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0e51f2e288
Import the latest implementation of memcpy(), based on the upstream code of string/aarch64/memcpy.S at commit afd6244 from https://github.com/ARM-software/optimized-routines, and subsuming memmove() in the process. Note that for simplicity Arm have chosen to contribute this code to Linux under GPLv2 rather than the original MIT license. Note also that the needs of the usercopy routines vs. regular memcpy() have now diverged so far that we abandon the shared template idea and the damage which that incurred to the tuning of LDP/STP loops. We'll be back to tackle those routines separately in future. Link: https://lore.kernel.org/r/3c953af43506581b2422f61952261e76949ba711.1622128527.git.robin.murphy@arm.com Change-Id: I78b4d7bf65b1a4eebf509b087d0120b0f99e51c4 Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Richard Raya <rdxzv.dev@gmail.com>