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drivers/macintosh/smu.c: Mark expected switch fall-through

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Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: powerpc):

  drivers/macintosh/smu.c: In function 'smu_queue_i2c':
  drivers/macintosh/smu.c:854:21: warning: this statement may fall through [-Wimplicit-fallthrough=]
     cmd->info.devaddr &= 0xfe;
     ~~~~~~~~~~~~~~~~~~^~~~~~~
  drivers/macintosh/smu.c:855:2: note: here
    case SMU_I2C_TRANSFER_STDSUB:
    ^~~~

Fixes: 0365ba7fb1 ("[PATCH] ppc64: SMU driver update & i2c support")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190730143704.060a2606@canb.auug.org.au
This commit is contained in:
Stephen Rothwell 2019-07-30 14:37:04 +10:00 committed by Michael Ellerman
parent 7db57e7758
commit 7440ea8b2a
1 changed files with 1 additions and 0 deletions
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drivers/macintosh/smu.c
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@ -852,6 +852,7 @@ int smu_queue_i2c(struct smu_i2c_cmd *cmd)
break;
case SMU_I2C_TRANSFER_COMBINED:
cmd->info.devaddr &= 0xfe;
/* fall through */
case SMU_I2C_TRANSFER_STDSUB:
if (cmd->info.sublen > 3)
return -EINVAL;