[PATCHv3 3/7] ia64: Add .opd based function descriptor dereference

[Petr Mladek]

On Sat 2017-09-30 11:53:15, Sergey Senozhatsky wrote:
> We are moving towards separate kernel and module function descriptor
> dereference callbacks. This patch enables it for IA64.
> 
> For pointers that belong to the kernel
> -  Added __start_opd and __end_opd pointers, to track the kernel
>    .opd section address range;
> 
> -  Added dereference_kernel_function_descriptor(). Now we
>    will dereference only function pointers that are within
>    [__start_opd, __end_opd];
> 
> For pointers that belong to a module
> -  Added dereference_module_function_descriptor() to handle module
>    function descriptor dereference. Now we will dereference only
>    pointers that are within [module->opd.start, module->opd.end].
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky at gmail.com>
> Tested-by: Helge Deller <deller at gmx.de> # parisc64
> Tested-by: Santosh Sivaraj <santosh at fossix.org> # powerpc64
> Acked-by: Michael Ellerman <mpe at ellerman.id.au> # powerpc64
> Tested-by: Tony Luck <tony.luck at intel.com> # ia64

Looks good to me.

Reviewed-by: Petr Mladek <pmladek at suse.com>

Best Regards,
Petr