[PATCH 6/6] staging: kpc2000: kpc_spi: remove unnecessary cast in [read|write]_reg()

Geordan Neukum gneukum1 at gmail.com
Wed Jun 5 01:09:13 UTC 2019


The kpc_spi driver unnecessarily casts from a (u64 __iomem *) to a (void
*) when invoking readq and writeq which both take a (void __iomem *) arg.
There is no need for this cast, and it actually harms us by discarding
the sparse cookie, __iomem. Make the driver stop performing this casting
operation.

Signed-off-by: Geordan Neukum <gneukum1 at gmail.com>
---
 drivers/staging/kpc2000/kpc2000_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc2000_spi.c b/drivers/staging/kpc2000/kpc2000_spi.c
index 4f517afc6239..28132e9e260d 100644
--- a/drivers/staging/kpc2000/kpc2000_spi.c
+++ b/drivers/staging/kpc2000/kpc2000_spi.c
@@ -167,7 +167,7 @@ kp_spi_read_reg(struct kp_spi_controller_state *cs, int idx)
 	if ((idx == KP_SPI_REG_CONFIG) && (cs->conf_cache >= 0)){
 		return cs->conf_cache;
 	}
-	val = readq((void*)addr);
+	val = readq(addr);
 	return val;
 }
 
@@ -176,7 +176,7 @@ kp_spi_write_reg(struct kp_spi_controller_state *cs, int idx, u64 val)
 {
 	u64 __iomem *addr = cs->base;
 	addr += idx;
-	writeq(val, (void*)addr);
+	writeq(val, addr);
 	if (idx == KP_SPI_REG_CONFIG)
 		cs->conf_cache = val;
 }
-- 
2.21.0



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