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
next prev parent reply other threads:[~2026-08-25 13:18 UTC|newest]
Thread overview: 10+ 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)
2026-08-27 7:04 ` Anshuman
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
2026-08-27 6:26 ` Baolin Wang
2026-08-27 6:37 ` Barry Song
2026-08-28 3:39 ` Andrew Morton
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