linux-kernel - Re: [PATCH v3 0/2] objtool: altinstructions fix and cleanup

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Date:   Fri, 3 Sep 2021 13:16:28 +0200 (CEST)
From:   Miroslav Benes <mbenes@...e.cz>
To:     Joe Lawrence <joe.lawrence@...hat.com>
cc:     x86@...nel.org, Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org, Andy Lavr <andy.lavr@...il.com>
Subject: Re: [PATCH v3 0/2] objtool: altinstructions fix and cleanup

On Sun, 22 Aug 2021, Joe Lawrence wrote:

> This version won't eat your memory and swap when building the entire
> kernel.  Apologies to Andy who discovered this over the weekend.
> 
> Tested full build and boot w/o problem.  The vmlinux sections, relocs,
> size, etc. all appear to be the same before and after this set.
> External tooling (kpatch-build) is happy, too.
> 
> v3:
> - fix bug introduced in arch_decode_instruction() [andy]
> 
> v2:
> - drop the sec->len update from the first patch [josh]
> - rip out sec->len as suggested [josh]
> 
> 
> Joe Lawrence (2):
>   objtool: make .altinstructions section entry size consistent
>   objtool: remove redundant len value from struct section

Reviewed-by: Miroslav Benes <mbenes@...e.cz>

M