linux-stable/drivers/net/ethernet/neterion
Arnd Bergmann 40507e7aad ethernet: s2io: fix setting mac address during resume
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: 2fd3768845 ("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>
2021-10-14 07:12:33 -07:00
..
vxge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-08-05 15:08:47 -07:00
Kconfig docs: networking: reorganize driver documentation again 2020-06-26 16:08:44 -07:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
s2io-regs.h
s2io.c ethernet: s2io: fix setting mac address during resume 2021-10-14 07:12:33 -07:00
s2io.h net: neterion: s2io: Replace in_interrupt() for context detection 2020-10-31 09:55:16 -07:00