From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 14BE51863 for ; Wed, 28 Dec 2022 15:31:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DEEBC433EF; Wed, 28 Dec 2022 15:31:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672241495; bh=gwl17Lr127rb7iMH1hZFtCHrRw2Fp0VMP1UMvnUZkAQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W7iJ4+bRnWBD2DqoxoVtUAchWb2EnXoTsbmDrcjpVsbK8uYD6ANSLdoMyocdJk2D7 SAr3TZ9bUy2A1TzPZpISRv5f8zWhOqUPVXCR3wtKPbmCh1x+3ZLsUwfON0QY8ikjB7 oaKnL3T0T9pcoBbcxlq1ZoRPlanGLjrv6eSDd3Ak= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Abhinav Kumar , Dmitry Baryshkov , Marijn Suijten , Sasha Levin Subject: [PATCH 6.0 0275/1073] drm/msm/dsi: Use DIV_ROUND_UP instead of conditional increment on modulo Date: Wed, 28 Dec 2022 15:31:03 +0100 Message-Id: <20221228144335.486633258@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Marijn Suijten [ Upstream commit 1e8196103bd02a396b45c8f6188541634a47fce2 ] This exact same math is used to compute bytes_in_slice above in dsi_update_dsc_timing(), also used to fill slice_chunk_size. Fixes: b9080324d6ca ("drm/msm/dsi: add support for dsc data") Reviewed-by: Abhinav Kumar Reviewed-by: Dmitry Baryshkov Signed-off-by: Marijn Suijten Patchwork: https://patchwork.freedesktop.org/patch/508935/ Link: https://lore.kernel.org/r/20221026182824.876933-4-marijn.suijten@somainline.org Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/dsi/dsi_host.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 1bce664a4eed..3459cac6f770 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1894,9 +1894,7 @@ static int dsi_populate_dsc_params(struct drm_dsc_config *dsc) * params are calculated */ groups_per_line = DIV_ROUND_UP(dsc->slice_width, 3); - dsc->slice_chunk_size = dsc->slice_width * dsc->bits_per_pixel / 8; - if ((dsc->slice_width * dsc->bits_per_pixel) % 8) - dsc->slice_chunk_size++; + dsc->slice_chunk_size = DIV_ROUND_UP(dsc->slice_width * dsc->bits_per_pixel, 8); /* rbs-min */ min_rate_buffer_size = dsc->rc_model_size - dsc->initial_offset + -- 2.35.1