add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/net/sched/em_canid.c
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@@ -1,10 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * em_canid.c  Ematch rule to match CAN frames according to their CAN IDs
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- *
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- *              This program is free software; you can distribute it and/or
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- *              modify it under the terms of the GNU General Public License
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- *              as published by the Free Software Foundation; either version
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- *              2 of the License, or (at your option) any later version.
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  *
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  * Idea:       Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
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  * Copyright:  (c) 2011 Czech Technical University in Prague
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@@ -44,6 +40,7 @@
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 /**
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  * em_canid_get_id() - Extracts Can ID out of the sk_buff structure.
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+ * @skb: buffer to extract Can ID from
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  */
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 static canid_t em_canid_get_id(struct sk_buff *skb)
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 {