Revert "fabrics: retry discovery log page when DNR is not set"

This reverts commit 2f27d84.

The result field is undefined for many commands and thus can have random values.
Thus we can't blindly evaluate these for all commands.

Signed-off-by: Daniel Wagner <[email protected]>

Author: dwsuse

src/nvme/fabrics.c

@@ -1051,7 +1051,6 @@ static struct nvmf_discovery_log *nvme_discovery_log(
 	int retries = 0;
 	const char *name = nvme_ctrl_get_name(args->c);
 	uint64_t genctr, numrec;
-	__u32 result;
 	int fd = nvme_ctrl_get_fd(args->c);
 	struct nvme_get_log_args log_args = {
 		.result = args->result,
@@ -1077,21 +1076,13 @@ static struct nvmf_discovery_log *nvme_discovery_log(
 		 name, retries, args->max_retries);
 	log_args.log = log;
 	log_args.len = DISCOVERY_HEADER_LEN;
-	if (!args->result)
-		log_args.result = &result;
-retry_header:
 	if (nvme_get_log_page(fd, NVME_LOG_PAGE_PDU_SIZE, &log_args)) {
 		nvme_msg(r, LOG_INFO,
 			 "%s: discover try %d/%d failed, error %d\n",
 			 name, retries, args->max_retries, errno);
-		if (*log_args.result &&
-		    !(*log_args.result & NVME_SC_DNR) &&
-		    (++retries < args->max_retries))
-			goto retry_header;
 		goto out_free_log;
 	}
 
-	retries = 0;
 	do {
 		size_t entries_size;
 
@@ -1122,9 +1113,6 @@ static struct nvmf_discovery_log *nvme_discovery_log(
 			nvme_msg(r, LOG_INFO,
 				 "%s: discover try %d/%d failed, error %d\n",
 				 name, retries, args->max_retries, errno);
-			if (*log_args.result &&
-			    !(*log_args.result & NVME_SC_DNR))
-				continue;
 			goto out_free_log;
 		}
 
@@ -1141,9 +1129,6 @@ static struct nvmf_discovery_log *nvme_discovery_log(
 			nvme_msg(r, LOG_INFO,
 				 "%s: discover try %d/%d failed, error %d\n",
 				 name, retries, args->max_retries, errno);
-			if (*log_args.result &&
-			    !(*log_args.result & NVME_SC_DNR))
-				continue;
 			goto out_free_log;
 		}
 	} while (genctr != le64_to_cpu(log->genctr) &&