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authorDavid Lechner <dlechner@baylibre.com>2025-07-02 08:23:00 -0500
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2025-07-13 15:36:25 +0100
commit1b0dc9385895e3084584f0069c40b111146f71f5 (patch)
treeef3349f3c1f6f93285493bfa9963876a01c886d4
parent219da3ea842a156e5808176e11db256db9798f6c (diff)
iio: adc: ad4000: don't use shift_right()
Drop use of shift_right() macro for unsigned value. The shift_right() macro is intended for signed values and is not needed for unsigned values. This was found by a static analysis tool [1]. Link: https://github.com/analogdevicesinc/linux/pull/2831/files#diff-c14a34a6492576d22e7192cc0f61ad0083190aeb627191596fe12462f0c6f21aR557 [1] Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250702-iio-adc-ad4000-don-t-use-shift_right-v1-1-041c2d6c3950@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
-rw-r--r--drivers/iio/adc/ad4000.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad4000.c b/drivers/iio/adc/ad4000.c
index 5609a7845b6f..fd3d79fca785 100644
--- a/drivers/iio/adc/ad4000.c
+++ b/drivers/iio/adc/ad4000.c
@@ -554,7 +554,7 @@ static void ad4000_fill_scale_tbl(struct ad4000_state *st,
val = mult_frac(st->vref_mv, MICRO, st->gain_milli);
/* Would multiply by NANO here but we multiplied by extra MILLI */
- tmp2 = shift_right((u64)val * MICRO, scale_bits);
+ tmp2 = (u64)val * MICRO >> scale_bits;
tmp0 = div_s64_rem(tmp2, NANO, &tmp1);
/* Store scale for when span compression is disabled */