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Date: Sun, 7 Sep 2025 18:41:24 +0100
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Subject: Re: [PATCH net] net: stmmac: prevent division by 0 in
 stmmac_init_tstamp_counter()
To: Sergey Shtylyov <s.shtylyov@omp.ru>, Andrew Lunn <andrew+netdev@lunn.ch>,
 "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
 Maxime Coquelin <mcoquelin.stm32@gmail.com>,
 Alexandre Torgue <alexandre.torgue@foss.st.com>, netdev@vger.kernel.org,
 linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
References: <58116e65-1bca-4d87-b165-78989e1aa195@omp.ru>
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From: Vadim Fedorenko <vadim.fedorenko@linux.dev>
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On 05/09/2025 17:06, Sergey Shtylyov wrote:
> In stmmac_init_tstamp_counter(), the sec_inc variable is initialized to 0,
> and if stmmac_config_sub_second_increment() fails to set it to some non-0

How that can happen? Do you have real kernel oops log?