| 1 |
|
| 2 | |
| 3 | * KUnit resource management helpers for SKBs (skbuff).
|
| 4 | *
|
| 5 | * Copyright (C) 2023 Intel Corporation
|
| 6 |
|
| 7 |
|
| 8 | #ifndef _KUNIT_SKBUFF_H
|
| 9 | #define _KUNIT_SKBUFF_H
|
| 10 |
|
| 11 | #include <kunit/resource.h>
|
| 12 | #include <linux/skbuff.h>
|
| 13 |
|
| 14 | static void kunit_action_kfree_skb(void *p)
|
| 15 | {
|
| 16 | kfree_skb((struct sk_buff *)p);
|
| 17 | }
|
| 18 |
|
| 19 | |
| 20 | * kunit_zalloc_skb() - Allocate and initialize a resource managed skb.
|
| 21 | * @test: The test case to which the skb belongs
|
| 22 | * @len: size to allocate
|
| 23 | * @gfp: allocation flags
|
| 24 | *
|
| 25 | * Allocate a new struct sk_buff with gfp flags, zero fill the given length
|
| 26 | * and add it as a resource to the kunit test for automatic cleanup.
|
| 27 | *
|
| 28 | * Returns: newly allocated SKB, or %NULL on error
|
| 29 |
|
| 30 | static inline struct sk_buff *kunit_zalloc_skb(struct kunit *test, int len,
|
| 31 | gfp_t gfp)
|
| 32 | {
|
| 33 | struct sk_buff *res = alloc_skb(len, gfp);
|
| 34 |
|
| 35 | if (!res || skb_pad(res, len))
|
| 36 | return NULL;
|
| 37 |
|
| 38 | if (kunit_add_action_or_reset(test, kunit_action_kfree_skb, res))
|
| 39 | return NULL;
|
| 40 |
|
| 41 | return res;
|
| 42 | }
|
| 43 |
|
| 44 | |
| 45 | * kunit_kfree_skb() - Like kfree_skb except for allocations managed by KUnit.
|
| 46 | * @test: The test case to which the resource belongs.
|
| 47 | * @skb: The SKB to free.
|
| 48 |
|
| 49 | static inline void kunit_kfree_skb(struct kunit *test, struct sk_buff *skb)
|
| 50 | {
|
| 51 | if (!skb)
|
| 52 | return;
|
| 53 |
|
| 54 | kunit_release_action(test, kunit_action_kfree_skb, (void *)skb);
|
| 55 | }
|
| 56 |
|
| 57 | #endif
|