diff options
Diffstat (limited to 'kexec/firmware_memmap.h')
| -rw-r--r-- | kexec/firmware_memmap.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kexec/firmware_memmap.h b/kexec/firmware_memmap.h index adb03c3..eac0ddb 100644 --- a/kexec/firmware_memmap.h +++ b/kexec/firmware_memmap.h @@ -39,6 +39,19 @@ */ /** + * Compares two memory ranges according to their start address. This function + * can be used with qsort() as @c compar function. + * + * @param[in] first a pointer to the first memory range + * @param[in] second a pointer to the second memory range + * @return 0 if @p first and @p second have the same start address, + * a value less then 0 if the start address of @p first is less than + * the start address of @p second, and a value greater than 0 if + * the opposite is in case. + */ +int compare_ranges(const void *first, const void *second); + +/** * Checks if the kernel provides the /sys/firmware/memmap interface. * It makes sense to use that function in advance before calling * get_firmware_memmap_ranges() because the latter function prints an error |