git: d655d4f1065e - stable/13 - rk_i2c_drain_rx: remove useless arithmetic manipulations

The branch stable/13 has been updated by avg:

URL: https://cgit.FreeBSD.org/src/commit/?id=d655d4f1065e649f2aa748089849cf41a61de3b2

commit d655d4f1065e649f2aa748089849cf41a61de3b2
Author:     Andriy Gapon <avg@FreeBSD.org>
AuthorDate: 2021-12-15 08:42:23 +0000
Commit:     Andriy Gapon <avg@FreeBSD.org>
CommitDate: 2021-12-22 06:49:15 +0000

    rk_i2c_drain_rx: remove useless arithmetic manipulations
    
    When i % 4 == 0 the result of (i / 4) * 4 is always i.
    
    (cherry picked from commit ede576831b818c78d23a9600932e13e47b8fd745)
---
 sys/arm64/rockchip/rk_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/arm64/rockchip/rk_i2c.c b/sys/arm64/rockchip/rk_i2c.c
index 50c968d687bd..026c731af4d4 100644
--- a/sys/arm64/rockchip/rk_i2c.c
+++ b/sys/arm64/rockchip/rk_i2c.c
@@ -265,7 +265,7 @@ rk_i2c_drain_rx(struct rk_i2c_softc *sc)
 
 	for (i = 0; i < len; i++) {
 		if (i % 4 == 0)
-			buf32 = RK_I2C_READ(sc, RK_I2C_RXDATA_BASE + (i / 4) * 4);
+			buf32 = RK_I2C_READ(sc, RK_I2C_RXDATA_BASE + i);
 
 		buf8 = (buf32 >> ((i % 4) * 8)) & 0xFF;
 		sc->msg->buf[sc->cnt++] = buf8;