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From:   Jerry Hoemann <jerry.hoemann@hpe.com>
To:     wim@linux-watchdog.org, linux@roeck-us.net
Cc:     linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org,
        rwright@hpe.com, maurice.a.saldivar@hpe.com, mingo@kernel.org,
        marcus.folkesson@gmail.com, Jerry Hoemann <jerry.hoemann@hpe.com>
Subject: [PATCH v5 0/9] watchdog/hpwdt: Update driver to use watchdog core.
Date:   Sun, 25 Feb 2018 20:22:18 -0700
Message-Id: <20180226032227.14615-1-jerry.hoemann@hpe.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

== v5 ==

Patch numbers changing due to squash and reorder.
Using Prior (v4) Patch number noting *new* patch numbers as bullet item.


Patch 0001 & 0004 Merged into: Update-Module-info-and-copyright
1) New Patch 0001

Patch 0002 Remove legacy NMI sourcing
1) Unmodified

Patch 0003 Update nmi_panic message.
1) Unmodified

Patch 0004 Update Module info.
1) Merged into 0001 above.

Patch 0005 Modify to use watchdog core
1) syntatic sugar.
2) Now Patch 0004

Patch 0006 condition-early-return-of-NMI-handler
1) Now Patch 0005
2) Casing on iLO5
3) true for boolean

Patch 0007 remove allow_kdump module param
1) Now patch 0006

Patch 0008 Programable Pretimeout NMI
1) Now patch 00007

Patch 0009 Add dynamic debug
1) Now patch 0008

Patch 0010 Update driver version.
1) Now Patch 0009


== v4 ==

Modifications from prior version:

Manual merging and patch reordering has cause minor white
space and diff changes.  Such change shouldn't have effected
the logic and are omitted below:

Patch 001  Remove legacy NMI sourcing.
1) Updated patch documentation to reflect Spectre concerns.
2) Restored comment at #endif
>>>>>>>>> 3) New Patch 0002  <<<<<<<<

Patch 002 watchdog/hpwdt: remove include files no longer
1) Squashed onto Patch001.
>>>>>>>>> 3) Still Patch 0002  <<<<<<<<


Patch 0003: watchdog/hpwdt: Update nmi_panic message.
1) Unchanged


Patch 0004:  watchdog/hpwdt: white space changes
1) Redacted.

Patch 0005: watchdog/hpwdt: Update Module info.
1) Now Patch 0004
2) Update only module description to reflect branding changes.
3) Rest of patch redacted.

Patch 0006 Select CORE
1) Merged with 0007

Patch 0007 Modify to use watchdog core
1) squashed on Patch 0006.
2) Now Patch 0005
3) Requested white space changes.
4) Use "wdd" for watchdog_device like other watchdog drivers do

Patch 0008 Programable-Pretimeout
1) hpwdt_settimeout re-worked to take into account timeout <= pretimeout.
   Patterned after watchdog_set_timeout.
2) hpwdt_set_pretimeout re-worked to take into account requested
   pretimeout <= timeout.
3) Clarify patch doc to reflect above.

Patch 0009 condition-early-return-of-NMI
1) Requested syntatic surgar.
2) Now Patch 0006

Patch 0010 remove-allow_kdump
1) Now Patch 0007

Patch 0011 Add-dynamic-debug
1) Now Patch 0009
2) Typo fix
3) New dev_dbg resulting from changes to set timeout and pretimeout.

Patch 0012 Update driver version.
1) Now Patch 0010

 
New Patch
1) Patch 0001 Update Copyright


== v3 ==

Incorperating code review feedback.

1) Patch 0003: Use existing hex_byte_pack instead of creating new function.
2) Patch 0005: Redacted change in module_param permission.
3) Patch 0006: switch from pr_debug etc., to dev_dbg where possible.
4) Patch 0006: No longer updating soft_margin post module load.
5) Patch 0006: Initialize hpwdt_dev.parent before registering watchdog.
6) Patch 0006: Redacted change to dev_info message w.r.t. allow_kdump
7) Patch 0006 & 0007: Reorder patches to maintain bisectability.
8) Patch 0008: Change pr_debug to dev_dbg
9) Patch 0010: Change dev_info message w.r.t. allow_kdump where feature
		is removed.

Note, I am explicitly ignoring the checkpatch error on Patch 0008
for specifying permisson of "0" instead of "0000".

== v2 ==

1) Fix compiler error when CONFIG_HPWDT_NMI_DECODING is not defined.

2) Break out driver version change to its own patch (0011).


== v1 ==

The primary purposes of this patch set are to

1) Update the hpwdt driver to use the watchdog core.
2) Reduce complexity by removing unnecessary features.
3) Add customer requested features like optional pretimeout.
4) Enhance readability/maintainability of the driver.

The size of the resultant driver is reduced from over 900
lines to 350 lines.

Patch 1& 2 remove legacy NMI sourcing.
Patch 3	adds useful indication of NMI cause to panic message
Patch 4 & 5 are general cleanup
Patch 6 & 7 updates the driver to user the watchdog core.
Patch 8 makes the pretimeout NMI programmable.
Patch 9 modifies whether the NMI handler claims the NMI.
Patch 10 retracts the allow_kdump module parameter.


Jerry Hoemann (9):
  watchdog/hpwdt: Update Module info and copyright.
  watchdog/hpwdt: Remove legacy NMI sourcing.
  watchdog/hpwdt: Update nmi_panic message.
  watchdog/hpwdt: Modify to use watchdog core.
  watchdog/hpwdt: condition early return of NMI handler on iLO5
  watchdog/hpwdt: remove allow_kdump module parameter.
  watchdog/hpwdt: Programable Pretimeout NMI
  watchdog/hpwdt: Add dynamic debug
  watchdog/hpwdt: Update driver version.

 drivers/watchdog/Kconfig |   1 +
 drivers/watchdog/hpwdt.c | 791 +++++++----------------------------------------
 2 files changed, 121 insertions(+), 671 deletions(-)

-- 
2.13.6