On 10/05/2017 12:07 PM, Himanshu Jha wrote:
In this case, the key is CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS. It
seems that asm-generic/unaligned.h is set up to include different
headers, based on the expected architecture behavior.
Yes, asm-generic/unaligned.h looks more appopriate and is most generic
implementation of unaligned accesses and arc specific.
Probably the idea is that each ARCH knows exactly what is the best way
to do unaligned access, so common code (like drivers) should include
ARCH-specific asm/unaligned.h only. It will then decide how to do that
and will include asm-generic/unaligned.h itself, if required.
