This is a note to let you know that I've just added the patch titled
nvme: host: core: fix precedence of ternary operator
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
nvme-host-core-fix-precedence-of-ternary-operator.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e9a9853c23c13a37546397b61b270999fd0fb759 Mon Sep 17 00:00:00 2001
From: Ivan Bornyakov <brnkv.i1@xxxxxxxxx>
Date: Wed, 23 May 2018 17:56:11 +0300
Subject: nvme: host: core: fix precedence of ternary operator
From: Ivan Bornyakov <brnkv.i1@xxxxxxxxx>
commit e9a9853c23c13a37546397b61b270999fd0fb759 upstream.
Ternary operator have lower precedence then bitwise or, so 'cdw10' was
calculated wrong.
Signed-off-by: Ivan Bornyakov <brnkv.i1@xxxxxxxxx>
Reviewed-by: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Signed-off-by: Keith Busch <keith.busch@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/nvme/host/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1043,7 +1043,7 @@ static int nvme_pr_reserve(struct block_
static int nvme_pr_preempt(struct block_device *bdev, u64 old, u64 new,
enum pr_type type, bool abort)
{
- u32 cdw10 = nvme_pr_type(type) << 8 | abort ? 2 : 1;
+ u32 cdw10 = nvme_pr_type(type) << 8 | (abort ? 2 : 1);
return nvme_pr_command(bdev, cdw10, old, new, nvme_cmd_resv_acquire);
}
@@ -1055,7 +1055,7 @@ static int nvme_pr_clear(struct block_de
static int nvme_pr_release(struct block_device *bdev, u64 key, enum pr_type type)
{
- u32 cdw10 = nvme_pr_type(type) << 8 | key ? 1 << 3 : 0;
+ u32 cdw10 = nvme_pr_type(type) << 8 | (key ? 1 << 3 : 0);
return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_release);
}
Patches currently in stable-queue which might be from brnkv.i1@xxxxxxxxx are
queue-4.9/nvme-host-core-fix-precedence-of-ternary-operator.patch
