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 DCC0B23D2A3; Wed, 28 Jan 2026 14:44:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769611462; cv=none; b=u3WZ2Qknspa8IAXVNNigOb1tpRPtXAwx7d31Vwu1slWfflJcZhCqyapZKldr3ntneZ3CjKncxvN7zzAgQMDnIthx9Pd9GbyhtPYJ4+HZxJb9hb33iE3jQ1avv6sxYb1FRZE+1XDEv8S7/1Fvk9wRDxYpf0jHL8O8JcyYMi5mdzA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769611462; c=relaxed/simple; bh=bvRmGgtr5iuQGtzc4Q+sLAUD5FrB7jwUNXgtISBM4Tw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FMyhQxj7NWRmdFYeDT5HtaImc7Zg/siMX6ZTMUTShfwsVbl9+lAu449b/GN2AqJp8erv8jCPvxB+5g3mbB5hmgNLspOLSmT6ts/fAUXTMURoV3U8xHNzv9IimhXXTZXmYA3wYyVfridPG/v+yj/CCRUklAS6/JxAju/RGsV5sF4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QWj/MGXn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="QWj/MGXn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9EB4C116C6; Wed, 28 Jan 2026 14:44:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1769611462; bh=bvRmGgtr5iuQGtzc4Q+sLAUD5FrB7jwUNXgtISBM4Tw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QWj/MGXn6Lmjufoszr3Db5tjPmzgh/xBYq0ZxOrSB4a0mhfHPe0QRKJV8Kd1HdRf/ vKwH7NCD5nehq3uO3wsHVr4W/ptTny2WQhKYkCUppQjhH9e2q1sr34ZcP2XLzN6IeT 2d5GqSo7ydngi9Xm/TZAmtX4P9x3Wf79SoEmy9UI= Date: Wed, 28 Jan 2026 15:44:19 +0100 From: Greg KH To: ChanSoo Shin Cc: andy@kernel.org, dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev Subject: Re: [PATCH v4] fbtft: Improve damage_range to mark only changed rows Instead of marking the entire display as dirty, calculate start_row and end_row based on off/len and mark only those rows. This improves performance for partial framebuffer updates. Message-ID: <2026012806-stained-grunt-f26a@gregkh> References: <20260128140844.949262-1-csshin9928@gmail.com> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260128140844.949262-1-csshin9928@gmail.com> On Wed, Jan 28, 2026 at 11:08:44PM +0900, ChanSoo Shin wrote: > Signed-off-by: ChanSoo Shin > --- Something went wrong with your subject line :(