Export compare_ranges() function from firmware_memmap.c module.
It is generic function and it could be used by other modules.
Signed-off-by: Daniel Kiper <dkiper at net-space.pl>
---
kexec/firmware_memmap.c | 14 ++------------
kexec/firmware_memmap.h | 13 +++++++++++++
2 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/kexec/firmware_memmap.c b/kexec/firmware_memmap.c
index d8afed5..9598933 100644
--- a/kexec/firmware_memmap.c
+++ b/kexec/firmware_memmap.c
@@ -179,18 +179,8 @@ static int parse_memmap_entry(const char *entry, struct memory_range *range)
return 0;
}
-/**
- * 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.
- */
-static int compare_ranges(const void *first, const void *second)
+/* documentation: firmware_memmap.h */
+int compare_ranges(const void *first, const void *second)
{
const struct memory_range *first_range = first;
const struct memory_range *second_range = second;
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
--
1.5.6.5
