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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH 4.9 18/50] ethernet: s2io: fix setting mac address during resume
Date: Mon, 25 Oct 2021 21:14:05 +0200	[thread overview]
Message-ID: <20211025190936.459787199@linuxfoundation.org> (raw)
In-Reply-To: <20211025190932.542632625@linuxfoundation.org>

From: Arnd Bergmann <arnd@arndb.de>

commit 40507e7aada8422c38aafa0c8a1a09e4623c712a upstream.

After recent cleanups, gcc started warning about a suspicious
memcpy() call during the s2io_io_resume() function:

In function '__dev_addr_set',
    inlined from 'eth_hw_addr_set' at include/linux/etherdevice.h:318:2,
    inlined from 's2io_set_mac_addr' at drivers/net/ethernet/neterion/s2io.c:5205:2,
    inlined from 's2io_io_resume' at drivers/net/ethernet/neterion/s2io.c:8569:7:
arch/x86/include/asm/string_32.h:182:25: error: '__builtin_memcpy' accessing 6 bytes at offsets 0 and 2 overlaps 4 bytes at offset 2 [-Werror=restrict]
  182 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/netdevice.h:4648:9: note: in expansion of macro 'memcpy'
 4648 |         memcpy(dev->dev_addr, addr, len);
      |         ^~~~~~

What apparently happened is that an old cleanup changed the calling
conventions for s2io_set_mac_addr() from taking an ethernet address
as a character array to taking a struct sockaddr, but one of the
callers was not changed at the same time.

Change it to instead call the low-level do_s2io_prog_unicast() function
that still takes the old argument type.

Fixes: 2fd376884558 ("S2io: Added support set_mac_address driver entry point")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211013143613.2049096-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/neterion/s2io.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -8618,7 +8618,7 @@ static void s2io_io_resume(struct pci_de
 			return;
 		}
 
-		if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
+		if (do_s2io_prog_unicast(netdev, netdev->dev_addr) == FAILURE) {
 			s2io_card_down(sp);
 			pr_err("Can't restore mac addr after reset.\n");
 			return;



  parent reply	other threads:[~2021-10-25 19:20 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-25 19:13 [PATCH 4.9 00/50] 4.9.288-rc1 review Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 01/50] ALSA: seq: Fix a potential UAF by wrong private_free call order Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 02/50] s390: fix strrchr() implementation Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 03/50] xhci: Enable trust tx length quirk for Fresco FL11 USB controller Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 04/50] cb710: avoid NULL pointer subtraction Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 05/50] efi/cper: use stack buffer for error record decoding Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 06/50] efi: Change down_interruptible() in virt_efi_reset_system() to down_trylock() Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 07/50] Input: xpad - add support for another USB ID of Nacon GC-100 Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 08/50] USB: serial: qcserial: add EM9191 QDL support Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 09/50] USB: serial: option: add Telit LE910Cx composition 0x1204 Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 10/50] nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 11/50] iio: adc128s052: Fix the error handling path of adc128_probe() Greg Kroah-Hartman
2021-10-25 19:13 ` [PATCH 4.9 12/50] iio: light: opt3001: Fixed timeout error when 0 lux Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 13/50] iio: ssp_sensors: add more range checking in ssp_parse_dataframe() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 14/50] iio: ssp_sensors: fix error code in ssp_print_mcu_debug() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 15/50] net: arc: select CRC32 Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 16/50] net: korina: " Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 17/50] net: encx24j600: check error in devm_regmap_init_encx24j600 Greg Kroah-Hartman
2021-10-25 19:14 ` Greg Kroah-Hartman [this message]
2021-10-25 19:14 ` [PATCH 4.9 19/50] nfc: fix error handling of nfc_proto_register() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 20/50] NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 21/50] NFC: digital: fix possible memory leak in digital_in_send_sdd_req() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 22/50] pata_legacy: fix a couple uninitialized variable bugs Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 23/50] drm/msm: Fix null pointer dereference on pointer edp Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 24/50] drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 25/50] r8152: select CRC32 and CRYPTO/CRYPTO_HASH/CRYPTO_SHA256 Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 26/50] xtensa: xtfpga: use CONFIG_USE_OF instead of CONFIG_OF Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 27/50] xtensa: xtfpga: Try software restart before simulating CPU reset Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 28/50] NFSD: Keep existing listeners on portlist error Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 29/50] netfilter: ipvs: make global sysctl readonly in non-init netns Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 30/50] NIOS2: irqflags: rename a redefined register name Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 31/50] can: rcar_can: fix suspend/resume Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 32/50] can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 33/50] can: peak_pci: peak_pci_remove(): fix UAF Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 34/50] ocfs2: fix data corruption after conversion from inline format Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 35/50] ocfs2: mount fails with buffer overflow in strlen Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 36/50] elfcore: correct reference to CONFIG_UML Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 37/50] vfs: check fd has read access in kernel_read_file_from_fd() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 38/50] ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 39/50] ASoC: DAPM: Fix missing kctl change notifications Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 40/50] nfc: nci: fix the UAF of rf_conn_info object Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 41/50] isdn: cpai: check ctr->cnr to avoid array index out of bound Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 42/50] netfilter: Kconfig: use default y instead of m for bool config option Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 43/50] ARM: dts: spear3xx: Fix gmac node Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 44/50] isdn: mISDN: Fix sleeping function called from invalid context Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 45/50] platform/x86: intel_scu_ipc: Update timeout value in comment Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 46/50] ALSA: hda: avoid write to STATESTS if controller is in reset Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 47/50] usbnet: sanity check for maxpacket Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 48/50] net: mdiobus: Fix memory leak in __mdiobus_register Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 49/50] tracing: Have all levels of checks prevent recursion Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 4.9 50/50] ARM: 9122/1: select HAVE_FUTEX_CMPXCHG Greg Kroah-Hartman
2021-10-25 19:41 ` [PATCH 4.9 00/50] 4.9.288-rc1 review Florian Fainelli
2021-10-26  9:16 ` Jon Hunter
2021-10-26 17:02 ` Naresh Kamboju
2021-10-26 17:30 ` Shuah Khan
2021-10-26 19:14 ` Guenter Roeck

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