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Tue, 26 Aug 2025 08:33:59 +0000 Date: Tue, 26 Aug 2025 10:33:58 +0200 Message-ID: <87tt1u32ix.wl-tiwai@suse.de> From: Takashi Iwai To: Shenghao Ding Cc: , , <13564923607@139.com>, <13916275206@139.com>, , , , , Subject: Re: [PATCH v1] ALSA: hda/tas2781: Fix EFI name for calibration beginning with 1 instead of 0 In-Reply-To: <20250822135043.517-1-shenghao-ding@ti.com> References: <20250822135043.517-1-shenghao-ding@ti.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Spamd-Result: default: False [-3.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_RATELIMITED(0.00)[rspamd.com]; 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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Fri, 22 Aug 2025 15:50:42 +0200, Shenghao Ding wrote: > > A bug reported by one of my customers that EFI name beginning with 0 > instead of 1, and code clean for the string checking. > > Fixes: 4fe238513407 ("ALSA: hda/tas2781: Move and unified the calibrated-data getting function for SPI and I2C into the tas2781_hda lib") > Signed-off-by: Shenghao Ding > > --- > v1: > - Fix EFI name beginning with 1 instead of 0 > - Code clean for the string checking > - Add extra comments on EFI name for calibration > - Remove an extra space > --- > sound/hda/codecs/side-codecs/tas2781_hda_i2c.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c > index ed7771ab9475..fecd5eac739b 100644 > --- a/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c > +++ b/sound/hda/codecs/side-codecs/tas2781_hda_i2c.c > @@ -340,16 +340,17 @@ static int tas2563_save_calibration(struct tas2781_hda *h) > data[offset] = i; > offset++; > for (j = 0; j < TASDEV_CALIB_N; ++j) { > - ret = snprintf(var8, sizeof(var8), vars[j], i); > + /* EFI name for calibration started with 1, not 0 */ > + ret = snprintf(var8, sizeof(var8), vars[j], i + 1); > > - if (ret < 0 || ret >= sizeof(var8) - 1) { > + if (ret != strlen(var8)) { This doesn't look like a code "cleanup". Calling strlen() is just an unneeded (but significant) overhead. Please concentrate only on the correction for now. thanks, Takashi