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spi: spl022: use min_t() to improve code

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Use min_t() to reduce the code in setup_dma_scatter() and improve its
readability.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Link: https://patch.msgid.link/20250815082118.586422-4-rongqianfeng@vivo.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Qianfeng Rong
2025-08-15 16:21:17 +08:00
committed by Mark Brown
parent 1bdc716023
commit 90179609ef
1 changed files with 5 additions and 8 deletions
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13
drivers/spi/spi-pl022.c
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@@ -33,6 +33,7 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
#include <linux/minmax.h>
/*
* This macro is used to define some register default values.
@@ -760,10 +761,9 @@ static void setup_dma_scatter(struct pl022 *pl022,
* we just feed in this, else we stuff in as much
* as we can.
*/
if (bytesleft < (PAGE_SIZE - offset_in_page(bufp)))
mapbytes = bytesleft;
else
mapbytes = PAGE_SIZE - offset_in_page(bufp);
mapbytes = min_t(int, bytesleft,
PAGE_SIZE - offset_in_page(bufp));
sg_set_page(sg, virt_to_page(bufp),
mapbytes, offset_in_page(bufp));
bufp += mapbytes;
@@ -775,10 +775,7 @@ static void setup_dma_scatter(struct pl022 *pl022,
} else {
/* Map the dummy buffer on every page */
for_each_sg(sgtab->sgl, sg, sgtab->nents, i) {
if (bytesleft < PAGE_SIZE)
mapbytes = bytesleft;
else
mapbytes = PAGE_SIZE;
mapbytes = min_t(int, bytesleft, PAGE_SIZE);
sg_set_page(sg, virt_to_page(pl022->dummypage),
mapbytes, 0);
bytesleft -= mapbytes;