers/i3c/master/mipi-i3c-hci/cmd_v1.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
index 2b2323aa6714..31f03cb22489 100644
--- a/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
+++ b/drivers/i3c/master/mipi-i3c-hci/cmd_v1.c
@@ -298,7 +298,7 @@ static int hci_cmd_v1_daa(struct i3c_hci *hci)
 	unsigned int dcr, bcr;
 	DECLARE_COMPLETION_ONSTACK(done);
 
-	xfer = hci_alloc_xfer(2);
+	xfer = hci_alloc_xfer(1);
 	if (!xfer)
 		return -ENOMEM;
 
@@ -339,12 +339,12 @@ static int hci_cmd_v1_daa(struct i3c_hci *hci)
 			ret = -ETIME;
 			break;
 		}
-		if (RESP_STATUS(xfer[0].response) == RESP_ERR_NACK &&
+		if (RESP_STATUS(xfer->response) == RESP_ERR_NACK &&
 		    RESP_DATA_LENGTH(xfer->response) == 1) {
 			ret = 0;  /* no more devices to be assigned */
 			break;
 		}
-		if (RESP_STATUS(xfer[0].response) != RESP_SUCCESS) {
+		if (RESP_STATUS(xfer->response) != RESP_SUCCESS) {
 			ret = -EIO;
 			break;
 		}
-- 
2.42.0


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  parent reply	other threads:[~2023-11-09 13:38 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-09 13:37 [PATCH 0/4] i3c: mipi-i3c-hci: Functional update Jarkko Nikula
2023-11-09 13:37 ` [PATCH 1/4] i3c: mipi-i3c-hci: Report NACK response from CCC command to core Jarkko Nikula
2023-11-09 13:37 ` Jarkko Nikula [this message]
2023-11-09 13:37 ` [PATCH 3/4] i3c: mipi-i3c-hci: Handle I3C address header error in hci_cmd_v1_daa() Jarkko Nikula
2023-11-09 13:37 ` [PATCH 4/4] i3c: mipi-i3c-hci: Add DMA bounce buffer for private transfers Jarkko Nikula
2023-11-16 22:39 ` [PATCH 0/4] i3c: mipi-i3c-hci: Functional update Alexandre Belloni

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