Re: [PATCH] fix compilation of 64-bit kernel with 32-bit compiler

[Peter Zijlstra]

On Thu, Mar 08, 2018 at 01:11:26AM -0500, Mikulas Patocka wrote:
> The patch b5bc2231b8ad4387c9641f235ca0ad8cd300b6df ("objtool: Add 
> retpoline validation") broke compiling 64-bit kernel with 32-bit compiler.
> 
> This patch fixes the following error and a large number of "can't find
> rela for retpoline_safe" errors that occur when using x32 or i386 gcc.
> 
> You shouldn't use the type 'unsigned long' in objtool at all - because its
> size depends on the compiler and not on the kernel you are compiling.

Your patch is wrong because the data field is actually a long. A correct
patch is already in merged in tip.