From: Kuan-Wei Chiu <visitorckw@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: Michal Simek <michal.simek@amd.com>,
Ching-Chun Huang <jserv@ccns.ncku.edu.tw>,
linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Kuan-Wei Chiu <visitorckw@gmail.com>
Subject: [PATCH] spi: zynq-qspi: Replace kzalloc with kmalloc for buffer allocation
Date: Thu, 15 Aug 2024 03:28:39 +0800 [thread overview]
Message-ID: <20240814192839.345523-1-visitorckw@gmail.com> (raw)
In zynq_qspi_exec_mem_op(), the temporary buffer is allocated with
kzalloc and then immediately initialized using memset to 0xff. To
optimize this, replace kzalloc with kmalloc, as the zeroing operation
is redundant and unnecessary.
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
Note: Build test only.
drivers/spi/spi-zynq-qspi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c
index d6325c6be3d4..b67455bda972 100644
--- a/drivers/spi/spi-zynq-qspi.c
+++ b/drivers/spi/spi-zynq-qspi.c
@@ -569,7 +569,7 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
}
if (op->dummy.nbytes) {
- tmpbuf = kzalloc(op->dummy.nbytes, GFP_KERNEL);
+ tmpbuf = kmalloc(op->dummy.nbytes, GFP_KERNEL);
if (!tmpbuf)
return -ENOMEM;
--
2.34.1
next reply other threads:[~2024-08-14 19:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-14 19:28 Kuan-Wei Chiu [this message]
2024-09-02 8:52 ` Michal Simek
2024-09-03 11:36 ` Mark Brown
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