From: Benjamin Berg benjamin.berg@intel.com
This simplifies the use of SKBs in tests by avoiding the need for error checking.
Signed-off-by: Benjamin Berg benjamin.berg@intel.com --- include/kunit/skbuff.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 include/kunit/skbuff.h
diff --git a/include/kunit/skbuff.h b/include/kunit/skbuff.h new file mode 100644 index 000000000000..46dcb00af655 --- /dev/null +++ b/include/kunit/skbuff.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * KUnit struct sk_buff helpers. + * + * Copyright (C) 2023 Intel Corporation + */ + +#ifndef _KUNIT_SKBUFF_H +#define _KUNIT_SKBUFF_H + +#include <kunit/test.h> +#include <linux/skbuff.h> + +/** + * kunit_zalloc_skb() - Allocate and initialize a resource managed skb. + * @test: The test case to which the skb belongs + * @len: size to allocate + * @gfp: allocation mask + * + * Allocate a new struct sk_buff, zero fill the give length and add it as a + * resource to the kunit test for automatic cleanup. + * + * The function will not return in case of an allocation error. + */ +static inline struct sk_buff *kunit_zalloc_skb(struct kunit *test, int len, + gfp_t gfp) +{ + struct sk_buff *res = alloc_skb(len, gfp); + + KUNIT_ASSERT_NOT_NULL(test, res); + KUNIT_ASSERT_EQ(test, skb_pad(res, len), 0); + + kunit_add_cleanup(test, (kunit_cleanup_t) kfree_skb, res, gfp); + + return res; +} + +#endif /* _KUNIT_SKBUFF_H */