Hi Takashi,
On 05/06/2023 14:17, Takashi Iwai wrote:
On Mon, 05 Jun 2023 14:50:54 +0200, Stefan Binding wrote:
Hi Takashi,
On 05/06/2023 08:21, Takashi Iwai wrote:
On Thu, 25 May 2023 15:59:54 +0200, Stefan Binding wrote:
@@ -379,10 +379,10 @@ static int cs35l41_save_calibration(struct cs35l41_hda *cs35l41) /* Calibration can only be applied whilst the DSP is not running */ ret = cs35l41_apply_calibration(cs35l41,
cpu_to_be32(cl->calAmbient),cpu_to_be32(cl->calR),cpu_to_be32(cl->calStatus),cpu_to_be32(cl->calR + 1));
(__be32)cpu_to_be32(cl->calAmbient),(__be32)cpu_to_be32(cl->calR),(__be32)cpu_to_be32(cl->calStatus),(__be32)cpu_to_be32(cl->calR + 1));Do we really need those cast? Even if yes, it must be with __force prefix for the endian cast in general.
These casts were added because we found some warnings when we ran the static analyzer sparse locally. I think these warnings are very minor, and we can drop this patch if you prefer?
The warnings must be bogus, or maybe pointing to other things? The cpu_to_be32() macro itself must return a __be32 value, hence it makes no sense to add an extra cast .
If the static analysis still shows such a warning, it should be fixed differently -- either fix the analyzer or fix the cpu_to_be32() macro itself.
The changes of the argument types to __be32 are fine. I'm arguing only about those unnecessary cast.
You are correct, I double checked and the cast is not needed. I'll push up a v2.
Thanks,
Stefan
thanks,
Takashi