change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/xen/xenbus/xenbus_dev_frontend.c
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@@ -128,7 +128,7 @@
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 {
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 	struct xenbus_file_priv *u = filp->private_data;
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 	struct read_buffer *rb;
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-	unsigned i;
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+	ssize_t i;
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 	int ret;
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 	mutex_lock(&u->reply_mutex);
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@@ -148,7 +148,7 @@
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 	rb = list_entry(u->read_buffers.next, struct read_buffer, list);
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 	i = 0;
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 	while (i < len) {
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-		unsigned sz = min((unsigned)len - i, rb->len - rb->cons);
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+		size_t sz = min_t(size_t, len - i, rb->len - rb->cons);
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 		ret = copy_to_user(ubuf + i, &rb->msg[rb->cons], sz);
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@@ -498,7 +498,6 @@
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 	struct watch_adapter *watch;
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 	char *path, *token;
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 	int err, rc;
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-	LIST_HEAD(staging_q);
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 	path = u->u.buffer + sizeof(u->u.msg);
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 	token = memchr(path, 0, u->u.msg.len);
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@@ -556,7 +555,6 @@
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 	uint32_t msg_type;
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 	int rc = len;
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 	int ret;
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-	LIST_HEAD(staging_q);
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 	/*
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 	 * We're expecting usermode to be writing properly formed