forked from mirrors/linux
bdcb37a5d8
The vmlinux decompressor code intentionally has only a limited set of
included header files, but this started running into a build failure
because of the bitmap logic needing linux/errno.h:
In file included from include/linux/cpumask.h:12,
from include/linux/mm_types_task.h:14,
from include/linux/mm_types.h:5,
from include/linux/buildid.h:5,
from include/linux/module.h:14,
from arch/arm/boot/compressed/../../../../lib/lz4/lz4_decompress.c:39,
from arch/arm/boot/compressed/../../../../lib/decompress_unlz4.c:10,
from arch/arm/boot/compressed/decompress.c:60:
include/linux/bitmap.h: In function 'bitmap_allocate_region':
include/linux/bitmap.h:527:25: error: 'EBUSY' undeclared (first use in this function)
527 | return -EBUSY;
| ^~~~~
include/linux/bitmap.h:527:25: note: each undeclared identifier is reported only once for each function it appears in
include/linux/bitmap.h: In function 'bitmap_find_free_region':
include/linux/bitmap.h:554:17: error: 'ENOMEM' undeclared (first use in this function)
554 | return -ENOMEM;
| ^~~~~~
This is easily avoided by changing linux/buildid.h to no longer depend on
linux/mm_types.h, a header that pulls in a huge number of indirect dependencies.
Fixes: b9c957f554442 ("bitmap: move bitmap_*_region() functions to bitmap.h")
Fixes: bd7525dacd ("bpf: Move stack_map_get_build_id into lib")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
21 lines
581 B
C
21 lines
581 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_BUILDID_H
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#define _LINUX_BUILDID_H
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#include <linux/types.h>
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#define BUILD_ID_SIZE_MAX 20
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struct vm_area_struct;
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int build_id_parse(struct vm_area_struct *vma, unsigned char *build_id,
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__u32 *size);
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int build_id_parse_buf(const void *buf, unsigned char *build_id, u32 buf_size);
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#if IS_ENABLED(CONFIG_STACKTRACE_BUILD_ID) || IS_ENABLED(CONFIG_CRASH_CORE)
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extern unsigned char vmlinux_build_id[BUILD_ID_SIZE_MAX];
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void init_vmlinux_build_id(void);
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#else
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static inline void init_vmlinux_build_id(void) { }
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#endif
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#endif
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