RE: [PATCH] ARC: io.h: Implement reads{x}()/writes{x}()

From: David Laight
Date: Thu Nov 29 2018 - 07:47:56 EST

From: Jose Abreu
> Sent: 29 November 2018 12:42
> Some ARC CPU's do not support unaligned loads/stores. Currently, generic
> implementation of reads{b/w/l}()/writes{b/w/l}() is being used with ARC.
> This can lead to misfunction of some drivers as generic functions do a
> plain dereference of a pointer that can be unaligned.
> Let's use {get/put}_unaligned() helper instead of plain dereference of
> pointer in order to fix this.

Is it worth adding a check for the pointer being aligned?


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