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Stanley Chu aa5c697988 scsi: ufs: Add trace event for UIC commands 
Use the ftrace infrastructure to conditionally trace UFS UIC command
events.

New trace event "ufshcd_uic_command" is created, which samples the
following UFS UIC command data:

 - Device name
 - Optional identification string
 - UIC command opcode
 - UIC command argument1
 - UIC command argument2
 - UIC command argement3

Usage:
	echo 1 > /sys/kernel/debug/tracing/events/ufs/enable
	cat /sys/kernel/debug/tracing/trace_pipe

Link: https://lore.kernel.org/r/20200615072235.23042-3-stanley.chu@mediatek.com
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
 		2020-06-15 23:35:06 -04:00
..
acpi Merge branch 'acpica' 2020-06-10 17:27:28 +02:00
asm-generic The X86 entry, exception and interrupt code rework 2020-06-13 10:05:47 -07:00
clocksource
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crypto
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drm drm: remove drm specific kmap_atomic code 2020-06-04 19:06:22 -07:00
dt-bindings - qcom : 2020-06-11 12:42:14 -07:00
keys keys: Implement update for the big_key type 2020-06-02 17:22:31 +01:00
kunit
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kvm
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linux Add additional LSM hooks for SafeSetID 2020-06-14 11:39:31 -07:00
math-emu
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media media updates for v5.8-rc1 2020-06-13 13:09:38 -07:00
misc
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net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
pcmcia
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ras
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rdma dynamic_debug: add an option to enable dynamic debug for modules only 2020-06-08 11:05:56 -07:00
scsi SCSI misc on 20200605 2020-06-05 15:11:50 -07:00
soc pci-v5.8-changes 2020-06-06 11:01:58 -07:00
sound ASoC: Updates for v5.8 2020-06-01 20:26:07 +02:00
target scsi: target: Rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb() 2020-06-09 21:57:26 -04:00
trace scsi: ufs: Add trace event for UIC commands 2020-06-15 23:35:06 -04:00
uapi Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
vdso
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video
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xen xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h 2020-06-11 15:15:19 +02:00