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authorSagi Grimberg <sagi@grimberg.me>2020-01-26 23:23:28 -0800
committerKeith Busch <kbusch@kernel.org>2020-02-04 03:00:24 +0900
commitb716e6889c95f64ba32af492461f6cc9341f3f05 (patch)
treef51aff28a48be1f1d92058d57674828f74b539d8 /drivers/nvme/target/io-cmd-bdev.c
parent4ac76436a6d07dec1c3c766f234aa787a16e8f65 (diff)
nvmet: fix dsm failure when payload does not match sgl descriptor
The host is allowed to pass the controller an sgl describing a buffer that is larger than the dsm payload itself, allow it when executing dsm. Reported-by: Dakshaja Uppalapati <dakshaja@chelsio.com> Reviewed-by: Christoph Hellwig <hch@lst.de>, Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme/target/io-cmd-bdev.c')
-rw-r--r--drivers/nvme/target/io-cmd-bdev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index b6fca0e421ef..ea0e596be15d 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -280,7 +280,7 @@ static void nvmet_bdev_execute_discard(struct nvmet_req *req)
static void nvmet_bdev_execute_dsm(struct nvmet_req *req)
{
- if (!nvmet_check_data_len(req, nvmet_dsm_len(req)))
+ if (!nvmet_check_data_len_lte(req, nvmet_dsm_len(req)))
return;
switch (le32_to_cpu(req->cmd->dsm.attributes)) {