linux-kernel - [patch 5/5] [RFC] Add MMC Password Protection (lock/unlock) support V7: mmc_omap

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]

Date:	Wed, 22 Nov 2006 10:54:03 -0400
From:	Anderson Briglia <anderson.briglia@...t.org.br>
To:	"Linux-omap-open-source@...ux.omap.com" 
	<linux-omap-open-source@...ux.omap.com>
CC:	Russell King <rmk+lkml@....linux.org.uk>,
	Pierre Ossman <drzeus-list@...eus.cx>,
	Tony Lindgren <tony@...mide.com>,
	"Aguiar Carlos (EXT-INdT/Manaus)" <carlos.aguiar@...t.org.br>,
	ext David Brownell <david-b@...bell.net>,
	"Lizardo Anderson (EXT-INdT/Manaus)" <anderson.lizardo@...t.org.br>,
	linux-kernel@...r.kernel.org
Subject: [patch 5/5] [RFC] Add MMC Password Protection (lock/unlock) support
 V7: mmc_omap_dma.diff

OMAP platform specific patch.
- Adjust the frame size for DMA transfers.

Signed-off-by: Anderson Briglia <anderson.briglia <at> indt.org.br>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>

Index: linux-omap-2.6.git/drivers/mmc/omap.c
===================================================================
--- linux-omap-2.6.git.orig/drivers/mmc/omap.c	2006-11-22 09:07:25.000000000 -0400
+++ linux-omap-2.6.git/drivers/mmc/omap.c	2006-11-22 09:19:03.000000000 -0400
@@ -629,6 +629,14 @@ mmc_omap_prepare_dma(struct mmc_omap_hos

  	data_addr = host->phys_base + OMAP_MMC_REG_DATA;
  	frame = data->blksz;
+
+#ifdef CONFIG_MMC_PASSWORDS
+	/* MMC LOCK/UNLOCK: Do frame size multiple of two. This is
+	 * needed for DMA transfers to work properly, once
+	 * the block size depends on MMC password length.
+	 */
+	frame += frame&0x1;
+#endif
  	count = sg_dma_len(sg);

  	if ((data->blocks == 1) && (count > (data->blksz)))

-
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/