From: David Ahern <dsahern@kernel.org>
To: Kuniyuki Iwashima <kuniyu@amazon.com>, purvayeshi550@gmail.com
Cc: davem@davemloft.net, edumazet@google.com, horms@kernel.org,
kuba@kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, pabeni@redhat.com
Subject: Re: [PATCH] net: ipv4: Fix uninitialized pointer warning in fnhe_remove_oldest
Date: Thu, 17 Apr 2025 22:03:51 -0700 [thread overview]
Message-ID: <b137f4c6-9cbd-456d-b839-bc77d6ef9079@kernel.org> (raw)
In-Reply-To: <20250417220022.23265-1-kuniyu@amazon.com>
On 4/17/25 4:00 PM, Kuniyuki Iwashima wrote:
> From: Purva Yeshi <purvayeshi550@gmail.com>
> Date: Thu, 17 Apr 2025 15:11:26 +0530
>> Fix Smatch-detected issue:
>> net/ipv4/route.c:605 fnhe_remove_oldest() error:
>> uninitialized symbol 'oldest_p'.
>>
>> Initialize oldest_p to NULL to avoid uninitialized pointer warning in
>> fnhe_remove_oldest.
>
> How does it remain uninitialised ?
>
> update_or_create_fnhe() ensures the bucket is not empty before
> calling fnhe_remove_oldest().
>
agreed. Not the simplest logic, but I do not see how oldest_p can be
unset after the loop.
next prev parent reply other threads:[~2025-04-18 5:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-17 9:41 [PATCH] net: ipv4: Fix uninitialized pointer warning in fnhe_remove_oldest Purva Yeshi
2025-04-17 22:00 ` Kuniyuki Iwashima
2025-04-18 5:03 ` David Ahern [this message]
2025-04-18 9:46 ` Purva Yeshi
2025-04-18 9:31 ` Purva Yeshi
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