add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/usb/gadget/function/u_ether_configfs.h
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@@ -1,4 +1,4 @@
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-// SPDX-License-Identifier: GPL-2.0
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+/* SPDX-License-Identifier: GPL-2.0 */
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 /*
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  * u_ether_configfs.h
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  *
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@@ -7,7 +7,7 @@
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  * Copyright (c) 2013 Samsung Electronics Co., Ltd.
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  *		http://www.samsung.com
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  *
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- * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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+ * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
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  */
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 #ifndef __U_ETHER_CONFIGFS_H
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@@ -148,7 +148,20 @@
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 		return ret;						\
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 	}								\
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 									\
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-	CONFIGFS_ATTR_RO(_f_##_opts_, ifname)
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+	static ssize_t _f_##_opts_ifname_store(struct config_item *item, \
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+					       const char *page, size_t len)\
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+	{								\
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+		struct f_##_f_##_opts *opts = to_f_##_f_##_opts(item);	\
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+		int ret = -EBUSY;					\
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+									\
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+		mutex_lock(&opts->lock);				\
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+		if (!opts->refcnt)					\
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+			ret = gether_set_ifname(opts->net, page, len);	\
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+		mutex_unlock(&opts->lock);				\
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+		return ret ?: len;					\
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+	}								\
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+									\
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+	CONFIGFS_ATTR(_f_##_opts_, ifname)
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 #define USB_ETHER_CONFIGFS_ITEM_ATTR_U8_RW(_f_, _n_)			\
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 	static ssize_t _f_##_opts_##_n_##_show(struct config_item *item,\