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9554c3551e
Since port-numbers start from 0, add 1 to port-number to get the port
count.
Fix following crash when Coresight is enabled on ACPI based systems:
[ 61.061736] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
...
[ 61.135494] pc : acpi_coresight_parse_graph+0x1c4/0x37c
[ 61.140705] lr : acpi_coresight_parse_graph+0x160/0x37c
[ 61.145915] sp : ffff800012f4ba40
[ 61.145917] x29: ffff800012f4ba40 x28: ffff00becce62f98
[ 61.159896] x27: 0000000000000005 x26: ffff00becd8a7c88
[ 61.165195] x25: ffff00becd8a7d88 x24: ffff00becce62f80
[ 61.170492] x23: ffff800011ef99c0 x22: ffff009efb8bc010
[ 61.175790] x21: 0000000000000018 x20: 0000000000000005
[ 61.181087] x19: ffff00becce62e80 x18: 0000000000000020
[ 61.186385] x17: 0000000000000001 x16: 00000000000002a8
[ 61.191682] x15: ffff000838648550 x14: ffffffffffffffff
[ 61.196980] x13: 0000000000000000 x12: ffff00becce62d87
[ 61.202277] x11: 00000000ffffff76 x10: 000000000000002e
[ 61.207575] x9 : ffff8000107e1a68 x8 : ffff00becce63000
[ 61.212873] x7 : 0000000000000018 x6 : 000000000000003f
[ 61.218170] x5 : 0000000000000000 x4 : 0000000000000000
[ 61.223467] x3 : 0000000000000000 x2 : 0000000000000000
[ 61.228764] x1 : ffff00becce62f80 x0 : 0000000000000000
[ 61.234062] Call trace:
[ 61.236497] acpi_coresight_parse_graph+0x1c4/0x37c
[ 61.241361] coresight_get_platform_data+0xdc/0x130
[ 61.246225] tmc_probe+0x138/0x2dc
[ 61.246227] amba_probe+0xdc/0x220
[ 61.255779] really_probe+0xe8/0x49c
[ 61.255781] driver_probe_device+0xec/0x140
[ 61.255782] device_driver_attach+0xc8/0xd0
[ 61.255785] __driver_attach+0xac/0x180
[ 61.265857] bus_for_each_dev+0x78/0xcc
[ 61.265859] driver_attach+0x2c/0x40
[ 61.265861] bus_add_driver+0x150/0x244
[ 61.265863] driver_register+0x80/0x13c
[ 61.273591] amba_driver_register+0x60/0x70
[ 61.273594] tmc_driver_init+0x20/0x2c
[ 61.281582] do_one_initcall+0x50/0x230
[ 61.281585] do_initcalls+0x104/0x144
[ 61.291831] kernel_init_freeable+0x168/0x1dc
[ 61.291834] kernel_init+0x1c/0x120
[ 61.299215] ret_from_fork+0x10/0x18
[ 61.299219] Code: b9400022 f9400660 9b277c42 8b020000 (f9400404)
[ 61.307381] ---[ end trace 63c6c3d7ec6a9b7c ]---
[ 61.315225] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
Fixes:
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History
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.