From nobody Fri Dec 19 12:17:43 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5A9CD2DAFDD; Tue, 14 Oct 2025 09:12:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760433183; cv=none; b=P3IokeRDFtLLSq0tDjaSmQMgZk9BZYb5BpAcW6U/LkQ/vgeE9N9EmkqTICTqGgk+0Y74NKWZ+gU6kDv4JE5bywZsSK5UrE4exQsutawcAIlCvbCL2Ap9Eg8b9VUswEu/pmOnh12ucmvgiDvAmlMeNsNcqG27lWvwop6pA09LM5M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760433183; c=relaxed/simple; bh=z8sn68NAt+PgmEPPSA+MhaLGdC4iQ6NqOu8t5akaAwA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=TtYsY5vE2c3/4y/+Heg4NUZXWuiWUa1kxjaOWV/dZE9jp/1gUyTF9l5W/735Df+fkFWpRYsXkiZf30S6btpxUF5ieo9PdAcdXjha48NfeItRgU0yApC0CoNXf3IkVMd6rthZ2mrGV6iPNkill7nGfCRrKOxw29snRTClKEpZNjM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: f78ea74aa8dd11f0a38c85956e01ac42-20251014 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:af83a9a0-ebd0-4a87-9321-d4aed1796afd,IP:0,UR L:0,TC:0,Content:0,EDM:25,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:25 X-CID-META: VersionHash:a9d874c,CLOUDID:51336594ba71906da8c015481ffb2ede,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|850,TC:nil,Content:0|50,EDM:5,IP:nil ,URL:99|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,L ES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULS X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: f78ea74aa8dd11f0a38c85956e01ac42-20251014 X-User: xiaopei01@kylinos.cn Received: from localhost.localdomain [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 720667590; Tue, 14 Oct 2025 17:12:54 +0800 From: Pei Xiao To: jic23@kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Pei Xiao , kernel test robot Subject: [PATCH v2] iio: adc: ti_am335x_adc: Limit step_avg to valid range for gcc complains Date: Tue, 14 Oct 2025 17:12:50 +0800 Message-Id: X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" FIELD_PREP() checks that a value fits into the available bitfield, add a check for step_avg to fix gcc complains. which gcc complains about: drivers/iio/adc/ti_am335x_adc.c: In function 'tiadc_step_config': include/linux/compiler_types.h:572:38: error: call to '__compiletime_assert_491' declared with attribute error: FIELD_PREP: value too large for the field include/linux/mfd/ti_am335x_tscadc.h:58:29: note: in expansion of macro 'FIELD_PREP' #define STEPCONFIG_AVG(val) FIELD_PREP(GENMASK(4, 2), (val)) ^~~~~~~~~~ drivers/iio/adc/ti_am335x_adc.c:127:17: note: in expansion of macro 'STEPCO= NFIG_AVG' stepconfig =3D STEPCONFIG_AVG(ffs(adc_dev->step_avg[i]) - 1) Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202510102117.Jqxrw1vF-lkp@int= el.com/ Signed-off-by: Pei Xiao --- changes in v2: use '<=3D',adc_dev->step_avg[i]'s max value is STEPCONFIG_AV= G_16 --- drivers/iio/adc/ti_am335x_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_ad= c.c index 99f274adc870..a1a28584de93 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -123,7 +123,7 @@ static void tiadc_step_config(struct iio_dev *indio_dev) =20 chan =3D adc_dev->channel_line[i]; =20 - if (adc_dev->step_avg[i]) + if (adc_dev->step_avg[i] && adc_dev->step_avg[i] <=3D STEPCONFIG_AVG_16) stepconfig =3D STEPCONFIG_AVG(ffs(adc_dev->step_avg[i]) - 1) | STEPCONFIG_FIFO1; else --=20 2.25.1