rtl88x2CE_WiFi_linux driver

hc

2024-05-10 cde9070d9970eef1f7ec2360586c802a16230ad8

 kernel/net/sunrpc/xprtrdma/svc_rdma.c
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@@ -73,8 +73,6 @@
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 atomic_t rdma_stat_sq_poll;
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 atomic_t rdma_stat_sq_prod;
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-struct workqueue_struct *svc_rdma_wq;
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-
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 /*
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  * This function implements reading and resetting an atomic_t stat
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  * variable through read/write to a proc file. Any write to the file
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@@ -82,8 +80,7 @@
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  * current value.
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  */
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 static int read_reset_stat(struct ctl_table *table, int write,
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-			   void __user *buffer, size_t *lenp,
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-			   loff_t *ppos)
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+			   void *buffer, size_t *lenp, loff_t *ppos)
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 {
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 	atomic_t *stat = (atomic_t *)table->data;
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@@ -105,8 +102,8 @@
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 		len -= *ppos;
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 		if (len > *lenp)
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 			len = *lenp;
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-		if (len && copy_to_user(buffer, str_buf, len))
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-			return -EFAULT;
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+		if (len)
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+			memcpy(buffer, str_buf, len);
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 		*lenp = len;
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 		*ppos += len;
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 	}
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@@ -230,14 +227,10 @@
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 void svc_rdma_cleanup(void)
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 {
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 	dprintk("SVCRDMA Module Removed, deregister RPC RDMA transport\n");
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-	destroy_workqueue(svc_rdma_wq);
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 	if (svcrdma_table_header) {
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 		unregister_sysctl_table(svcrdma_table_header);
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 		svcrdma_table_header = NULL;
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 	}
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-#if defined(CONFIG_SUNRPC_BACKCHANNEL)
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-	svc_unreg_xprt_class(&svc_rdma_bc_class);
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-#endif
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 	svc_unreg_xprt_class(&svc_rdma_class);
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 }
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@@ -249,18 +242,11 @@
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 	dprintk("\tmax_bc_requests  : %u\n", svcrdma_max_bc_requests);
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 	dprintk("\tmax_inline       : %d\n", svcrdma_max_req_size);
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-	svc_rdma_wq = alloc_workqueue("svc_rdma", 0, 0);
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-	if (!svc_rdma_wq)
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-		return -ENOMEM;
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-
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 	if (!svcrdma_table_header)
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 		svcrdma_table_header =
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 			register_sysctl_table(svcrdma_root_table);
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 	/* Register RDMA with the SVC transport switch */
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 	svc_reg_xprt_class(&svc_rdma_class);
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-#if defined(CONFIG_SUNRPC_BACKCHANNEL)
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-	svc_reg_xprt_class(&svc_rdma_bc_class);
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-#endif
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 	return 0;
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 }