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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2BE0CA0ECB for ; Mon, 11 Sep 2023 22:00:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355462AbjIKV7x (ORCPT ); Mon, 11 Sep 2023 17:59:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238790AbjIKOFI (ORCPT ); Mon, 11 Sep 2023 10:05:08 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0555CF0 for ; Mon, 11 Sep 2023 07:05:03 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42239C433C8; Mon, 11 Sep 2023 14:05:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694441103; bh=yB2kiHdc0SYAkpN8vYLLR1ZLLbOk3s3vCLD3ZkBPsy4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lLXs94JsNkFh+axNRVgVHxhNwk8YeFKzxSZVhqJNum+TeHjSon3IpwhwqsYL0H+wT CTWl8ld5O8An4EN/jv50VHrGtwKR0BoVauXrqBFUNR4tS5meO6pYysSFuDJXY0BEG0 oThuvVV6fwEXUOHLpNNP2NDn+KzW3flTqbCSBHJo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Geert Uytterhoeven , Javier Martinez Canillas , Sasha Levin Subject: [PATCH 6.5 297/739] drm/repaper: Reduce temporary buffer size in repaper_fb_dirty() Date: Mon, 11 Sep 2023 15:41:36 +0200 Message-ID: <20230911134659.426026692@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134650.921299741@linuxfoundation.org> References: <20230911134650.921299741@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.5-stable review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven [ Upstream commit fedf429e071f6dbbe7a69dfc342492e037692018 ] As the temporary buffer is no longer used to store 8-bit grayscale data, its size can be reduced to the size needed to store the monochrome bitmap data. Fixes: 24c6bedefbe71de9 ("drm/repaper: Use format helper for xrgb8888 to monochrome conversion") Signed-off-by: Geert Uytterhoeven Reviewed-by: Javier Martinez Canillas Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-6-geert@linux-m68k.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/tiny/repaper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c index c2677d081a7b6..13ae148f59b9b 100644 --- a/drivers/gpu/drm/tiny/repaper.c +++ b/drivers/gpu/drm/tiny/repaper.c @@ -533,7 +533,7 @@ static int repaper_fb_dirty(struct drm_framebuffer *fb) DRM_DEBUG("Flushing [FB:%d] st=%ums\n", fb->base.id, epd->factored_stage_time); - buf = kmalloc_array(fb->width, fb->height, GFP_KERNEL); + buf = kmalloc(fb->width * fb->height / 8, GFP_KERNEL); if (!buf) { ret = -ENOMEM; goto out_exit; -- 2.40.1