linux-kernel - Re: [PATCH] mm/hugetlb: move hugetlb_sysctl_init() to the _

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Message-Id: <20250319002228.44e220b1ffadb4cc994ad4cf@linux-foundation.org>
Date: Wed, 19 Mar 2025 00:22:28 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: marc.herbert@...ux.intel.com
Cc: Muchun Song <muchun.song@...ux.dev>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, Marc Herbert <Marc.Herbert@...ux.intel.com>
Subject: Re: [PATCH] mm/hugetlb: move hugetlb_sysctl_init() to the __init
 section

On Wed, 19 Mar 2025 06:00:30 +0000 marc.herbert@...ux.intel.com wrote:

> From: Marc Herbert <Marc.Herbert@...ux.intel.com>
> 
> hugetlb_sysctl_init() is only invoked once by an __init function and is
> merely a wrapper around another __init function so there is not reason
> to keep it.
> 
> Fixes the following warning when toning down some GCC inline options:
> 
>  WARNING: modpost: vmlinux: section mismatch in reference:
>    hugetlb_sysctl_init+0x1b (section: .text) ->
>      __register_sysctl_init (section: .init.text)
> 

Huh.  I wonder why this just started happening.