From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BFE2CC4360C for ; Wed, 12 May 2021 18:55:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 90036611BD for ; Wed, 12 May 2021 18:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356557AbhELStu (ORCPT ); Wed, 12 May 2021 14:49:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:35700 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243756AbhELQmB (ORCPT ); Wed, 12 May 2021 12:42:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 705BE61959; Wed, 12 May 2021 16:06:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835590; bh=OPilQ3elZv6OQHFnUhl9jytN63+Xh4iDZ11ez+SXlrg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RXk3Chtlvgb9MX7McLagO5Hhjp+7bidcZ/P5OPokWV1R7JzuBYlKkkvT9P7cB6aO2 fvfCT4E43IoKhL4OoFRTD/oPbHgGfxQpH795SPzRil0Qlk8Sw7+LJJ90KZ2CogQLtT qwhnJT+k9qZTSTClu0mlsHPO2g+4pB9G8BV9/xKI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans Verkuil , Kieran Bingham , Laurent Pinchart , Jacopo Mondi , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.12 404/677] media: i2c: rdamc21: Fix warning on u8 cast Date: Wed, 12 May 2021 16:47:30 +0200 Message-Id: <20210512144850.756268035@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jacopo Mondi [ Upstream commit 5f58ac04f36e32507d8f60fd47266ae2a60a2fa8 ] Sparse reports a warning on a cast to u8 of a 16 bits constant. drivers/media/i2c/rdacm21.c:348:62: warning: cast truncates bits from constant value (300a becomes a) Even if the behaviour is intended, silence the sparse warning replacing the cast with a bitwise & operation. Fixes: a59f853b3b4b ("media: i2c: Add driver for RDACM21 camera module") Reported-by: Hans Verkuil Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Jacopo Mondi Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/i2c/rdacm21.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c index dcc21515e5a4..179d107f494c 100644 --- a/drivers/media/i2c/rdacm21.c +++ b/drivers/media/i2c/rdacm21.c @@ -345,7 +345,7 @@ static int ov10640_initialize(struct rdacm21_device *dev) /* Read OV10640 ID to test communications. */ ov490_write_reg(dev, OV490_SCCB_SLAVE0_DIR, OV490_SCCB_SLAVE_READ); ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_HIGH, OV10640_CHIP_ID >> 8); - ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_LOW, (u8)OV10640_CHIP_ID); + ov490_write_reg(dev, OV490_SCCB_SLAVE0_ADDR_LOW, OV10640_CHIP_ID & 0xff); /* Trigger SCCB slave transaction and give it some time to complete. */ ov490_write_reg(dev, OV490_HOST_CMD, OV490_HOST_CMD_TRIGGER); -- 2.30.2