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75e4720651
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Gerhard Engleder 75e4720651 tsnep: Fix set MAC address 
Commit 4dfb998264 ("tsn:  Fix build.") fixed compilation with const
dev_addr. In tsnep_netdev_set_mac_address() the call of ether_addr_copy()
was replaced with dev_set_mac_address(), which calls
ndo_set_mac_address(). This results in an endless recursive loop because
ndo_set_mac_address is set to tsnep_netdev_set_mac_address.

Call eth_hw_addr_set() instead of dev_set_mac_address() in
ndo_set_mac_address()/tsnep_netdev_set_mac_address() to copy the address
as intended.

[   26.563303] Insufficient stack space to handle exception!
[   26.563312] ESR: 0x96000047 -- DABT (current EL)
[   26.563317] FAR: 0xffff80000a507fc0
[   26.563320] Task stack:     [0xffff80000a508000..0xffff80000a50c000]
[   26.563324] IRQ stack:      [0xffff80000a0c0000..0xffff80000a0c4000]
[   26.563327] Overflow stack: [0xffff00007fbaf2b0..0xffff00007fbb02b0]
[   26.563333] CPU: 3 PID: 381 Comm: ifconfig Not tainted 5.16.0-rc1-zynqmp #60
[   26.563340] Hardware name: TSN endpoint (DT)
[   26.563343] pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   26.563351] pc : inetdev_event+0x4/0x560
[   26.563364] lr : raw_notifier_call_chain+0x54/0x78
[   26.563372] sp : ffff80000a508040
[   26.563374] x29: ffff80000a508040 x28: ffff00000132b800 x27: 0000000000000000
[   26.563386] x26: 0000000000000000 x25: ffff800000ea5058 x24: 0904030201020001
[   26.563396] x23: ffff800000ea5058 x22: ffff80000a5080e0 x21: 0000000000000009
[   26.563405] x20: 00000000fffffffa x19: ffff80000a009510 x18: 0000000000000000
[   26.563414] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffd1341030
[   26.563422] x14: ffffffffffffffff x13: 0000000000000020 x12: 0101010101010101
[   26.563432] x11: 0000000000000020 x10: 0101010101010101 x9 : 7f7f7f7f7f7f7f7f
[   26.563441] x8 : 7f7f7f7f7f7f7f7f x7 : fefefeff30677364 x6 : 0000000080808080
[   26.563450] x5 : 0000000000000000 x4 : ffff800008dee170 x3 : ffff80000a50bd42
[   26.563459] x2 : ffff80000a5080e0 x1 : 0000000000000009 x0 : ffff80000a0092d0
[   26.563470] Kernel panic - not syncing: kernel stack overflow
[   26.563474] CPU: 3 PID: 381 Comm: ifconfig Not tainted 5.16.0-rc1-zynqmp #60
[   26.563481] Hardware name: TSN endpoint (DT)
[   26.563484] Call trace:
[   26.563486]  dump_backtrace+0x0/0x1b0
[   26.563497]  show_stack+0x18/0x68
[   26.563504]  dump_stack_lvl+0x68/0x84
[   26.563513]  dump_stack+0x18/0x34
[   26.563519]  panic+0x164/0x324
[   26.563524]  nmi_panic+0x64/0x98
[   26.563533]  panic_bad_stack+0x108/0x128
[   2k6.563539]  handle_bad_stack+0x38/0x68
[   26.563548]  __bad_stack+0x88/0x8c
[   26.563553]  inetdev_event+0x4/0x560
[   26.563560]  call_netdevice_notifiers_info+0x58/0xa8
[   26.563569]  dev_set_mac_address+0x78/0x110
[   26.563576]  tsnep_netdev_set_mac_address+0x38/0x60 [tsnep]
[   26.563591]  dev_set_mac_address+0xc4/0x110
[   26.563599]  tsnep_netdev_set_mac_address+0x38/0x60 [tsnep]
...
[   26.565444]  dev_set_mac_address+0xc4/0x110
[   26.565452]  tsnep_netdev_set_mac_address+0x38/0x60 [tsnep]
[   26.565462]  dev_set_mac_address+0xc4/0x110
[   26.565469]  dev_set_mac_address_user+0x44/0x68
[   26.565477]  dev_ifsioc+0x30c/0x568
[   26.565483]  dev_ioctl+0x124/0x3f0
[   26.565489]  sock_do_ioctl+0xb4/0xf8
[   26.565497]  sock_ioctl+0x2f4/0x398
[   26.565503]  __arm64_sys_ioctl+0xa8/0xe8
[   26.565511]  invoke_syscall+0x44/0x108
[   26.565520]  el0_svc_common.constprop.3+0x94/0xf8
[   26.565527]  do_el0_svc+0x24/0x88
[   26.565534]  el0_svc+0x20/0x50
[   26.565541]  el0t_64_sync_handler+0x90/0xb8
[   26.565548]  el0t_64_sync+0x180/0x184
[   26.565556] SMP: stopping secondary CPUs
[   26.565622] Kernel Offset: disabled
[   26.565624] CPU features: 0x0,00004002,00000846
[   26.565628] Memory Limit: none
[   27.843428] ---[ end Kernel panic - not syncing: kernel stack overflow ]---

Fixes: 4dfb998264 ("tsn:  Fix build.")
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-23 12:11:00 +00:00
arch ethtool: extend ringparam setting/getting API with rx_buf_len 2021-11-22 12:31:49 +00:00
block blk-mq: fix filesystem I/O request allocation 2021-11-12 09:31:13 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Update to zstd-1.4.10 2021-11-13 15:32:30 -08:00
Documentation dt-bindings: net: Add tsnep Ethernet controller 2021-11-22 13:19:04 +00:00
drivers tsnep: Fix set MAC address 2021-11-23 12:11:00 +00:00
fs for-5.16-rc1-tag 2021-11-18 12:41:14 -08:00
include neigh: introduce neigh_confirm() helper function 2021-11-23 11:51:37 +00:00
init kbuild: Fix -Wimplicit-fallthrough=5 error for GCC 5.x and 6.x 2021-11-14 18:59:49 -08:00
ipc ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL 2021-11-09 10:02:53 -08:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-11-18 13:13:16 -08:00
lib printk fixup for 5.16 2021-11-18 10:50:45 -08:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Revert "mm: shmem: don't truncate page if memory failure happens" 2021-11-13 12:03:03 -08:00
net skbuff: Switch structure bounds to struct_group() 2021-11-22 15:13:54 +00:00
samples samples/bpf: Fix build error due to -isystem removal 2021-11-15 20:37:20 -08:00
scripts coccinelle patches for 5.16-rc1 2021-11-13 10:45:17 -08:00
security net,lsm,selinux: revert the security_sctp_assoc_established() hook 2021-11-14 12:21:53 +00:00
sound sound fixes for 5.16-rc1 2021-11-12 12:17:30 -08:00
tools selftests: mptcp: add tproxy test case 2021-11-20 14:11:00 +00:00
usr initramfs: Check timestamp to prevent broken cpio archive 2021-10-24 13:48:40 +09:00
virt Merge branch 'kvm-5.16-fixes' into kvm-master 2021-11-18 02:11:57 -05:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Networking fixes for 5.16-rc2, including fixes from bpf, mac80211. 2021-11-18 12:54:24 -08:00
Makefile Linux 5.16-rc1 2021-11-14 13:56:52 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.