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From: Alexander Lobakin <aleksander.lobakin@intel.com>
To: "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: Michal Michalik <michal.michalik@intel.com>,
	netdev@vger.kernel.org,
	Richard Cochran <richardcochran@gmail.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	linux-kernel@vger.kernel.org,
	Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>,
	Alexander Lobakin <aleksander.lobakin@intel.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	intel-wired-lan@lists.osuosl.org,
	Milena Olech <milena.olech@intel.com>
Subject: [Intel-wired-lan] [PATCH net-next 3/3] idpf: fix undefined reference to tcp_gro_complete() when !CONFIG_INET
Date: Wed, 20 Sep 2023 20:07:45 +0200	[thread overview]
Message-ID: <20230920180745.1607563-4-aleksander.lobakin@intel.com> (raw)
In-Reply-To: <20230920180745.1607563-1-aleksander.lobakin@intel.com>

When CONFIG_INET is not set, tcp_gro_complete is not compiled, although
the drivers using it may still be compiled (spotted by Randy):

aarch64-linux-ld: drivers/net/ethernet/intel/idpf/idpf_txrx.o:
in function `idpf_rx_rsc.isra.0':
drivers/net/ethernet/intel/idpf/idpf_txrx.c:2909:(.text+0x40cc):
undefined reference to `tcp_gro_complete'

The drivers need to guard the calls to it manually.
Return early from the RSC completion function if !CONFIG_INET, it won't
work properly either way. This effectively makes it be compiled-out
almost entirely on such builds.

Fixes: 3a8845af66ed ("idpf: add RX splitq napi poll support")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/linux-next/4c84eb7b-3dec-467b-934b-8a0240f7fb12@infradead.org
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
---
 drivers/net/ethernet/intel/idpf/idpf_txrx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 6fa79898c42c..aa45afeb6496 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -2876,6 +2876,9 @@ static int idpf_rx_rsc(struct idpf_queue *rxq, struct sk_buff *skb,
 	if (unlikely(!(ipv4 ^ ipv6)))
 		return -EINVAL;
 
+	if (!IS_ENABLED(CONFIG_INET))
+		return 0;
+
 	rsc_segments = DIV_ROUND_UP(skb->data_len, rsc_seg_len);
 	if (unlikely(rsc_segments == 1))
 		return 0;
-- 
2.41.0

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  parent reply	other threads:[~2023-09-20 18:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-20 18:07 [Intel-wired-lan] [PATCH net-next 0/3] net/intel: fix link-time undefined reference errors Alexander Lobakin
2023-09-20 18:07 ` [Intel-wired-lan] [PATCH net-next 1/3] ice: fix undefined references to ice_is_*() when !CONFIG_PTP_1588_CLOCK Alexander Lobakin
2023-09-20 23:20   ` Jacob Keller
2023-09-20 18:07 ` [Intel-wired-lan] [PATCH net-next 2/3] ice: fix undefined references from DPLL code " Alexander Lobakin
2023-09-20 23:22   ` Jacob Keller
2023-09-21 23:58   ` Vadim Fedorenko
2023-09-22 13:58     ` Alexander Lobakin
2023-09-20 18:07 ` Alexander Lobakin [this message]
2023-09-20 21:30   ` [Intel-wired-lan] [PATCH net-next 3/3] idpf: fix undefined reference to tcp_gro_complete() when !CONFIG_INET Randy Dunlap
2023-09-21  0:04     ` Jacob Keller
2023-09-21  1:30       ` Randy Dunlap
2023-10-12 15:47         ` Randy Dunlap
2023-10-12 16:13           ` Alexander Lobakin
2023-10-12 18:34           ` Keller, Jacob E
2023-10-12 23:31             ` Jakub Kicinski
2023-10-13 17:16               ` Jacob Keller
2023-09-20 23:24   ` Jacob Keller
2023-09-20 23:31 ` [Intel-wired-lan] [PATCH net-next 0/3] net/intel: fix link-time undefined reference errors Jacob Keller
2023-09-21 12:52   ` Alexander Lobakin
2023-09-21 13:04   ` Alexander Lobakin
2023-09-21  8:52 ` Przemek Kitszel

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