Re: [PATCH] scsi: delete decade+ obsolete aic7xxx_old driver

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Yes, this driver is well past ready to be removed.

Acked-by: Doug Ledford <dledford@xxxxxxxxxx>

Sent from my ASUS Pad

Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx> wrote:

>After getting warnings in an allyesconfig build[1] from this
>driver, I decided to remind myself just how old it was, and
>whether it warranted fixing.  In the Kconfig help text, I found:
>
>  "This driver will eventually be phased out entirely"
>
>Going back to the history archive, I see the line was added[2]
>in Feb 2002, when we moved from v2.4.2.1 ---> v2.4.2.2
>
>So, with over a decade of notification, and multiple major releases
>since then, I think we can justify removing this.  Currently we have
>people wasting time building it during routine testing, and then
>wasting more time re-researching the known reported warnings, only to
>find that nobody really is willing to integrate the fixes[3] for it.
>
>A quick search didn't seem to indicate any active user base for it.
>If someone happens to have a quirky _old_ card that the eleven year
>old "new" driver doesn't work with, then it is entirely reasonable
>that they stick with a kernel version that predates this removal.
>
>[1] drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_register’:
>    drivers/scsi/aic7xxx_old.c:7901:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
>    drivers/scsi/aic7xxx_old.c:7898:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]
>    drivers/scsi/aic7xxx_old.c: In function ‘aic7xxx_load_seeprom’:
>    drivers/scsi/aic7xxx_old.c:8517:5: warning: case value ‘257’ not in enumerated type ‘ahc_chip’ [-Wswitch]
>    drivers/scsi/aic7xxx_old.c:8510:5: warning: case value ‘513’ not in enumerated type ‘ahc_chip’ [-Wswitch]
>
>[2] http://git.kernel.org/cgit/linux/kernel/git/tglx/history.git commit 44e8778c
>
>[3] https://lkml.org/lkml/2012/10/29/215
>
>Cc: Hannes Reinecke <hare@xxxxxxx>
>Cc: Doug Ledford <dledford@xxxxxxxxxx>
>Cc: "James E.J. Bottomley" <JBottomley@xxxxxxxxxxxxx>
>Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
>---
>
>[This is an "--irreversible-delete" pseudo-patch which doesn't show all
>the file content that was deleted wholesale.  The full commit is at:
>git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux.git aic7xxx-delete ]
>
> Documentation/scsi/00-INDEX             |     2 -
> Documentation/scsi/aic7xxx_old.txt      |   511 --
> MAINTAINERS                             |     1 -
> drivers/scsi/Kconfig                    |    41 -
> drivers/scsi/Makefile                   |     1 -
> drivers/scsi/aic7xxx_old.c              | 11149 ------------------------------
> drivers/scsi/aic7xxx_old/aic7xxx.h      |    28 -
> drivers/scsi/aic7xxx_old/aic7xxx.reg    |  1401 ----
> drivers/scsi/aic7xxx_old/aic7xxx.seq    |  1539 -----
> drivers/scsi/aic7xxx_old/aic7xxx_proc.c |   270 -
> drivers/scsi/aic7xxx_old/aic7xxx_reg.h  |   629 --
> drivers/scsi/aic7xxx_old/aic7xxx_seq.c  |   817 ---
> drivers/scsi/aic7xxx_old/scsi_message.h |    49 -
> drivers/scsi/aic7xxx_old/sequencer.h    |   135 -
> 14 files changed, 16573 deletions(-)
> delete mode 100644 Documentation/scsi/aic7xxx_old.txt
> delete mode 100644 drivers/scsi/aic7xxx_old.c
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx.h
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx.reg
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx.seq
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx_proc.c
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx_reg.h
> delete mode 100644 drivers/scsi/aic7xxx_old/aic7xxx_seq.c
> delete mode 100644 drivers/scsi/aic7xxx_old/scsi_message.h
> delete mode 100644 drivers/scsi/aic7xxx_old/sequencer.h
>
>diff --git a/Documentation/scsi/00-INDEX b/Documentation/scsi/00-INDEX
>index 9b0787f..2044be5 100644
>--- a/Documentation/scsi/00-INDEX
>+++ b/Documentation/scsi/00-INDEX
>@@ -42,8 +42,6 @@ aic79xx.txt
> 	- Adaptec Ultra320 SCSI host adapters
> aic7xxx.txt
> 	- info on driver for Adaptec controllers
>-aic7xxx_old.txt
>-	- info on driver for Adaptec controllers, old generation
> arcmsr_spec.txt
> 	- ARECA FIRMWARE SPEC (for IOP331 adapter)
> dc395x.txt
>diff --git a/Documentation/scsi/aic7xxx_old.txt b/Documentation/scsi/aic7xxx_old.txt
>deleted file mode 100644
>index ecfc474..0000000
>diff --git a/MAINTAINERS b/MAINTAINERS
>index e61c2e8..c79be42 100644
>--- a/MAINTAINERS
>+++ b/MAINTAINERS
>@@ -470,7 +470,6 @@ M:	Hannes Reinecke <hare@xxxxxxx>
> L:	linux-scsi@xxxxxxxxxxxxxxx
> S:	Maintained
> F:	drivers/scsi/aic7xxx/
>-F:	drivers/scsi/aic7xxx_old/
> 
> AIMSLAB FM RADIO RECEIVER DRIVER
> M:	Hans Verkuil <hverkuil@xxxxxxxxx>
>diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
>index fe25677..1f02003 100644
>--- a/drivers/scsi/Kconfig
>+++ b/drivers/scsi/Kconfig
>@@ -499,47 +499,6 @@ config SCSI_AACRAID
> 
> 
> source "drivers/scsi/aic7xxx/Kconfig.aic7xxx"
>-
>-config SCSI_AIC7XXX_OLD
>-	tristate "Adaptec AIC7xxx support (old driver)"
>-	depends on (ISA || EISA || PCI ) && SCSI
>-	help
>-	  WARNING This driver is an older aic7xxx driver and is no longer
>-	  under active development.  Adaptec, Inc. is writing a new driver to
>-	  take the place of this one, and it is recommended that whenever
>-	  possible, people should use the new Adaptec written driver instead
>-	  of this one.  This driver will eventually be phased out entirely.
>-
>-	  This is support for the various aic7xxx based Adaptec SCSI
>-	  controllers. These include the 274x EISA cards; 284x VLB cards;
>-	  2902, 2910, 293x, 294x, 394x, 3985 and several other PCI and
>-	  motherboard based SCSI controllers from Adaptec. It does not support
>-	  the AAA-13x RAID controllers from Adaptec, nor will it likely ever
>-	  support them. It does not support the 2920 cards from Adaptec that
>-	  use the Future Domain SCSI controller chip. For those cards, you
>-	  need the "Future Domain 16xx SCSI support" driver.
>-
>-	  In general, if the controller is based on an Adaptec SCSI controller
>-	  chip from the aic777x series or the aic78xx series, this driver
>-	  should work. The only exception is the 7810 which is specifically
>-	  not supported (that's the RAID controller chip on the AAA-13x
>-	  cards).
>-
>-	  Note that the AHA2920 SCSI host adapter is *not* supported by this
>-	  driver; choose "Future Domain 16xx SCSI support" instead if you have
>-	  one of those.
>-
>-	  Information on the configuration options for this controller can be
>-	  found by checking the help file for each of the available
>-	  configuration options. You should read
>-	  <file:Documentation/scsi/aic7xxx_old.txt> at a minimum before
>-	  contacting the maintainer with any questions.  The SCSI-HOWTO,
>-	  available from <http://www.tldp.org/docs.html#howto>, can also
>-	  be of great help.
>-
>-	  To compile this driver as a module, choose M here: the
>-	  module will be called aic7xxx_old.
>-
> source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
> source "drivers/scsi/aic94xx/Kconfig"
> source "drivers/scsi/mvsas/Kconfig"
>diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
>index 149bb6b..e172d4f 100644
>--- a/drivers/scsi/Makefile
>+++ b/drivers/scsi/Makefile
>@@ -70,7 +70,6 @@ obj-$(CONFIG_SCSI_AHA1740)	+= aha1740.o
> obj-$(CONFIG_SCSI_AIC7XXX)	+= aic7xxx/
> obj-$(CONFIG_SCSI_AIC79XX)	+= aic7xxx/
> obj-$(CONFIG_SCSI_AACRAID)	+= aacraid/
>-obj-$(CONFIG_SCSI_AIC7XXX_OLD)	+= aic7xxx_old.o
> obj-$(CONFIG_SCSI_AIC94XX)	+= aic94xx/
> obj-$(CONFIG_SCSI_PM8001)	+= pm8001/
> obj-$(CONFIG_SCSI_ISCI)		+= isci/
>diff --git a/drivers/scsi/aic7xxx_old.c b/drivers/scsi/aic7xxx_old.c
>deleted file mode 100644
>index 33ec9c6..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.h b/drivers/scsi/aic7xxx_old/aic7xxx.h
>deleted file mode 100644
>index 0116c81..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.reg b/drivers/scsi/aic7xxx_old/aic7xxx.reg
>deleted file mode 100644
>index f67b4bc..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.seq b/drivers/scsi/aic7xxx_old/aic7xxx.seq
>deleted file mode 100644
>index dc3bb81..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c
>deleted file mode 100644
>index 976f45c..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h b/drivers/scsi/aic7xxx_old/aic7xxx_reg.h
>deleted file mode 100644
>index 27f2334..0000000
>diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c b/drivers/scsi/aic7xxx_old/aic7xxx_seq.c
>deleted file mode 100644
>index e1bc140..0000000
>diff --git a/drivers/scsi/aic7xxx_old/scsi_message.h b/drivers/scsi/aic7xxx_old/scsi_message.h
>deleted file mode 100644
>index a79f89c..0000000
>diff --git a/drivers/scsi/aic7xxx_old/sequencer.h b/drivers/scsi/aic7xxx_old/sequencer.h
>deleted file mode 100644
>index ee66855..0000000
>-- 
>1.8.1.2
>
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