| Message ID | 20240814192839.345523-1-visitorckw@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | spi: zynq-qspi: Replace kzalloc with kmalloc for buffer allocation | expand |
On 8/14/24 21:28, Kuan-Wei Chiu wrote: > 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; > Reviewed-by: Michal Simek <michal.simek@amd.com> Thanks, Michal
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;
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(-)