staging/rdma/hfi1: Add comment for spinlock_t definition

Add comments describing the spinlock for spinlock_t definitions to
fix checkpatch check:
CHECK: spinlock_t definition without comment

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/staging/rdma/hfi1/hfi.h b/drivers/staging/rdma/hfi1/hfi.h
index 805535e..774d8ff 100644 (file)
--- a/drivers/staging/rdma/hfi1/hfi.h
+++ b/drivers/staging/rdma/hfi1/hfi.h
@@ -313,6 +313,7 @@ struct hfi1_ctxtdata {
         */
        struct task_struct *progress;
        struct list_head sdma_queues;
+       /* protect sdma queues */
        spinlock_t sdma_qlock;
 
        /* Is ASPM interrupt supported for this context */
@@ -380,6 +381,7 @@ struct hfi1_snoop_data {
        int mode_flag;
        struct cdev cdev;
        struct device *class_dev;
+       /* protect snoop data */
        spinlock_t snoop_lock;
        struct list_head queue;
        wait_queue_head_t waitq;
@@ -561,6 +563,7 @@ enum {
 };
 
 struct vl_arb_cache {
+       /* protect vl arb cache */
        spinlock_t lock;
        struct ib_vl_weight_elem table[VL_ARB_TABLE_SIZE];
 };

diff --git a/drivers/staging/rdma/hfi1/qsfp.h b/drivers/staging/rdma/hfi1/qsfp.h
index 9f6e2f3..c391750 100644 (file)
--- a/drivers/staging/rdma/hfi1/qsfp.h
+++ b/drivers/staging/rdma/hfi1/qsfp.h
@@ -215,6 +215,7 @@ struct qsfp_data {
        struct hfi1_pportdata *ppd;
        struct work_struct qsfp_work;
        u8 cache[QSFP_MAX_NUM_PAGES * 128];
+       /* protect qsfp data */
        spinlock_t qsfp_lock;
        u8 check_interrupt_flags;
        u8 reset_needed;

diff --git a/drivers/staging/rdma/hfi1/sdma.h b/drivers/staging/rdma/hfi1/sdma.h
index 0c5f501..5aec18b 100644 (file)
--- a/drivers/staging/rdma/hfi1/sdma.h
+++ b/drivers/staging/rdma/hfi1/sdma.h
@@ -412,6 +412,7 @@ struct sdma_engine {
        u32                   progress_check_head;
        /* private: */
        struct work_struct flush_worker;
+       /* protect flush list */
        spinlock_t flushlist_lock;
        /* private: */
        struct list_head flushlist;