linux-kernel - Re: [PATCH RFC v3 05/35] mm: cma: Don't append newline when generating CMA area name

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Date: Mon, 29 Jan 2024 14:43:08 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: Alexandru Elisei <alexandru.elisei@....com>, catalin.marinas@....com,
 will@...nel.org, oliver.upton@...ux.dev, maz@...nel.org,
 james.morse@....com, suzuki.poulose@....com, yuzenghui@...wei.com,
 arnd@...db.de, akpm@...ux-foundation.org, mingo@...hat.com,
 peterz@...radead.org, juri.lelli@...hat.com, vincent.guittot@...aro.org,
 dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
 mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com,
 mhiramat@...nel.org, rppt@...nel.org, hughd@...gle.com
Cc: pcc@...gle.com, steven.price@....com, vincenzo.frascino@....com,
 david@...hat.com, eugenis@...gle.com, kcc@...gle.com, hyesoo.yu@...sung.com,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 kvmarm@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
 linux-arch@...r.kernel.org, linux-mm@...ck.org,
 linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH RFC v3 05/35] mm: cma: Don't append newline when
 generating CMA area name


On 1/25/24 22:12, Alexandru Elisei wrote:
> cma->name is displayed in several CMA messages. When the name is generated
> by the CMA code, don't append a newline to avoid breaking the text across
> two lines.

An example of such mis-formatted CMA output from dmesg could be added
here in the commit message to demonstrate the problem better.

> 
> Signed-off-by: Alexandru Elisei <alexandru.elisei@....com>
> ---

Regardless, LGTM.

Reviewed-by: Anshuman Khandual <anshuman.khandual@....com>

> 
> Changes since rfc v2:
> 
> * New patch. This is a fix, and can be merged independently of the other
> patches.

Right, need not be part of this series. Hence please send it separately to
the MM list.

> 
>  mm/cma.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/cma.c b/mm/cma.c
> index 7c09c47e530b..f49c95f8ee37 100644
> --- a/mm/cma.c
> +++ b/mm/cma.c
> @@ -204,7 +204,7 @@ int __init cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
>  	if (name)
>  		snprintf(cma->name, CMA_MAX_NAME, name);
>  	else
> -		snprintf(cma->name, CMA_MAX_NAME,  "cma%d\n", cma_area_count);
> +		snprintf(cma->name, CMA_MAX_NAME,  "cma%d", cma_area_count);
>  
>  	cma->base_pfn = PFN_DOWN(base);
>  	cma->count = size >> PAGE_SHIFT;