Commit Graph

314 Commits

Author SHA1 Message Date
Breno Leitao
9ba4295b2e net: fill in MODULE_DESCRIPTION()s for SMSC drivers
W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to the SMSC 91x/911x/9420 Ethernet drivers.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-01-29 12:12:51 +00:00
Linus Torvalds
5be9911406 sh updates for v6.7
- locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local()
 - Documentation: kernel-parameters: Add earlyprintk=bios on SH
 - sh: bios: Revive earlyprintk support
 - sh: machvec: Remove custom ioport_{un,}map()
 - sh: Remove superhyway bus support
 - sh: Remove unused SH4-202 support
 - sh: Remove stale microdev board
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Merge tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux

Pull sh updates from John Paul Adrian Glaubitz:
 "While the previously announced patch series for converting arch/sh to
  device trees is not yet ready for inclusion to mainline and therefore
  didn't make it for this pull request, there are still a small number
  changes for v6.7 which include one platform (board plus CPU and driver
  code) removal plus two fixes.

  The removal sent in by Arnd Bergmann concerns the microdev board which
  was an early SuperH prototype board that was never used in production.
  With the board removed, we were able to drop the now unused code for
  the SH4-202 CPU and well as the driver code for the superhyway bus and
  a custom implementation for ioport_map() and ioport_unmap() which will
  allow us to simplify ioport handling in the future.

  Another patch set by Geert Uytterhoeven revives SuperH BIOS
  earlyprintk support which got accidentally disabled in
  e76fe57447 ("sh: Remove old early serial console code V2"), the
  second patch in the series updates the documentation.

  Finally, a patch by Masami Hiramatsu fixes a regression reported by
  the kernel test robot which uncovered that arch/sh is not implementing
  arch_cmpxchg_local() and therefore needs use __generic_cmpxchg_local()
  instead"

* tag 'sh-for-v6.7-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
  locking/atomic: sh: Use generic_cmpxchg_local for arch_cmpxchg_local()
  Documentation: kernel-parameters: Add earlyprintk=bios on SH
  sh: bios: Revive earlyprintk support
  sh: machvec: Remove custom ioport_{un,}map()
  sh: Remove superhyway bus support
  sh: Remove unused SH4-202 support
  sh: Remove stale microdev board
2023-11-02 15:34:59 -10:00
Arnd Bergmann
3ca64d0669 sh: Remove stale microdev board
This board was an early prototype platform for early SH4 CPUs and related
to the already removed SH5 cayman platform.

The microdev board itself has been kept in the tree for this long despite
being in a bad shape even 20 years ago when it got merged, with no working
PCI support and ugly workarounds for its I/O port implementation that
try to emulate PC style peripheral access despite being quite different
in reality.

As far as I can tell, the ethernet, display, USB and PCI devices on it
already broke at some point (afbb9d8d52, 46bc858720), so I think
we can just removeit entirely.

Link: https://lore.kernel.org/lkml/09094baf-dadf-4bce-9f63-f2a1f255f9a8@app.fastmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230914155523.3839811-1-arnd@kernel.org
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2023-10-25 16:48:06 +02:00
Uwe Kleine-König
e8e2c863f9 net: ethernet: smsc: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().

Trivially convert these drivers from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-20 09:06:40 +01:00
Zheng Zengkai
adc4d18538 net: smsc: Use pci_dev_id() to simplify the code
PCI core API pci_dev_id() can be used to get the BDF number for a pci
device. We don't need to compose it manually. Use pci_dev_id() to
simplify the code a little bit.

Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-13 12:30:39 +01:00
Rob Herring
3d40aed862 net: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Acked-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230727014944.3972546-1-robh@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-27 20:33:16 -07:00
Wu Yunchuan
099090c6ef ethernet: smsc: remove unnecessary (void*) conversions
No need cast (voidd*) to (struct smsc911x_data *) or
(struct smsc9420_pdata *).

Signed-off-by: Wu Yunchuan <yunchuan@nfschina.com>
Link: https://lore.kernel.org/r/20230717031204.54912-1-yunchuan@nfschina.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-07-18 19:00:47 -07:00
Jakub Kicinski
79548b7984 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:

drivers/net/ethernet/mediatek/mtk_ppe.c
  3fbe4d8c0e ("net: ethernet: mtk_eth_soc: ppe: add support for flow accounting")
  924531326e ("net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-30 14:43:03 -07:00
Wolfram Sang
da617cd8d9 smsc911x: remove superfluous variable init
phydev is assigned a value right away, no need to initialize it.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230329064414.25028-1-wsa+renesas@sang-engineering.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-03-30 15:35:33 +02:00
Wolfram Sang
f22c993f31 smsc911x: avoid PHY being resumed when interface is not up
SMSC911x doesn't need mdiobus suspend/resume, that's why it sets
'mac_managed_pm'. However, setting it needs to be moved from init to
probe, so mdiobus PM functions will really never be called (e.g. when
the interface is not up yet during suspend/resume).

Fixes: 3ce9f2bef7 ("net: smsc911x: Stop and start PHY during suspend and resume")
Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230327083138.6044-1-wsa+renesas@sang-engineering.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-03-28 13:39:47 +02:00
Wolfram Sang
22f5c23414 ethernet: remove superfluous clearing of phydev
phy_disconnect() calls phy_detach() which already clears 'phydev' if it
is attached to a struct net_device.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230321131745.27688-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-22 20:47:27 -07:00
Andy Shevchenko
c0e906a953 net: smc91x: Replace of_gpio.h with what indeed is used
of_gpio.h in this driver is solely used as a proxy to other headers.
This is incorrect usage of the of_gpio.h. Replace it .h with what
indeed is used in the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-19 10:40:04 +00:00
Arnd Bergmann
a2fd08448f net: remove smc911x driver
This driver was used on Arm and SH machines until 2009, when the
last platforms moved to the smsc911x driver for the same hardware.

Time to retire this version.

Link: https://lore.kernel.org/netdev/1232010482-3744-1-git-send-email-steve.glendinning@smsc.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20221017121900.3520108-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-10-18 19:33:51 -07:00
Jakub Kicinski
b48b89f9c1 net: drop the weight argument from netif_napi_add
We tell driver developers to always pass NAPI_POLL_WEIGHT
as the weight to netif_napi_add(). This may be confusing
to newcomers, drop the weight argument, those who really
need to tweak the weight can use netif_napi_add_weight().

Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for CAN
Link: https://lore.kernel.org/r/20220927132753.750069-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-28 18:57:14 -07:00
Jakub Kicinski
60ad1100d5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/testing/selftests/net/.gitignore
  sort the net-next version and use it

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-01 12:58:02 -07:00
Wolfram Sang
f029c781dd net: ethernet: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # For drivers/net/ethernet/mellanox/mlxsw
Acked-by: Geoff Levand <geoff@infradead.org> # For ps3_gelic_net and spider_net_ethtool
Acked-by: Tom Lendacky <thomas.lendacky@amd.com> # For drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
Acked-by: Marcin Wojtas <mw@semihalf.com> # For drivers/net/ethernet/marvell/mvpp2
Reviewed-by: Leon Romanovsky <leonro@nvidia.com> # For drivers/net/ethernet/mellanox/mlx{4|5}
Reviewed-by: Shay Agroskin <shayagr@amazon.com> # For drivers/net/ethernet/amazon/ena
Acked-by: Krzysztof Hałasa <khalasa@piap.pl> # For IXP4xx Ethernet
Link: https://lore.kernel.org/r/20220830201457.7984-3-wsa+renesas@sang-engineering.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-31 14:11:26 -07:00
Florian Fainelli
3ce9f2bef7 net: smsc911x: Stop and start PHY during suspend and resume
Commit 744d23c71a ("net: phy: Warn about incorrect
mdio_bus_phy_resume() state") unveiled that the smsc911x driver was not
properly stopping and restarting the PHY during suspend/resume. Correct
that by indicating that the MAC is in charge of PHY PM operations and
ensure that all MDIO bus activity is quiescent during suspend.

Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: fba863b816 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Fixes: 2aa70f8649 ("net: smsc911x: Quieten netif during suspend")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220825023951.3220-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26 18:48:15 -07:00
Tong Zhang
8ee9d82cd0 epic100: fix use after free on rmmod
epic_close() calls epic_rx() and uses dma buffer, but in epic_remove_one()
we already freed the dma buffer. To fix this issue, reorder function calls
like in the .probe function.

BUG: KASAN: use-after-free in epic_rx+0xa6/0x7e0 [epic100]
Call Trace:
 epic_rx+0xa6/0x7e0 [epic100]
 epic_close+0xec/0x2f0 [epic100]
 unregister_netdev+0x18/0x20
 epic_remove_one+0xaa/0xf0 [epic100]

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Yilun Wu <yiluwu@cs.stonybrook.edu>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Link: https://lore.kernel.org/r/20220627043351.25615-1-ztong0001@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-27 21:48:51 -07:00
Linus Torvalds
16477cdfef asm-generic changes for 5.19
The asm-generic tree contains three separate changes for linux-5.19:
 
 - The h8300 architecture is retired after it has been effectively
   unmaintained for a number of years. This is the last architecture we
   supported that has no MMU implementation, but there are still a few
   architectures (arm, m68k, riscv, sh and xtensa) that support CPUs with
   and without an MMU.
 
 - A series to add a generic ticket spinlock that can be shared by most
   architectures with a working cmpxchg or ll/sc type atomic, including
   the conversion of riscv, csky and openrisc. This series is also a
   prerequisite for the loongarch64 architecture port that will come as
   a separate pull request.
 
 - A cleanup of some exported uapi header files to ensure they can be
   included from user space without relying on other kernel headers.
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Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "The asm-generic tree contains three separate changes for linux-5.19:

   - The h8300 architecture is retired after it has been effectively
     unmaintained for a number of years. This is the last architecture
     we supported that has no MMU implementation, but there are still a
     few architectures (arm, m68k, riscv, sh and xtensa) that support
     CPUs with and without an MMU.

   - A series to add a generic ticket spinlock that can be shared by
     most architectures with a working cmpxchg or ll/sc type atomic,
     including the conversion of riscv, csky and openrisc. This series
     is also a prerequisite for the loongarch64 architecture port that
     will come as a separate pull request.

   - A cleanup of some exported uapi header files to ensure they can be
     included from user space without relying on other kernel headers"

* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  h8300: remove stale bindings and symlink
  sparc: add asm/stat.h to UAPI compile-test coverage
  powerpc: add asm/stat.h to UAPI compile-test coverage
  mips: add asm/stat.h to UAPI compile-test coverage
  riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
  kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
  agpgart.h: do not include <stdlib.h> from exported header
  csky: Move to generic ticket-spinlock
  RISC-V: Move to queued RW locks
  RISC-V: Move to generic spinlocks
  openrisc: Move to ticket-spinlock
  asm-generic: qrwlock: Document the spinlock fairness requirements
  asm-generic: qspinlock: Indicate the use of mixed-size atomics
  asm-generic: ticket-lock: New generic ticket-based spinlock
  remove the h8300 architecture
2022-05-26 10:50:30 -07:00
Geert Uytterhoeven
a3641ca416 net: smc911x: Fix min() use in debug code
If ENABLE_SMC_DEBUG_PKTS=1:

    drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_hardware_send_pkt’:
    include/linux/minmax.h:20:28: error: comparison of distinct pointer types lacks a cast [-Werror]
       20 |  (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
	  |                            ^~
    drivers/net/ethernet/smsc/smc911x.c:483:17: note: in expansion of macro ‘min’
      483 |  PRINT_PKT(buf, min(len, 64));

Fix this by making the constant unsigned, to match the type of "len".
While at it, replace the other missed ternary operator by min(), too.

Convert the dummy PRINT_PKT() from a macro to a static inline function,
to catch mistakes like this without having to enable debug options
manually.

Fixes: 5ff0348b7f ("net: smc911x: replace ternary operator with min()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-18 14:13:09 +01:00
Guo Zhengkui
5ff0348b7f net: smc911x: replace ternary operator with min()
Fix the following coccicheck warning:

drivers/net/ethernet/smsc/smc911x.c:483:20-22: WARNING opportunity for min()

Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Link: https://lore.kernel.org/r/20220516115627.66363-1-guozhengkui@vivo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-17 17:39:55 -07:00
Jakub Kicinski
b707b89f7b eth: switch to netif_napi_add_weight()
Switch all Ethernet drivers which use custom napi weights
to the new API.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-08 11:33:57 +01:00
Jakub Kicinski
c8227d568d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/testing/selftests/net/forwarding/Makefile
  f62c5acc80 ("selftests/net/forwarding: add missing tests to Makefile")
  50fe062c80 ("selftests: forwarding: new test, verify host mdb entries")
https://lore.kernel.org/all/20220502111539.0b7e4621@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-05 13:03:18 -07:00
Sergey Shtylyov
5ef9b803a4 smsc911x: allow using IRQ0
The AlphaProject AP-SH4A-3A/AP-SH4AD-0A SH boards use IRQ0 for their SMSC
LAN911x Ethernet chip, so the networking on them must have been broken by
commit 965b2aa78f ("net/smsc911x: fix irq resource allocation failure")
which filtered out 0 as well as the negative error codes -- it was kinda
correct at the time, as platform_get_irq() could return 0 on of_irq_get()
failure and on the actual 0 in an IRQ resource.  This issue was fixed by
me (back in 2016!), so we should be able to fix this driver to allow IRQ0
usage again...

When merging this to the stable kernels, make sure you also merge commit
e330b9a6bb ("platform: don't return 0 from platform_get_irq[_byname]()
on error") -- that's my fix to platform_get_irq() for the DT platforms...

Fixes: 965b2aa78f ("net/smsc911x: fix irq resource allocation failure")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/656036e4-6387-38df-b8a7-6ba683b16e63@omp.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-03 16:57:33 -07:00
Jakub Kicinski
e2a303295d eth: smsc: remove a copy of the NAPI_POLL_WEIGHT define
Defining local versions of NAPI_POLL_WEIGHT with the same
values in the drivers just makes refactoring harder.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-29 11:56:41 +01:00
Christoph Hellwig
1c4b5ecb7e remove the h8300 architecture
Signed-off-by: Christoph Hellwig <hch@lst.de>
2022-02-23 08:52:50 +01:00
Jakub Kicinski
6dde7acdb3 ethernet: smc911x: fix indentation in get/set EEPROM
Build bot produced a smatch indentation warning,
the code looks correct but it mixes spaces and tabs.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220131211730.3940875-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-02-01 19:59:03 -08:00
Jakub Kicinski
8b3f913322 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/net/sock.h
  commit 8f905c0e73 ("inet: fully convert sk->sk_rx_dst to RCU rules")
  commit 43f51df417 ("net: move early demux fields close to sk_refcnt")
  https://lore.kernel.org/all/20211222141641.0caa0ab3@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-23 16:09:58 -08:00
Jiasheng Jiang
cb93b3e11d drivers: net: smc911x: Check for error irq
Because platform_get_irq() could fail and return error irq.
Therefore, it might be better to check it if order to avoid the use of
error irq.

Fixes: ae150435b5 ("smsc: Move the SMC (SMSC) drivers")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-22 10:23:03 +00:00
Jakub Kicinski
80db345e7d smc9194: use eth_hw_addr_set()
dev_addr is set from IO reads, and broken from a u16 value.

Fixes build on Alpha.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-19 11:05:21 +00:00
Jakub Kicinski
f15fef4c06 ethernet: smsc: use eth_hw_addr_set()
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Break the address up into an array on the stack, then call
eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19 12:41:48 +01:00
Jakub Kicinski
02bfb6beb6 ethernet: smc91x: use eth_hw_addr_set()
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Read the address into an array on the stack, then call
eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19 12:41:48 +01:00
Jakub Kicinski
4abd7cffc0 ethernet: use eth_hw_addr_set() in unmaintained drivers
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-18 13:20:38 +01:00
Jakub Kicinski
923ca6f618 ethernet: replace netdev->dev_addr 16bit writes
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

This patch takes care of drivers which cast netdev->dev_addr to
a 16bit type, often with an explicit byte order.

Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-14 09:22:27 -07:00
Jakub Kicinski
562ef98a66 ethernet: replace netdev->dev_addr assignment loops
A handful of drivers contains loops assigning the mac
addr byte by byte. Convert those to eth_hw_addr_set().

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-14 09:22:25 -07:00
Jakub Kicinski
766607570b ethernet: constify references to netdev->dev_addr in drivers
This big patch sprinkles const on local variables and
function arguments which may refer to netdev->dev_addr.

Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.

Some of the changes here are not strictly required - const
is sometimes cast off but pointer is not used for writing.
It seems like it's still better to add the const in case
the code changes later or relevant -W flags get enabled
for the build.

No functional changes.

Link: https://lore.kernel.org/r/20211014142432.449314-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-14 09:22:11 -07:00
Jakub Kicinski
0a14501ed8 eth: fwnode: remove the addr len from mac helpers
All callers pass in ETH_ALEN and the function itself
will return -EINVAL for any other address length.
Just assume it's ETH_ALEN like all other mac address
helpers (nvm, of, platform).

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-07 13:39:51 +01:00
Jakub Kicinski
a96d317fb1 ethernet: use eth_hw_addr_set()
Convert all Ethernet drivers from memcpy(... ETH_ADDR)
to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - memcpy(dev->dev_addr, np, ETH_ALEN)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-02 14:18:25 +01:00
Cai Huoqing
005552854f net: smsc: Fix function names in print messages and comments
Use dma_xxx_xxx() instead of pci_xxx_xxx(),
because the pci function wrappers are not called here.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-27 12:44:33 +01:00
Colin Ian King
73fc98154e drivers: net: smc911x: clean up inconsistent indenting
There are various function arguments that are not indented correctly,
clean these up with correct indentation.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-03 11:51:26 +01:00
Arnd Bergmann
a07d8ecf6b ethernet: isa: convert to module_init/module_exit
There are a couple of ISA ethernet drivers that use the old
init_module/cleanup_module function names for the main entry
points, nothing else uses those any more.

Change them to the documented method with module_init()
and module_exit() markers next to static functions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-03 13:05:26 +01:00
Arnd Bergmann
4228c39428 make legacy ISA probe optional
There are very few ISA drivers left that rely on the static probing from
drivers/net/Space.o. Make them all select a new CONFIG_NETDEV_LEGACY_INIT
symbol, and drop the entire probe logic when that is disabled.

The 9 drivers that are called from Space.c are the same set that
calls netdev_boot_setup_check().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-03 13:05:26 +01:00
Arnd Bergmann
a76053707d dev_ioctl: split out ndo_eth_ioctl
Most users of ndo_do_ioctl are ethernet drivers that implement
the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware
timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.

Separate these from the few drivers that use ndo_do_ioctl to
implement SIOCBOND, SIOCBR and SIOCWANDEV commands.

This is a purely cosmetic change intended to help readers find
their way through the implementation.

Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27 20:11:45 +01:00
Hui Tang
996d7ab8ba net: smsc: remove leading spaces before tabs
There are a few leading spaces before tabs and remove it by running the
following commard:

	$ find . -name '*.c' | xargs sed -r -i 's/^[ ]+\t/\t/'
	$ find . -name '*.h' | xargs sed -r -i 's/^[ ]+\t/\t/'

Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-19 12:17:31 -07:00
Krzysztof Kozlowski
cc0626c2aa net: smsc911x: skip acpi_device_id table when !CONFIG_ACPI
The driver can match via multiple methods.  Its acpi_device_id table is
referenced via ACPI_PTR() so it will be unused for !CONFIG_ACPI builds:

  drivers/net/ethernet/smsc/smsc911x.c:2652:36: warning:
    ‘smsc911x_acpi_match’ defined but not used [-Wunused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-05 15:05:02 -07:00
Colin Ian King
214037a146 drivers: net: smc91x: remove redundant initialization of pointer gpio
The pointer gpio is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-28 17:51:17 -07:00
Geert Uytterhoeven
1e30b8d755 net: smsc911x: Make Runtime PM handling more fine-grained
Currently the smsc911x driver has mininal power management: during
driver probe, the device is powered up, and during driver remove, it is
powered down.

Improve power management by making it more fine-grained:
  1. Power the device down when driver probe is finished,
  2. Power the device (down) when it is opened (closed),
  3. Make sure the device is powered during PHY access.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20210118150857.796943-1-geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-19 17:46:39 -08:00
Lee Jones
7d2a92445e net: ethernet: smsc: smc91x: Fix function name in kernel-doc header
Fixes the following W=1 kernel build warning(s):

 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'dev' not described in 'try_toggle_control_gpio'
 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'desc' not described in 'try_toggle_control_gpio'
 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'name' not described in 'try_toggle_control_gpio'
 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'index' not described in 'try_toggle_control_gpio'
 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'value' not described in 'try_toggle_control_gpio'
 drivers/net/ethernet/smsc/smc91x.c:2200: warning: Function parameter or member 'nsdelay' not described in 'try_toggle_control_gpio'

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-01-16 18:12:57 -08:00
Andrew Lunn
7958ba7e62 drivers: net: smsc: Add COMPILE_TEST support
Improve the build testing of these SMSC drivers by enabling them when
COMPILE_TEST is selected.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-12 14:49:40 -08:00
Andrew Lunn
6e4a930c40 drivers: net: smc911x: Fix cast from pointer to integer of different size
drivers/net/ethernet/smsc/smc911x.c: In function ‘smc911x_hardware_send_pkt’:
drivers/net/ethernet/smsc/smc911x.c:471:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  471 |  cmdA = (((u32)skb->data & 0x3) << 16) |

When built on 64bit targets, the skb->data pointer cannot be cast to a
u32 in a meaningful way. Use uintptr_t instead.

Suggested-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-12 14:49:40 -08:00