On Mon, 06 Aug 2018 20:37:53 +0200, Pierre-Louis Bossart wrote:
On 8/1/18 6:00 AM, Takashi Iwai wrote:
On Wed, 01 Aug 2018 12:47:42 +0200, Colin King wrote:
From: Colin Ian King colin.king@canonical.com
Variable cfg_val is being assigned but is never used hence it is redundant and can be removed.
Cleans up clang warning: warning: variable 'cfg_val' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King colin.king@canonical.com
sound/x86/intel_hdmi_audio.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c index edc9f5a34eff..fa7dca5a68c8 100644 --- a/sound/x86/intel_hdmi_audio.c +++ b/sound/x86/intel_hdmi_audio.c @@ -290,7 +290,6 @@ static void had_reset_audio(struct snd_intelhad *intelhaddata) static int had_prog_status_reg(struct snd_pcm_substream *substream, struct snd_intelhad *intelhaddata) {
- union aud_cfg cfg_val = {.regval = 0}; union aud_ch_status_0 ch_stat0 = {.regval = 0}; union aud_ch_status_1 ch_stat1 = {.regval = 0}; @@ -298,7 +297,6 @@ static int had_prog_status_reg(struct
snd_pcm_substream *substream, IEC958_AES0_NONAUDIO) >> 1; ch_stat0.regx.clk_acc = (intelhaddata->aes_bits & IEC958_AES3_CON_CLOCK) >> 4;
- cfg_val.regx.val_bit = ch_stat0.regx.lpcm_id;
Actually this made me wonder what is the definition of val_bit. It seems always 1 in the current code after the commit 964ca8083c02. Pierre?
This val_bit is only there for debug/test, it should be set to one by default and has nothing to do with the lpcm_id. This variable was set even in patches before upstream submission and was never needed, I guess it must be a 9-yr old issue. Good catch!
Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
Good to hear, applied the patch now.
BTW looking at the structures in intel_hdmi_lpe_audio.h, the field format:3 in audio_ch_status_0 is misleading at best, it should be the emphasis if I look at the SPDIF/AES docs. It's not used but I'll have to relook at all this when I find some time... We should really set the registers to mirror what the aes_bits are, not just the non_audio and clock accuracy fields.
A fix patch is always welcome ;)
Takashi