linux.git/drivers/net/hamradio, branch v6.16

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-04-10T23:51:07+00:00

Cross-merge networking fixes after downstream PR (net-6.15-rc2).

Conflict:

Documentation/networking/netdevices.rst
net/core/lock_debug.c
  04efcee6ef8d ("net: hold instance lock during NETDEV_CHANGE")
  03df156dd3a6 ("xdp: double protect netdev->xdp_flags with netdev->lock")

No adjacent changes.

Signed-off-by: Jakub Kicinski

hamradio: Remove unnecessary strscpy_pad() size arguments

2025-04-08T10:38:47+00:00

If the destination buffer has a fixed length, strscpy_pad()
automatically determines its size using sizeof() when the argument is
omitted. This makes the explicit sizeof() calls unnecessary - remove
them.

No functional changes intended.

Signed-off-by: Thorsten Blum 
Link: https://patch.msgid.link/20250407082607.741919-2-thorsten.blum@linux.dev
Signed-off-by: Paolo Abeni

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.

Conversion was done with coccinelle plus manual fixups where necessary.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar

net: move misc netdev_lock flavors to a separate header

2025-03-08T17:06:50+00:00

Move the more esoteric helpers for netdev instance lock to
a dedicated header. This avoids growing netdevice.h to infinity
and makes rebuilding the kernel much faster (after touching
the header with the helpers).

The main netdev_lock() / netdev_unlock() functions are used
in static inlines in netdevice.h and will probably be used
most commonly, so keep them in netdevice.h.

Acked-by: Stanislav Fomichev 
Link: https://patch.msgid.link/20250307183006.2312761-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski

hamradio: use netdev_lockdep_set_classes() helper

2025-03-08T16:56:18+00:00

It is time to use netdev_lockdep_set_classes() in bpqether.c

List of related commits:

0bef512012b1 ("net: add netdev_lockdep_set_classes() to virtual drivers")
c74e1039912e ("net: bridge: use netdev_lockdep_set_classes()")
9a3c93af5491 ("vlan: use netdev_lockdep_set_classes()")
0d7dd798fd89 ("net: ipvlan: call netdev_lockdep_set_classes()")
24ffd752007f ("net: macvlan: call netdev_lockdep_set_classes()")
78e7a2ae8727 ("net: vrf: call netdev_lockdep_set_classes()")
d3fff6c443fe ("net: add netdev_lockdep_set_classes() helper")

syzbot reported:

WARNING: possible recursive locking detected
6.14.0-rc5-syzkaller-01064-g2525e16a2bae #0 Not tainted

dhcpcd/5501 is trying to acquire lock:
 ffff8880797e2d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline]
 ffff8880797e2d28 (&dev->lock){+.+.}-{4:4}, at: register_netdevice+0x12d8/0x1b70 net/core/dev.c:11008

but task is already holding lock:
 ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline]
 ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/linux/netdevice.h:2804 [inline]
 ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:65

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&dev->lock);
  lock(&dev->lock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

2 locks held by dhcpcd/5501:
  #0: ffffffff8fed6848 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
  #0: ffffffff8fed6848 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x34c/0x1d80 net/ipv4/devinet.c:1121
  #1: ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2765 [inline]
  #1: ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/linux/netdevice.h:2804 [inline]
  #1: ffff88802e530d28 (&dev->lock){+.+.}-{4:4}, at: dev_change_flags+0x120/0x270 net/core/dev_api.c:65

stack backtrace:
CPU: 1 UID: 0 PID: 5501 Comm: dhcpcd Not tainted 6.14.0-rc5-syzkaller-01064-g2525e16a2bae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 
  __dump_stack lib/dump_stack.c:94 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
  print_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3039
  check_deadlock kernel/locking/lockdep.c:3091 [inline]
  validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3893
  __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
  lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
  __mutex_lock_common kernel/locking/mutex.c:585 [inline]
  __mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
  netdev_lock include/linux/netdevice.h:2765 [inline]
  register_netdevice+0x12d8/0x1b70 net/core/dev.c:11008
  bpq_new_device drivers/net/hamradio/bpqether.c:499 [inline]
  bpq_device_event+0x4b1/0x8d0 drivers/net/hamradio/bpqether.c:542
  notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 __dev_notify_flags+0x207/0x400
  netif_change_flags+0xf0/0x1a0 net/core/dev.c:9442
  dev_change_flags+0x146/0x270 net/core/dev_api.c:66
  devinet_ioctl+0xea2/0x1d80 net/ipv4/devinet.c:1200
  inet_ioctl+0x3d7/0x4f0 net/ipv4/af_inet.c:1001
  sock_do_ioctl+0x158/0x460 net/socket.c:1190
  sock_ioctl+0x626/0x8e0 net/socket.c:1309
  vfs_ioctl fs/ioctl.c:51 [inline]
  __do_sys_ioctl fs/ioctl.c:906 [inline]
  __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fixes: 7e4d784f5810 ("net: hold netdev instance lock during rtnetlink operations")
Reported-by: syzbot 
Signed-off-by: Eric Dumazet 
Acked-by: Stanislav Fomichev 
Link: https://patch.msgid.link/20250307160358.3153859-1-edumazet@google.com
Signed-off-by: Jakub Kicinski

hamradio: baycom: replace strcpy() with strscpy()

2025-02-12T00:23:38+00:00

The strcpy() function has been deprecated and replaced with strscpy().
There is an effort to make this change treewide:
https://github.com/KSPP/linux/issues/88.

Signed-off-by: Ethan Carter Edwards 
Reviewed-by: Dan Carpenter 
Link: https://patch.msgid.link/3qo3fbrak7undfgocsi2s74v4uyjbylpdqhie4dohfoh4welfn@joq7up65ug6v
Signed-off-by: Jakub Kicinski

net: hamradio: scc: Switch to irq_get_nr_irqs()

2024-10-16T19:56:57+00:00

Use the irq_get_nr_irqs() function instead of the global variable
'nr_irqs'. Prepare for changing 'nr_irqs' from an exported global
variable into a variable with file scope.

Signed-off-by: Bart Van Assche 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20241015190953.1266194-11-bvanassche@acm.org

net: hamradio: baycom_ser_fdx: Switch to irq_get_nr_irqs()

2024-10-16T19:56:57+00:00

Use the irq_get_nr_irqs() function instead of the global variable
'nr_irqs'. Prepare for changing 'nr_irqs' from an exported global
variable into a variable with file scope.

Signed-off-by: Bart Van Assche 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20241015190953.1266194-10-bvanassche@acm.org

Merge tag 'tty-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2024-09-26T16:59:50+00:00

Pull tty / serial driver updates from Greg KH:
 "Here is the "big" set of tty/serial driver updates for 6.12-rc1.

  Nothing major in here, just nice forward progress in the slow cleanup
  of the serial apis, and lots of other driver updates and fixes.

  Included in here are:

   - serial api updates from Jiri to make things more uniform and sane

   - 8250_platform driver cleanups

   - samsung serial driver fixes and updates

   - qcom-geni serial driver fixes from Johan for the bizarre UART
     engine that that chip seems to have. Hopefully it's in a better
     state now, but hardware designers still seem to come up with more
     ways to make broken UARTS 40+ years after this all should have
     finished.

   - sc16is7xx driver updates

   - omap 8250 driver updates

   - 8250_bcm2835aux driver updates

   - a few new serial driver bindings added

   - other serial minor driver updates

  All of these have been in linux-next for a long time with no reported
  problems"

* tag 'tty-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits)
  tty: serial: samsung: Fix serial rx on Apple A7-A9
  tty: serial: samsung: Fix A7-A11 serial earlycon SError
  tty: serial: samsung: Use bit manipulation macros for APPLE_S5L_*
  tty: rp2: Fix reset with non forgiving PCIe host bridges
  serial: 8250_aspeed_vuart: Enable module autoloading
  serial: qcom-geni: fix polled console corruption
  serial: qcom-geni: disable interrupts during console writes
  serial: qcom-geni: fix console corruption
  serial: qcom-geni: introduce qcom_geni_serial_poll_bitfield()
  serial: qcom-geni: fix arg types for qcom_geni_serial_poll_bit()
  soc: qcom: geni-se: add GP_LENGTH/IRQ_EN_SET/IRQ_EN_CLEAR registers
  serial: qcom-geni: fix false console tx restart
  serial: qcom-geni: fix fifo polling timeout
  tty: hvc: convert comma to semicolon
  mxser: convert comma to semicolon
  serial: 8250_bcm2835aux: Fix clock imbalance in PM resume
  serial: sc16is7xx: convert bitmask definitions to use BIT() macro
  serial: sc16is7xx: fix copy-paste errors in EFR_SWFLOWx_BIT constants
  serial: sc16is7xx: remove SC16IS7XX_MSR_DELTA_MASK
  serial: xilinx_uartps: Make cdns_rs485_supported static
  ...