diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-10-01 00:23:52 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-09-30 18:02:20 -0700 |
| commit | e6459606b04e6385ccd3c2060fc10f78a92c7700 (patch) | |
| tree | d89592d1a11147c46fa72795e99ca2bc8726f58a /include/linux/earlycpio.h | |
| parent | 979570e02981d4a8fc20b3cc8fd651856c98ee9d (diff) | |
| download | lwn-e6459606b04e6385ccd3c2060fc10f78a92c7700.tar.gz lwn-e6459606b04e6385ccd3c2060fc10f78a92c7700.zip | |
lib: Add early cpio decoder
Add a simple cpio decoder without library dependencies for the purpose
of extracting components from the initramfs blob for early kernel
uses. Intended consumers so far are microcode and ACPI override.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1349043837-22659-2-git-send-email-trenn@suse.de
Cc: Len Brown <lenb@kernel.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'include/linux/earlycpio.h')
| -rw-r--r-- | include/linux/earlycpio.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/earlycpio.h b/include/linux/earlycpio.h new file mode 100644 index 000000000000..111f46d83d00 --- /dev/null +++ b/include/linux/earlycpio.h @@ -0,0 +1,17 @@ +#ifndef _LINUX_EARLYCPIO_H +#define _LINUX_EARLYCPIO_H + +#include <linux/types.h> + +#define MAX_CPIO_FILE_NAME 18 + +struct cpio_data { + void *data; + size_t size; + char name[MAX_CPIO_FILE_NAME]; +}; + +struct cpio_data find_cpio_data(const char *path, void *data, size_t len, + long *offset); + +#endif /* _LINUX_EARLYCPIO_H */ |