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2b23b6c0f0
The return ranges of some bpf lsm test progs can not be deduced by the verifier accurately. To avoid erroneous rejections, add explicit return value checks for these progs. Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Link: https://lore.kernel.org/r/20240719110059.797546-8-xukuohai@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
29 lines
592 B
C
29 lines
592 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ERR_H__
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#define __ERR_H__
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#define MAX_ERRNO 4095
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#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
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#define __STR(x) #x
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#define set_if_not_errno_or_zero(x, y) \
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({ \
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asm volatile ("if %0 s< -4095 goto +1\n" \
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"if %0 s<= 0 goto +1\n" \
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"%0 = " __STR(y) "\n" \
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: "+r"(x)); \
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})
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static inline int IS_ERR_OR_NULL(const void *ptr)
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{
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return !ptr || IS_ERR_VALUE((unsigned long)ptr);
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}
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static inline long PTR_ERR(const void *ptr)
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{
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return (long) ptr;
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}
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#endif /* __ERR_H__ */
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