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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* drivers/net/ethernet/rocker/rocker_tlv.c - Rocker switch device driver
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* Copyright (c) 2014-2016 Jiri Pirko <jiri@mellanox.com>
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* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
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*/
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include "rocker_hw.h"
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#include "rocker_tlv.h"
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void rocker_tlv_parse(const struct rocker_tlv **tb, int maxtype,
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const char *buf, int buf_len)
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{
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const struct rocker_tlv *tlv;
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const struct rocker_tlv *head = (const struct rocker_tlv *) buf;
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int rem;
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memset(tb, 0, sizeof(struct rocker_tlv *) * (maxtype + 1));
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rocker_tlv_for_each(tlv, head, buf_len, rem) {
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u32 type = rocker_tlv_type(tlv);
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if (type > 0 && type <= maxtype)
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tb[type] = tlv;
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}
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}
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int rocker_tlv_put(struct rocker_desc_info *desc_info,
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int attrtype, int attrlen, const void *data)
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{
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int tail_room = desc_info->data_size - desc_info->tlv_size;
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int total_size = rocker_tlv_total_size(attrlen);
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struct rocker_tlv *tlv;
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if (unlikely(tail_room < total_size))
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return -EMSGSIZE;
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tlv = rocker_tlv_start(desc_info);
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desc_info->tlv_size += total_size;
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tlv->type = attrtype;
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tlv->len = rocker_tlv_attr_size(attrlen);
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memcpy(rocker_tlv_data(tlv), data, attrlen);
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memset((char *) tlv + tlv->len, 0, rocker_tlv_padlen(attrlen));
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return 0;
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}
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