[PATCH 2/3] ASoC: meson: axg-pdm: remove comparison always false warning
From: Pierre-Louis Bossart <hidden>
Date: 2020-07-07 19:23:32
Also in:
alsa-devel, linux-amlogic, lkml
Subsystem:
arm/amlogic meson soc sound drivers, sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Jerome Brunet, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
Fix W=1 warning. sound/soc/meson/axg-pdm.c: In function ‘axg_pdm_set_channel_mask’: include/linux/bits.h:26:28: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] cast the channel number to an int to avoid checking if an unsigned value is lower than zero. Signed-off-by: Pierre-Louis Bossart <redacted> --- sound/soc/meson/axg-pdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/meson/axg-pdm.c b/sound/soc/meson/axg-pdm.c
index bfd37d49a73e..8fe5b2563619 100644
--- a/sound/soc/meson/axg-pdm.c
+++ b/sound/soc/meson/axg-pdm.c@@ -206,7 +206,7 @@ static int axg_pdm_set_sample_pointer(struct axg_pdm *priv) static void axg_pdm_set_channel_mask(struct axg_pdm *priv, unsigned int channels) { - unsigned int mask = GENMASK(channels - 1, 0); + unsigned int mask = GENMASK((int)channels - 1, 0); /* Put all channel in reset */ regmap_update_bits(priv->map, PDM_CTRL,
--
2.25.1
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