NVMe: Remove outdated comments

The head can never overrun the tail since we won't allocate enough command
IDs to let that happen.  The status codes are in sync with the spec.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index 740a9c1b81aa7744f1fd57a14263716c40804411..d4f95eb51dc13c6843c021c8bda2cd9217c3ff2e 100644 (file)
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -245,7 +245,6 @@ static int nvme_submit_cmd(struct nvme_queue *nvmeq, struct nvme_command *cmd)
 {
        unsigned long flags;
        u16 tail;
-       /* XXX: Need to check tail isn't going to overrun head */
        spin_lock_irqsave(&nvmeq->q_lock, flags);
        tail = nvmeq->sq_tail;
        memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd));

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index c46a9b7988fb3bec0d44dbcbb159744da1d53fd4..6b5a8d19daf5a68127faa0bb7b3b7025df918685 100644 (file)
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -323,7 +323,6 @@ struct nvme_command {
        };
 };
 
-/* XXX: Sync with spec */
 enum {
        NVME_SC_SUCCESS                 = 0x0,
        NVME_SC_INVALID_OPCODE          = 0x1,