On Wed, Feb 1, 2017 at 3:12 PM, James Bottomley <james.bottom...@hansenpartnership.com> wrote: > On Tue, 2017-01-31 at 16:26 -0800, Andrew Morton wrote: >> On Sat, 28 Jan 2017 12:13:10 +0100 Helge Deller <del...@gmx.de> >> wrote: >> >> > The prctl(PR_GET_ENDIAN) syscall was added to Kernel 2.6.18, but >> > implemented for PowerPC only. This trivial patch adds support for >> > this syscall for all other architectures. >> >> Seems reasonable. I guess. Why is this needed? > > I don't think it is other than for PPC. If you're not variable endian > (which is only PPC to date), then you should know a priori what endian > you are from the #defines in userspace.
I find it vaguely odd even on PPC. Surely you can tell what your endianness is directly. (An API to query the endianness of another task would be useful, though.)
