If an admin interrupt is missed, admin_pend_isr may stay set and trigger admin reply processing even when no admin IOs are pending. Clearing/Resetting it in the admin completion path prevents this.
Fixes: ca41929b2ed5 ("scsi: mpi3mr: Check admin reply queue from Watchdog") Cc: stable@vger.kernel.org Signed-off-by: Sathya Prakash sathya.prakash@broadcom.com Signed-off-by: Ranjan Kumar ranjan.kumar@broadcom.com --- drivers/scsi/mpi3mr/mpi3mr_fw.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index d6e402aacb2a..003e1f7005c4 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -451,6 +451,7 @@ int mpi3mr_process_admin_reply_q(struct mpi3mr_ioc *mrioc) return 0; }
+ atomic_set(&mrioc->admin_pend_isr, 0); reply_desc = (struct mpi3_default_reply_descriptor *)mrioc->admin_reply_base + admin_reply_ci;
@@ -2925,6 +2926,7 @@ static int mpi3mr_setup_admin_qpair(struct mpi3mr_ioc *mrioc) mrioc->admin_reply_ci = 0; mrioc->admin_reply_ephase = 1; atomic_set(&mrioc->admin_reply_q_in_use, 0); + atomic_set(&mrioc->admin_pend_isr, 0);
if (!mrioc->admin_req_base) { mrioc->admin_req_base = dma_alloc_coherent(&mrioc->pdev->dev, @@ -4653,6 +4655,7 @@ void mpi3mr_memset_buffers(struct mpi3mr_ioc *mrioc) if (mrioc->admin_reply_base) memset(mrioc->admin_reply_base, 0, mrioc->admin_reply_q_sz); atomic_set(&mrioc->admin_reply_q_in_use, 0); + atomic_set(&mrioc->admin_pend_isr, 0);
if (mrioc->init_cmds.reply) { memset(mrioc->init_cmds.reply, 0, sizeof(*mrioc->init_cmds.reply));