linux-kernel - [PATCH] video: mx3fb: Allow blocking during framebuffer allocation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1387441388-10962-1-git-send-email-s.hauer@pengutronix.de>
Date:	Thu, 19 Dec 2013 09:23:08 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	linux-fbdev@...r.kernel.org
Cc:	Sascha Hauer <s.hauer@...gutronix.de>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] video: mx3fb: Allow blocking during framebuffer allocation

No need to allocate the framebuffer from the atomic pool, we are not
in interrupt context. Adding GFP_KERNEL to the framebuffer allocation
allows to use the much bigger CMA pool to allocate the framebuffer.

Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@...com>
Cc: linux-fbdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/video/mx3fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index cfdb380..c882bec 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -1263,7 +1263,7 @@ static int mx3fb_map_video_memory(struct fb_info *fbi, unsigned int mem_len,
 
 	fbi->screen_base = dma_alloc_writecombine(fbi->device,
 						  mem_len,
-						  &addr, GFP_DMA);
+						  &addr, GFP_DMA | GFP_KERNEL);
 
 	if (!fbi->screen_base) {
 		dev_err(fbi->device, "Cannot allocate %u bytes framebuffer memory\n",
-- 
1.8.5.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/