mirror of
https://github.com/torvalds/linux
synced 2024-09-21 11:38:48 +00:00
b6459415b3
sock.h is pretty heavily used (5k objects rebuilt on x86 after it's touched). We can drop the include of filter.h from it and add a forward declaration of struct sk_filter instead. This decreases the number of rebuilt objects when bpf.h is touched from ~5k to ~1k. There's a lot of missing includes this was masking. Primarily in networking tho, this time. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/bpf/20211229004913.513372-1-kuba@kernel.org
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2021 Intel Corporation
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*/
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#include <asm/unaligned.h>
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void eir_create(struct hci_dev *hdev, u8 *data);
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u8 eir_create_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr);
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u8 eir_create_scan_rsp(struct hci_dev *hdev, u8 instance, u8 *ptr);
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u8 eir_append_local_name(struct hci_dev *hdev, u8 *eir, u8 ad_len);
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u8 eir_append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
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static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
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u8 *data, u8 data_len)
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{
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eir[eir_len++] = sizeof(type) + data_len;
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eir[eir_len++] = type;
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memcpy(&eir[eir_len], data, data_len);
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eir_len += data_len;
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return eir_len;
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}
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static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
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{
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eir[eir_len++] = sizeof(type) + sizeof(data);
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eir[eir_len++] = type;
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put_unaligned_le16(data, &eir[eir_len]);
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eir_len += sizeof(data);
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return eir_len;
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}
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static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
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size_t *data_len)
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{
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size_t parsed = 0;
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if (eir_len < 2)
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return NULL;
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while (parsed < eir_len - 1) {
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u8 field_len = eir[0];
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if (field_len == 0)
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break;
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parsed += field_len + 1;
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if (parsed > eir_len)
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break;
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if (eir[1] != type) {
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eir += field_len + 1;
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continue;
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}
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/* Zero length data */
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if (field_len == 1)
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return NULL;
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if (data_len)
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*data_len = field_len - 1;
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return &eir[2];
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}
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return NULL;
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}
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