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[34.86.60.15]) by smtp.gmail.com with UTF8SMTPSA id 00721157ae682-7966c16ee7csm112391867b3.6.2026.02.17.06.14.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Feb 2026 06:14:11 -0800 (PST) Date: Tue, 17 Feb 2026 09:14:11 -0500 From: Willem de Bruijn To: Sebastian Andrzej Siewior , Willem de Bruijn Cc: Vadim Fedorenko , netdev@vger.kernel.org, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Kurt Kanzenbach , Paolo Abeni , Simon Horman , Willem de Bruijn Message-ID: In-Reply-To: <20260217132838.kgRAQ87W@linutronix.de> References: <20260214232456.A37oV4KQ@linutronix.de> <20260215184608.8dk4hemG@linutronix.de> <9130dfca-1e85-4975-8df9-4de8bd9e8f5e@linux.dev> <20260217132838.kgRAQ87W@linutronix.de> Subject: Re: [PATCH net] net: Drop the lock in skb_may_tx_timestamp() Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sebastian Andrzej Siewior wrote: > On 2026-02-16 13:08:43 [-0500], Willem de Bruijn wrote: > > It will be great to have this additional context in the commit > > message. > > = > > And a Link: to the original discussion thread. > = > Okay. > = > > Btw, the commit states that a few drivers already call this from thei= r > > hard interrupt handler. Can you point to one or two? > = > - bxcan_tx_isr() -> can_get_echo_skb() -> __can_get_echo_skb() -> > skb_tstamp_tx() > = > - at91_irq() -> at91_irq_tx() -> can_get_echo_skb() -> =E2=80=A6 -> > skb_tstamp_tx() > = > - hclge_misc_irq_handle() -> hclge_ptp_clean_tx_hwts() -> > skb_tstamp_tx() > = > - igc_intr_msi() -> igc_tsync_interrupt() -> igc_ptp_tx_tstamp_event() > -> igc_ptp_tx_hwtstamp() -> igc_ptp_tx_reg_to_stamp() -> > skb_tstamp_tx() > = > > If this is only for new drivers, it would be vastly preferable if thi= s > > can go through net-next. > = > I found three, I knew about igc. I don't mind net-next but if we keep > the stable tag, it will be backported anyway, it will just take longer.= > But if we want to do this in order to catch problems with it before it > hits stable then it makes sense. These are more than enough cases to warrant net. Thanks.