linux-kernel - Re: linux-next: build warning in Linus' tree

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Message-ID: <1fb3a54d-acae-4ca7-a803-4de04bc04ee3@infradead.org>
Date: Thu, 27 Nov 2025 10:49:10 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
 Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
 Alexey Skidanov <alexey.skidanov@...el.com>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning in Linus' tree



On 11/27/25 10:42 AM, Andrew Morton wrote:
> On Thu, 27 Nov 2025 13:06:24 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> 
>> Hi all,
>>
>> In Linus' tree, today's linux-next build (htmldocs) produced this
>> warning:
>>
>> WARNING: /home/sfr/kernels/next/next/include/linux/genalloc.h:52 function parameter 'start_addr' not described in 'genpool_algo_t'
>>
>> Introduced by commit
>>
>>   52fbf1134d47 ("lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk")
>>
>> This has been exposed recently after a bug was fixed that caused some
>> warnings to not be reported.
> 
> Thanks.  I think I can handle this one.  Just.

Acked-by: Randy Dunlap <rdunlap@...radead.org>
Tested-by: Randy Dunlap <rdunlap@...radead.org>
Thanks.

> --- a/include/linux/genalloc.h~genalloch-fix-htmldocs-warning
> +++ a/include/linux/genalloc.h
> @@ -44,6 +44,7 @@ struct gen_pool;
>   * @nr: The number of zeroed bits we're looking for
>   * @data: optional additional data used by the callback
>   * @pool: the pool being allocated from
> + * @start_addr: start address of memory chunk
>   */
>  typedef unsigned long (*genpool_algo_t)(unsigned long *map,
>  			unsigned long size,
> _
> 
> 

-- 
~Randy