d8b1f4193e
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220216194935.GA904103@embeddedor
32 lines
707 B
C
32 lines
707 B
C
// SPDX-License-Identifier: ISC
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/*
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* Copyright (c) 2019 Broadcom
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*/
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#ifndef __BRCMF_XTLV_H
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#define __BRCMF_XTLV_H
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#include <linux/types.h>
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#include <linux/bits.h>
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/* bcm type(id), length, value with w/16 bit id/len. The structure below
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* is nominal, and is used to support variable length id and type. See
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* xtlv options below.
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*/
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struct brcmf_xtlv {
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u16 id;
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u16 len;
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u8 data[];
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};
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enum brcmf_xtlv_option {
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BRCMF_XTLV_OPTION_ALIGN32 = BIT(0),
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BRCMF_XTLV_OPTION_IDU8 = BIT(1),
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BRCMF_XTLV_OPTION_LENU8 = BIT(2),
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};
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int brcmf_xtlv_data_size(int dlen, u16 opts);
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void brcmf_xtlv_pack_header(struct brcmf_xtlv *xtlv, u16 id, u16 len,
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const u8 *data, u16 opts);
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#endif /* __BRCMF_XTLV_H */
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