> On Tue, 18 Nov 2008,
akpm@linux-foundation.org wrote:
> > Subject: unaligned: introduce common header
> > From: Harvey Harrison <harvey.harrison@gmail.com>
> >
> > There are two common cases in the kernel, one where unaligned access is OK
> > for an arch and one where the arch uses a packed-struct for the native
> > endianness and opencoded C byteshifting for the other endianness.
> > Consolidate these two implementations in asm-generic/unaligned.h
> >
> > Arches that require no special handling of unaligned access can define
> > _UNALIGNED_ACCESS_OK in their asm/unaligned.h before including the generic
> > version.
> >
> > +static inline void __put_le32_noalign(u8 *p, u32 val)
> > +{
> > + __put_le16_noalign(p + 2, val >> 16);
> > + __put_le16_noalign(p, val);
>
> Isn't it more logical to reverse the order, to store in increasing memory
> locations:
>
> __put_le16_noalign(p, val);
> __put_le16_noalign(p + 2, val >> 16);
>