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authorJavier González <javier@cnexlabs.com>2016-07-07 09:54:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-09-02 07:06:51 +0200
commit5acdbe667cf467cefb8fc13ded0ecca58dd9a761 (patch)
treef13b473cf010f5c6b01ce80d86c21796d515a232
parentd255fffdb532caf103369a5894be942e528c3151 (diff)
lightnvm: initialize ppa_addr in dev_to_generic_addr()
commit 5389a1dfb39786df08d4f6a482bd2734b1b50e33 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--include/linux/lightnvm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 782d4e814e21..4bc4b1b13193 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -310,6 +310,7 @@ 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.
*/