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authorMaxime Ripard <mripard@kernel.org>2024-12-02 12:44:18 +0100
committerMaxime Ripard <mripard@kernel.org>2024-12-02 12:44:18 +0100
commit3aba2eba84e0219fb66061359052be81bd883d53 (patch)
tree36da31539acaa6c360d0b606103d90926ac04e50 /include/linux/packing.h
parent44cff6c5b0b17a78bc0b30372bcd816cf6dd282a (diff)
parent40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff)
Merge drm/drm-next into drm-misc-next
Kickstart 6.14 cycle. Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'include/linux/packing.h')
-rw-r--r--include/linux/packing.h32
1 files changed, 6 insertions, 26 deletions
diff --git a/include/linux/packing.h b/include/linux/packing.h
index 8d6571feb95d..5d36dcd06f60 100644
--- a/include/linux/packing.h
+++ b/include/linux/packing.h
@@ -17,33 +17,13 @@ enum packing_op {
UNPACK,
};
-/**
- * packing - Convert numbers (currently u64) between a packed and an unpacked
- * format. Unpacked means laid out in memory in the CPU's native
- * understanding of integers, while packed means anything else that
- * requires translation.
- *
- * @pbuf: Pointer to a buffer holding the packed value.
- * @uval: Pointer to an u64 holding the unpacked value.
- * @startbit: The index (in logical notation, compensated for quirks) where
- * the packed value starts within pbuf. Must be larger than, or
- * equal to, endbit.
- * @endbit: The index (in logical notation, compensated for quirks) where
- * the packed value ends within pbuf. Must be smaller than, or equal
- * to, startbit.
- * @op: If PACK, then uval will be treated as const pointer and copied (packed)
- * into pbuf, between startbit and endbit.
- * If UNPACK, then pbuf will be treated as const pointer and the logical
- * value between startbit and endbit will be copied (unpacked) to uval.
- * @quirks: A bit mask of QUIRK_LITTLE_ENDIAN, QUIRK_LSW32_IS_FIRST and
- * QUIRK_MSB_ON_THE_RIGHT.
- *
- * Return: 0 on success, EINVAL or ERANGE if called incorrectly. Assuming
- * correct usage, return code may be discarded.
- * If op is PACK, pbuf is modified.
- * If op is UNPACK, uval is modified.
- */
int packing(void *pbuf, u64 *uval, int startbit, int endbit, size_t pbuflen,
enum packing_op op, u8 quirks);
+int pack(void *pbuf, u64 uval, size_t startbit, size_t endbit, size_t pbuflen,
+ u8 quirks);
+
+int unpack(const void *pbuf, u64 *uval, size_t startbit, size_t endbit,
+ size_t pbuflen, u8 quirks);
+
#endif