[PATCH v2 0/3] ALSA: Fix compiler warnings in sound subsystem

[wangdich9700]

From: wangdicheng <wangdicheng@xxxxxxxxxx>

This series fixes three compiler warnings in the sound subsystem,
covering both logical redundancies and a potential runtime bug.

Two categories of warnings are addressed:

1. "possible condition with no effect (if == else)" -- redundant
   conditional branches that produce identical code.

2. "do_div() does a 64-by-32 division" -- use of do_div() with
   a 64-bit divisor, which silently truncates the upper 32 bits.

Changes in v2:
- Dropped "ASoC: tlv320aic32x4: Use div64_ul for division by unsigned long".
  Per David's review, parent_rate is bounded by AIC32X4_MAX_PLL_CLKIN
  (20MHz) and will never exceed 32 bits, so do_div() is fine there.
- Updated patch 3 (fsl_easrc) commit message with concrete numerical
  proof that val1 can exceed 32 bits after >> 12, and clarified that
  the truncation happens when val1 is used as a divisor.

wangdicheng (3):
  ASoC: mediatek: mt8189: Remove redundant else-if branch with identical
    body
  ALSA: sparc/dbri: Fix "possible condition with no effect" warning
  ASoC: fsl_easrc: Use div64_u64 for 64-by-64 division

 sound/soc/fsl/fsl_easrc.c                   | 2 +-
 sound/soc/mediatek/mt8189/mt8189-dai-adda.c | 2 --
 sound/sparc/dbri.c                          | 2 ++
 3 files changed, 3 insertions(+), 3 deletions(-)

-- 
2.25.1