linux/drivers/hv
Jocelyn Falempe e1a261ba59 printk: Add a short description string to kmsg_dump()
kmsg_dump doesn't forward the panic reason string to the kmsg_dumper
callback.
This patch adds a new struct kmsg_dump_detail, that will hold the
reason and description, and pass it to the dump() callback.

To avoid updating all kmsg_dump() call, it adds a kmsg_dump_desc()
function and a macro for backward compatibility.

I've written this for drm_panic, but it can be useful for other
kmsg_dumper.
It allows to see the panic reason, like "sysrq triggered crash"
or "VFS: Unable to mount root fs on xxxx" on the drm panic screen.

v2:
 * Use a struct kmsg_dump_detail to hold the reason and description
   pointer, for more flexibility if we want to add other parameters.
   (Kees Cook)
 * Fix powerpc/nvram_64 build, as I didn't update the forward
   declaration of oops_to_nvram()

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Petr Mladek <pmladek@suse.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Kees Cook <kees@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240702122639.248110-1-jfalempe@redhat.com
2024-07-17 12:35:24 +02:00
..
channel_mgmt.c Drivers: hv: vmbus: Add utility function for querying ring size 2024-04-11 14:55:53 +02:00
channel.c Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted 2024-04-10 21:33:33 +00:00
connection.c Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails 2024-04-10 21:33:32 +00:00
hv_balloon.c hyperv-next for v6.6 2023-09-04 11:26:29 -07:00
hv_common.c printk: Add a short description string to kmsg_dump() 2024-07-17 12:35:24 +02:00
hv_debugfs.c hv_debugfs: Make hv_debug_root static 2020-04-04 17:47:43 +01:00
hv_kvp.c Drivers: hv: Fix syntax errors in comments 2022-06-08 12:26:28 +00:00
hv_snapshot.c hv_utils: Add comment about max VMbus packet size in VSS driver 2022-02-18 13:08:18 +00:00
hv_trace_balloon.h hv_balloon: trace post_status 2018-03-06 09:57:17 -08:00
hv_trace.c hv: add SPDX license to trace 2018-03-28 13:24:56 +02:00
hv_trace.h Drivers: hv: vmbus: Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE 2021-04-18 13:03:11 +00:00
hv_util.c Drivers: hv: Remove fcopy driver 2024-04-11 14:55:53 +02:00
hv_utils_transport.c Drivers: hv: utils: Make use of the helper macro LIST_HEAD() 2022-02-09 14:33:21 +00:00
hv_utils_transport.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280 2019-06-05 17:36:36 +02:00
hv.c hyperv-tlfs: Change prefix of generic HV_REGISTER_* MSRs to HV_MSR_* 2024-03-04 06:59:18 +00:00
hyperv_vmbus.h Drivers: hv: vmbus: Add utility function for querying ring size 2024-04-11 14:55:53 +02:00
Kconfig x86/hyperv: Use per cpu initial stack for vtl context 2024-03-08 23:40:09 +00:00
Makefile Drivers: hv: Remove fcopy driver 2024-04-11 14:55:53 +02:00
ring_buffer.c Drivers: hv: vmbus: Remove second way of mapping ring buffers 2023-04-17 19:19:04 +00:00
vmbus_drv.c hyperv-fixes for v6.9-rc4 2024-04-11 16:23:56 -07:00