The Linux Kernel Mailing List
 help / color / mirror / Atom feed
From: Dev Jain <dev.jain@arm.com>
To: "David Hildenbrand (Arm)" <david@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Lorenzo Stoakes <ljs@kernel.org>, Zi Yan <ziy@nvidia.com>,
	Baolin Wang <baolin.wang@linux.alibaba.com>,
	"Liam R. Howlett" <liam@infradead.org>,
	Nico Pache <nico.pache@linux.dev>,
	Ryan Roberts <ryan.roberts@arm.com>,
	Barry Song <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>,
	Usama Arif <usama.arif@linux.dev>,
	Vlastimil Babka <vbabka@kernel.org>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Shuah Khan <shuah@kernel.org>
Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] selftests/mm: khugepaged: remove str_dup() usage
Date: Tue, 25 Aug 2026 18:48:40 +0530	[thread overview]
Message-ID: <482ad8b2-680d-4682-80e4-baf4023bcef7@arm.com> (raw)
In-Reply-To: <20260825-remove_str_dup-v1-1-0ba2121a820c@kernel.org>



On 25/08/26 4:50 pm, David Hildenbrand (Arm) wrote:
> We don't check str_dup() return value and never free it. While both
> things are irrelevant in practice, let's just clean it up by working on
> argv[0] directly and avoiding the str_dup().
> 
> Nobody after us needs these parts of the argv[0] string anyway.
> 
> This patch is inspired by previous work from Anshuman Tewari [1].
> 
> Link: https://lore.kernel.org/r/20260821114416.12255-1-anshumantewari123@gmail.com [1]
> Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
> ---

LGTM

Reviewed-by: Dev Jain <dev.jain@arm.com>


>  tools/testing/selftests/mm/khugepaged.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/mm/khugepaged.c b/tools/testing/selftests/mm/khugepaged.c
> index 1d2d6bd72fd2a..83d27d069c413 100644
> --- a/tools/testing/selftests/mm/khugepaged.c
> +++ b/tools/testing/selftests/mm/khugepaged.c
> @@ -1227,7 +1227,7 @@ static void parse_test_type(int argc, char **argv)
>  		return;
>  	}
>  
> -	buf = strdup(argv[0]);
> +	buf = argv[0];
>  	token = strsep(&buf, ":");
>  
>  	if (!strcmp(token, "all")) {
> 
> ---
> 
> base-commit: 169393fff5d1ec2690934067eeb95544ff5ebdd7
> 
> change-id: 20260825-remove_str_dup-bb089e93094f
> 
> --
> 
> Cheers,
> 
> David


  parent reply	other threads:[~2026-08-25 13:18 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-25 11:20 [PATCH] selftests/mm: khugepaged: remove str_dup() usage David Hildenbrand (Arm)
2026-08-25 11:23 ` Lorenzo Stoakes (ARM)
2026-08-25 11:57 ` Zi Yan
2026-08-25 12:47 ` Lance Yang
2026-08-25 13:18 ` Dev Jain [this message]
2026-08-25 13:41 ` Usama Arif

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=482ad8b2-680d-4682-80e4-baf4023bcef7@arm.com \
    --to=dev.jain@arm.com \
    --cc=akpm@linux-foundation.org \
    --cc=baohua@kernel.org \
    --cc=baolin.wang@linux.alibaba.com \
    --cc=david@kernel.org \
    --cc=lance.yang@linux.dev \
    --cc=liam@infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=ljs@kernel.org \
    --cc=mhocko@suse.com \
    --cc=nico.pache@linux.dev \
    --cc=rppt@kernel.org \
    --cc=ryan.roberts@arm.com \
    --cc=shuah@kernel.org \
    --cc=surenb@google.com \
    --cc=usama.arif@linux.dev \
    --cc=vbabka@kernel.org \
    --cc=ziy@nvidia.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox