lib: packing: use GENMASK() for box_mask

JIRA: https://issues.redhat.com/browse/RHEL-92666

Upstream commit(s):
commit 46e784e
Author: Vladimir Oltean <vladimir.oltean@nxp.com>
Date:   Wed Oct 2 14:51:59 2024 -0700

    lib: packing: use GENMASK() for box_mask

    This is an u8, so using GENMASK_ULL() for unsigned long long is
    unnecessary.

    Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
    Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
    Link: https://patch.msgid.link/20241002-packing-kunit-tests-and-split-pack-unpack-v2-10-8373e551eae3@intel.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Signed-off-by: Petr Oros <poros@redhat.com>

Author: orosp

lib/packing.c

@@ -141,7 +141,7 @@ int pack(void *pbuf, u64 uval, size_t startbit, size_t endbit, size_t pbuflen,
 		proj_start_bit = ((box * BITS_PER_BYTE) + box_start_bit) - endbit;
 		proj_end_bit = ((box * BITS_PER_BYTE) + box_end_bit) - endbit;
 		proj_mask = GENMASK_ULL(proj_start_bit, proj_end_bit);
-		box_mask  = GENMASK_ULL(box_start_bit, box_end_bit);
+		box_mask = GENMASK(box_start_bit, box_end_bit);
 
 		/* Determine the offset of the u8 box inside the pbuf,
 		 * adjusted for quirks. The adjusted box_addr will be used for
@@ -249,7 +249,7 @@ int unpack(const void *pbuf, u64 *uval, size_t startbit, size_t endbit,
 		proj_start_bit = ((box * BITS_PER_BYTE) + box_start_bit) - endbit;
 		proj_end_bit = ((box * BITS_PER_BYTE) + box_end_bit) - endbit;
 		proj_mask = GENMASK_ULL(proj_start_bit, proj_end_bit);
-		box_mask  = GENMASK_ULL(box_start_bit, box_end_bit);
+		box_mask = GENMASK(box_start_bit, box_end_bit);
 
 		/* Determine the offset of the u8 box inside the pbuf,
 		 * adjusted for quirks. The adjusted box_addr will be used for