eMMC: Don't initialize partitions on RPMB flagged areas (Closes: #782038)

svn path=/dists/sid/linux/; revision=22483

debian/changelog

@@ -196,6 +196,7 @@ linux (3.16.7-ckt9-1) UNRELEASED; urgency=medium
     g4x/vlv/chv (Closes: #775217)
   * HID: thingm: fix workqueue race on remove (Closes: #780055)
   * [x86] Disable X86_VERBOSE_BOOTUP (Closes: #781953)
+  * eMMC: Don't initialize partitions on RPMB flagged areas (Closes: #782038)
 
  -- Ian Campbell <ijc@debian.org>  Wed, 18 Mar 2015 21:07:15 +0000
 

debian/patches/debian/emmc-don-t-initialize-partitions-on-rpmb-flagged-areas.patch

@@ -0,0 +1,27 @@
+From: Nell Hardcastle <nell@dev-nell.com>
+Date: Thu, 29 May 2014 22:06:50 -0700
+Subject: [PATCH] eMMC: Don't initialize partitions on RPMB flagged areas.
+Origin: https://dev-nell.com/rpmb-emmc-errors-under-linux.html
+Bug-Debian: https://bugs.debian.org/782038
+
+Prevents a lot of pointless hanging at boot on some devices.
+---
+[bwh: An RPMB is unlikely to be useful on any platform supported by a Debian
+kernel, so I think it's best to hide them for now.  Once we are confident
+that userland will ignore them or the kernel does a better job of avoiding
+hanging reads, we can drop this patch.]
+
+ drivers/mmc/card/block.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mmc/card/block.c
++++ b/drivers/mmc/card/block.c
+@@ -2258,7 +2258,7 @@ static int mmc_blk_alloc_parts(struct mm
+ 		return 0;
+ 
+ 	for (idx = 0; idx < card->nr_parts; idx++) {
+-		if (card->part[idx].size) {
++		if (card->part[idx].size && !(card->part[idx].area_type & MMC_BLK_DATA_AREA_RPMB)) {
+ 			ret = mmc_blk_alloc_part(card, md,
+ 				card->part[idx].part_cfg,
+ 				card->part[idx].size >> 9,

debian/patches/series

@@ -573,3 +573,4 @@ features/all/psmouse/input-psmouse-disable-changing-resolution-rate-scale.patch
 features/all/psmouse/input-psmouse-disable-palm-detection-in-the-focaltec.patch
 bugfix/x86/drm-i915-add-limited-color-range-readout-for-hdmi-dp.patch
 bugfix/all/hid-thingm-fix-workqueue-race-on-remove.patch
+debian/emmc-don-t-initialize-partitions-on-rpmb-flagged-areas.patch