nvme: define NVME_NSID_ALL

Define the constant "0xffffffff" (used as nsid for all namespaces)
as NVME_NSID_ALL.
Signed-off-by: Arnav Dawn <a.dawn@samsung.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

drivers/nvme/host/core.c

@@ -312,7 +312,7 @@ static int nvme_toggle_streams(struct nvme_ctrl *ctrl, bool enable)
 	memset(&c, 0, sizeof(c));
 
 	c.directive.opcode = nvme_admin_directive_send;
-	c.directive.nsid = cpu_to_le32(0xffffffff);
+	c.directive.nsid = cpu_to_le32(NVME_NSID_ALL);
 	c.directive.doper = NVME_DIR_SND_ID_OP_ENABLE;
 	c.directive.dtype = NVME_DIR_IDENTIFY;
 	c.directive.tdtype = NVME_DIR_STREAMS;
@@ -362,7 +362,7 @@ static int nvme_configure_directives(struct nvme_ctrl *ctrl)
 	if (ret)
 		return ret;
 
-	ret = nvme_get_stream_params(ctrl, &s, 0xffffffff);
+	ret = nvme_get_stream_params(ctrl, &s, NVME_NSID_ALL);
 	if (ret)
 		return ret;
 
@@ -2563,7 +2563,7 @@ static void nvme_get_fw_slot_info(struct nvme_ctrl *ctrl)
 		return;
 
 	c.common.opcode = nvme_admin_get_log_page;
-	c.common.nsid = cpu_to_le32(0xffffffff);
+	c.common.nsid = cpu_to_le32(NVME_NSID_ALL);
 	c.common.cdw10[0] = nvme_get_log_dw10(NVME_LOG_FW_SLOT, sizeof(*log));
 
 	if (!nvme_submit_sync_cmd(ctrl->admin_q, &c, log, sizeof(*log)))

include/linux/nvme.h

@@ -32,6 +32,8 @@
 
 #define NVME_RDMA_IP_PORT	4420
 
+#define NVME_NSID_ALL		0xffffffff
+
 enum nvme_subsys_type {
 	NVME_NQN_DISC	= 1,		/* Discovery type target subsystem */
 	NVME_NQN_NVME	= 2,		/* NVME type target subsystem */