From: Javier González <javier@cnexlabs.com>
Date: Thu, 7 Jul 2016 07:54:09 +0000 (+0200)
Subject: lightnvm: initialize ppa_addr in dev_to_generic_addr()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5389a1dfb39786df08d4f6a482bd2734b1b50e33;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

lightnvm: initialize ppa_addr in dev_to_generic_addr()

The ->reserved bit is not initialized when allocated on stack.
This may lead targets to misinterpret the PPA as cached.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 9c56148d6f63..cee4c8de34d5 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -385,6 +385,7 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev,
 {
 	struct ppa_addr l;
 
+	l.ppa = 0;
 	/*
 	 * (r.ppa << X offset) & X len bitmask. X eq. blk, pg, etc.
 	 */