Re: [PATCH 9/10] signal: do not use save_static_function() anymore

["Franck Bui-Huu" <vagabon.xyz@gmail.com>]

Atsushi Nemoto wrote:
> If you did not restore static registers in kernel stack on
> restore_sigcontext(), succeeding RESTORE_STATIC in restore_all will
> load garbages to static registers.
You're right the patch I sent is not sufficient. However, we actually
could restore save_static_function (well if we do it, I think it's
much better to do it in assembly code...) for sys_sigreturn() _only_.
In that case RESTORE_STATIC should load correct values, shouldn't it ?

But the points are:

        - get rid of saving static registers in setup_sigcontext()
        - get rid of restoring static registers in restore_sigcontext()
        - free space in the signal frame

what do you think ?
--
              Franck