[PATCH 09/28] Remove ATHEROS_AR231X

[PATCH 09/28] Remove ATHEROS_AR231X

[Richard Weinberger]

The symbol is an orphan, get rid of it.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
 drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
 drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
 drivers/net/wireless/ath/ath5k/led.c   |  7 -------
 4 files changed, 5 insertions(+), 54 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/Kconfig b/drivers/net/wireless/ath/ath5k/Kconfig
index c9f81a3..3bc0d57 100644
--- a/drivers/net/wireless/ath/ath5k/Kconfig
+++ b/drivers/net/wireless/ath/ath5k/Kconfig
@@ -1,13 +1,13 @@
 config ATH5K
 	tristate "Atheros 5xxx wireless cards support"
-	depends on (PCI || ATHEROS_AR231X) && MAC80211
+	depends on PCI && MAC80211
 	select ATH_COMMON
 	select MAC80211_LEDS
 	select LEDS_CLASS
 	select NEW_LEDS
 	select AVERAGE
-	select ATH5K_AHB if (ATHEROS_AR231X && !PCI)
-	select ATH5K_PCI if (!ATHEROS_AR231X && PCI)
+	select ATH5K_AHB if !PCI
+	select ATH5K_PCI if PCI
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros 5xxx chipset.
@@ -54,14 +54,14 @@ config ATH5K_TRACER
 
 config ATH5K_AHB
 	bool "Atheros 5xxx AHB bus support"
-	depends on (ATHEROS_AR231X && !PCI)
+	depends on !PCI
 	---help---
 	  This adds support for WiSoC type chipsets of the 5xxx Atheros
 	  family.
 
 config ATH5K_PCI
 	bool "Atheros 5xxx PCI bus support"
-	depends on (!ATHEROS_AR231X && PCI)
+	depends on PCI
 	---help---
 	  This adds support for PCI type chipsets of the 5xxx Atheros
 	  family.
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 74bd54d..5f2843c 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1646,32 +1646,6 @@ static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
 	return &(ath5k_hw_common(ah)->regulatory);
 }
 
-#ifdef CONFIG_ATHEROS_AR231X
-#define AR5K_AR2315_PCI_BASE	((void __iomem *)0xb0100000)
-
-static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
-{
-	/* On AR2315 and AR2317 the PCI clock domain registers
-	 * are outside of the WMAC register space */
-	if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
-	    (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
-		return AR5K_AR2315_PCI_BASE + reg;
-
-	return ah->iobase + reg;
-}
-
-static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
-{
-	return ioread32(ath5k_ahb_reg(ah, reg));
-}
-
-static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
-{
-	iowrite32(val, ath5k_ahb_reg(ah, reg));
-}
-
-#else
-
 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
 {
 	return ioread32(ah->iobase + reg);
@@ -1682,8 +1656,6 @@ static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
 	iowrite32(val, ah->iobase + reg);
 }
 
-#endif
-
 static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
 {
 	return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index ef35da8..d43e546 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -99,15 +99,6 @@ static int ath5k_reset(struct ath5k_hw *ah, struct ieee80211_channel *chan,
 
 /* Known SREVs */
 static const struct ath5k_srev_name srev_names[] = {
-#ifdef CONFIG_ATHEROS_AR231X
-	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R2 },
-	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R7 },
-	{ "2313",	AR5K_VERSION_MAC,	AR5K_SREV_AR2313_R8 },
-	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R6 },
-	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R7 },
-	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R1 },
-	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R2 },
-#else
 	{ "5210",	AR5K_VERSION_MAC,	AR5K_SREV_AR5210 },
 	{ "5311",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311 },
 	{ "5311A",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311A },
@@ -126,7 +117,6 @@ static const struct ath5k_srev_name srev_names[] = {
 	{ "5418",	AR5K_VERSION_MAC,	AR5K_SREV_AR5418 },
 	{ "2425",	AR5K_VERSION_MAC,	AR5K_SREV_AR2425 },
 	{ "2417",	AR5K_VERSION_MAC,	AR5K_SREV_AR2417 },
-#endif
 	{ "xxxxx",	AR5K_VERSION_MAC,	AR5K_SREV_UNKNOWN },
 	{ "5110",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5110 },
 	{ "5111",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5111 },
@@ -142,10 +132,6 @@ static const struct ath5k_srev_name srev_names[] = {
 	{ "5413",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5413 },
 	{ "5424",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5424 },
 	{ "5133",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5133 },
-#ifdef CONFIG_ATHEROS_AR231X
-	{ "2316",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2316 },
-	{ "2317",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2317 },
-#endif
 	{ "xxxxx",	AR5K_VERSION_RAD,	AR5K_SREV_UNKNOWN },
 };
 
diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c
index f77ef36..c36a98f 100644
--- a/drivers/net/wireless/ath/ath5k/led.c
+++ b/drivers/net/wireless/ath/ath5k/led.c
@@ -162,20 +162,13 @@ int ath5k_init_leds(struct ath5k_hw *ah)
 {
 	int ret = 0;
 	struct ieee80211_hw *hw = ah->hw;
-#ifndef CONFIG_ATHEROS_AR231X
-	struct pci_dev *pdev = ah->pdev;
-#endif
 	char name[ATH5K_LED_MAX_NAME_LEN + 1];
 	const struct pci_device_id *match;
 
 	if (!ah->pdev)
 		return 0;
 
-#ifdef CONFIG_ATHEROS_AR231X
-	match = NULL;
-#else
 	match = pci_match_id(&ath5k_led_devices[0], pdev);
-#endif
 	if (match) {
 		__set_bit(ATH_STAT_LEDSOFT, ah->status);
 		ah->led_pin = ATH_PIN(match->driver_data);
-- 
1.8.4.2

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Joe Perches]

On Sun, 2014-02-09 at 19:47 +0100, Richard Weinberger wrote:
> The symbol is an orphan, get rid of it.

This description seems very incomplete as the symbol
is being used quite a bit and the code the symbol
controls is being deleted as well as the symbol.

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

On Sun, 2014-02-09 at 11:09 -0800, Joe Perches wrote:
> On Sun, 2014-02-09 at 19:47 +0100, Richard Weinberger wrote:
> > The symbol is an orphan, get rid of it.
> 
> This description seems very incomplete as the symbol
> is being used quite a bit and the code the symbol
> controls is being deleted as well as the symbol.

Just yesterday I once again raised this issue (see
https://lkml.org/lkml/2014/2/8/248 ). My patch - which dates form May
2013 - removes quite a bit more than Richard's patch.


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Richard Weinberger]

Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>> The symbol is an orphan, get rid of it.
>>
>> Signed-off-by: Richard Weinberger <richard@nod.at>
>> ---
>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>
> 
> This code is used in OpenWrt with an out of tree arch code for the
> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
> this code to mainline Linux kernel, because of lack of time/interest.

Sorry, we don't maintain out of tree code.

Thanks,
//richard

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>> The symbol is an orphan, get rid of it.
>>>
>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>> ---
>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>
>>
>> This code is used in OpenWrt with an out of tree arch code for the
>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>> this code to mainline Linux kernel, because of lack of time/interest.
>
> Sorry, we don't maintain out of tree code.
>

Oleksij, Jonathan do you still working to make ar231x devices work
with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
team would like to add upstream support?

1. https://lkml.org/lkml/2013/5/13/321
2. https://lkml.org/lkml/2013/5/13/358

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Oleksij Rempel]

[-- Attachment #1: Type: text/plain, Size: 1621 bytes --]

Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>>> The symbol is an orphan, get rid of it.
>>>>
>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>>> ---
>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>>
>>>
>>> This code is used in OpenWrt with an out of tree arch code for the
>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>>> this code to mainline Linux kernel, because of lack of time/interest.
>>
>> Sorry, we don't maintain out of tree code.
>>
> 
> Oleksij, Jonathan do you still working to make ar231x devices work
> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
> team would like to add upstream support?
> 
> 1. https://lkml.org/lkml/2013/5/13/321
> 2. https://lkml.org/lkml/2013/5/13/358
> 

Hi,
my current target was to provide barebox and openocd support.
- ar2313 is already upstream on barebox.
- ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
- openocd (EJTAG) support is ready and i'll push it ASUP.

I hope Jonathan do kernel part. If not, i can provide some work, since i
have testing boards and expiriance on this hardware.

-- 
Regards,
Oleksij


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 278 bytes --]

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-02-10 16:17 GMT+04:00 Oleksij Rempel <linux@rempel-privat.de>:
> Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
>> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
>>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>>>> The symbol is an orphan, get rid of it.
>>>>>
>>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>>>> ---
>>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>>>
>>>>
>>>> This code is used in OpenWrt with an out of tree arch code for the
>>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>>>> this code to mainline Linux kernel, because of lack of time/interest.
>>>
>>> Sorry, we don't maintain out of tree code.
>>>
>>
>> Oleksij, Jonathan do you still working to make ar231x devices work
>> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
>> team would like to add upstream support?
>>
>> 1. https://lkml.org/lkml/2013/5/13/321
>> 2. https://lkml.org/lkml/2013/5/13/358
>>
>
> Hi,
> my current target was to provide barebox and openocd support.
> - ar2313 is already upstream on barebox.
> - ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
> - openocd (EJTAG) support is ready and i'll push it ASUP.
>
WOW, Impressive.

> I hope Jonathan do kernel part. If not, i can provide some work, since i
> have testing boards and expiriance on this hardware.
>
If you need, I can test kernel part, or even do some porting work. I
have some AR231x based boards, e.g. Ubnt LS2 and NS2.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Florian Fainelli]

2014-02-10 4:38 GMT-08:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
> 2014-02-10 16:17 GMT+04:00 Oleksij Rempel <linux@rempel-privat.de>:
>> Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
>>> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
>>>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>>>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>>>>> The symbol is an orphan, get rid of it.
>>>>>>
>>>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>>>>> ---
>>>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>>>>
>>>>>
>>>>> This code is used in OpenWrt with an out of tree arch code for the
>>>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>>>>> this code to mainline Linux kernel, because of lack of time/interest.
>>>>
>>>> Sorry, we don't maintain out of tree code.
>>>>
>>>
>>> Oleksij, Jonathan do you still working to make ar231x devices work
>>> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
>>> team would like to add upstream support?
>>>
>>> 1. https://lkml.org/lkml/2013/5/13/321
>>> 2. https://lkml.org/lkml/2013/5/13/358
>>>
>>
>> Hi,
>> my current target was to provide barebox and openocd support.
>> - ar2313 is already upstream on barebox.
>> - ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
>> - openocd (EJTAG) support is ready and i'll push it ASUP.
>>
> WOW, Impressive.

That's a nice toy project, although since there are is an existing
bootloader with sources, I would have shifted the priority towards
getting the kernel support merged such that the bootloader can be used
for something. BTW I sent a few devices to Jonathan, not sure if he
ever got those...

>
>> I hope Jonathan do kernel part. If not, i can provide some work, since i
>> have testing boards and expiriance on this hardware.
>>
> If you need, I can test kernel part, or even do some porting work. I
> have some AR231x based boards, e.g. Ubnt LS2 and NS2.

I guess you could start splitting the OpenWrt patches into a format
that makes them suitable for being merged upstream and starting with
the MIPS parts. There might be a bunch of checkpatch.pl cleanup work
to do before getting those submitted.
-- 
Florian

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-02-11 2:37 GMT+04:00 Florian Fainelli <florian@openwrt.org>:
> 2014-02-10 4:38 GMT-08:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
>> 2014-02-10 16:17 GMT+04:00 Oleksij Rempel <linux@rempel-privat.de>:
>>> Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
>>>> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
>>>>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>>>>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>>>>>> The symbol is an orphan, get rid of it.
>>>>>>>
>>>>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>>>>>> ---
>>>>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>>>>>
>>>>>>
>>>>>> This code is used in OpenWrt with an out of tree arch code for the
>>>>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>>>>>> this code to mainline Linux kernel, because of lack of time/interest.
>>>>>
>>>>> Sorry, we don't maintain out of tree code.
>>>>>
>>>>
>>>> Oleksij, Jonathan do you still working to make ar231x devices work
>>>> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
>>>> team would like to add upstream support?
>>>>
>>>> 1. https://lkml.org/lkml/2013/5/13/321
>>>> 2. https://lkml.org/lkml/2013/5/13/358
>>>>
>>>
>>> Hi,
>>> my current target was to provide barebox and openocd support.
>>> - ar2313 is already upstream on barebox.
>>> - ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
>>> - openocd (EJTAG) support is ready and i'll push it ASUP.
>>>
>> WOW, Impressive.
>
> That's a nice toy project, although since there are is an existing
> bootloader with sources, I would have shifted the priority towards
> getting the kernel support merged such that the bootloader can be used
> for something. BTW I sent a few devices to Jonathan, not sure if he
> ever got those...
>
>>
>>> I hope Jonathan do kernel part. If not, i can provide some work, since i
>>> have testing boards and expiriance on this hardware.
>>>
>> If you need, I can test kernel part, or even do some porting work. I
>> have some AR231x based boards, e.g. Ubnt LS2 and NS2.
>
> I guess you could start splitting the OpenWrt patches into a format
> that makes them suitable for being merged upstream and starting with
> the MIPS parts. There might be a bunch of checkpatch.pl cleanup work
> to do before getting those submitted.

I will do that if Jonathan does not have a working solution, which he
would like to push upstream. So, let's wait for his reply.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-02-11 3:43 GMT+04:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
> 2014-02-11 2:37 GMT+04:00 Florian Fainelli <florian@openwrt.org>:
>> 2014-02-10 4:38 GMT-08:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
>>> 2014-02-10 16:17 GMT+04:00 Oleksij Rempel <linux@rempel-privat.de>:
>>>> Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
>>>>> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
>>>>>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
>>>>>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
>>>>>>>> The symbol is an orphan, get rid of it.
>>>>>>>>
>>>>>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
>>>>>>>> ---
>>>>>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
>>>>>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
>>>>>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
>>>>>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
>>>>>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
>>>>>>>>
>>>>>>>
>>>>>>> This code is used in OpenWrt with an out of tree arch code for the
>>>>>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
>>>>>>> this code to mainline Linux kernel, because of lack of time/interest.
>>>>>>
>>>>>> Sorry, we don't maintain out of tree code.
>>>>>>
>>>>>
>>>>> Oleksij, Jonathan do you still working to make ar231x devices work
>>>>> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
>>>>> team would like to add upstream support?
>>>>>
>>>>> 1. https://lkml.org/lkml/2013/5/13/321
>>>>> 2. https://lkml.org/lkml/2013/5/13/358
>>>>>
>>>>
>>>> Hi,
>>>> my current target was to provide barebox and openocd support.
>>>> - ar2313 is already upstream on barebox.
>>>> - ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
>>>> - openocd (EJTAG) support is ready and i'll push it ASUP.
>>>>
>>> WOW, Impressive.
>>
>> That's a nice toy project, although since there are is an existing
>> bootloader with sources, I would have shifted the priority towards
>> getting the kernel support merged such that the bootloader can be used
>> for something. BTW I sent a few devices to Jonathan, not sure if he
>> ever got those...
>>
>>>
>>>> I hope Jonathan do kernel part. If not, i can provide some work, since i
>>>> have testing boards and expiriance on this hardware.
>>>>
>>> If you need, I can test kernel part, or even do some porting work. I
>>> have some AR231x based boards, e.g. Ubnt LS2 and NS2.
>>
>> I guess you could start splitting the OpenWrt patches into a format
>> that makes them suitable for being merged upstream and starting with
>> the MIPS parts. There might be a bunch of checkpatch.pl cleanup work
>> to do before getting those submitted.
>
> I will do that if Jonathan does not have a working solution, which he
> would like to push upstream. So, let's wait for his reply.
>

John, can you delay the merging of this patch for a few months, I will
try to prepare the necessary patches to add AR231x architecture to the
kernel and send them to linux-mips.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[John W. Linville]

On Wed, Feb 12, 2014 at 02:50:30PM +0400, Sergey Ryazanov wrote:
> 2014-02-11 3:43 GMT+04:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
> > 2014-02-11 2:37 GMT+04:00 Florian Fainelli <florian@openwrt.org>:
> >> 2014-02-10 4:38 GMT-08:00 Sergey Ryazanov <ryazanov.s.a@gmail.com>:
> >>> 2014-02-10 16:17 GMT+04:00 Oleksij Rempel <linux@rempel-privat.de>:
> >>>> Am 10.02.2014 13:05, schrieb Sergey Ryazanov:
> >>>>> 2014-02-10 0:03 GMT+04:00 Richard Weinberger <richard@nod.at>:
> >>>>>> Am 09.02.2014 20:18, schrieb Hauke Mehrtens:
> >>>>>>> On 02/09/2014 07:47 PM, Richard Weinberger wrote:
> >>>>>>>> The symbol is an orphan, get rid of it.
> >>>>>>>>
> >>>>>>>> Signed-off-by: Richard Weinberger <richard@nod.at>
> >>>>>>>> ---
> >>>>>>>>  drivers/net/wireless/ath/ath5k/Kconfig | 10 +++++-----
> >>>>>>>>  drivers/net/wireless/ath/ath5k/ath5k.h | 28 ----------------------------
> >>>>>>>>  drivers/net/wireless/ath/ath5k/base.c  | 14 --------------
> >>>>>>>>  drivers/net/wireless/ath/ath5k/led.c   |  7 -------
> >>>>>>>>  4 files changed, 5 insertions(+), 54 deletions(-)
> >>>>>>>>
> >>>>>>>
> >>>>>>> This code is used in OpenWrt with an out of tree arch code for the
> >>>>>>> Atheros 231x/531x SoC. [0] I do not think anyone is working on adding
> >>>>>>> this code to mainline Linux kernel, because of lack of time/interest.
> >>>>>>
> >>>>>> Sorry, we don't maintain out of tree code.
> >>>>>>
> >>>>>
> >>>>> Oleksij, Jonathan do you still working to make ar231x devices work
> >>>>> with upstream, since your posts [1, 2]? Or may be someone from OpenWRT
> >>>>> team would like to add upstream support?
> >>>>>
> >>>>> 1. https://lkml.org/lkml/2013/5/13/321
> >>>>> 2. https://lkml.org/lkml/2013/5/13/358
> >>>>>
> >>>>
> >>>> Hi,
> >>>> my current target was to provide barebox and openocd support.
> >>>> - ar2313 is already upstream on barebox.
> >>>> - ar2315-2318 (barebox) awaiting review by Anthony Pavlov.
> >>>> - openocd (EJTAG) support is ready and i'll push it ASUP.
> >>>>
> >>> WOW, Impressive.
> >>
> >> That's a nice toy project, although since there are is an existing
> >> bootloader with sources, I would have shifted the priority towards
> >> getting the kernel support merged such that the bootloader can be used
> >> for something. BTW I sent a few devices to Jonathan, not sure if he
> >> ever got those...
> >>
> >>>
> >>>> I hope Jonathan do kernel part. If not, i can provide some work, since i
> >>>> have testing boards and expiriance on this hardware.
> >>>>
> >>> If you need, I can test kernel part, or even do some porting work. I
> >>> have some AR231x based boards, e.g. Ubnt LS2 and NS2.
> >>
> >> I guess you could start splitting the OpenWrt patches into a format
> >> that makes them suitable for being merged upstream and starting with
> >> the MIPS parts. There might be a bunch of checkpatch.pl cleanup work
> >> to do before getting those submitted.
> >
> > I will do that if Jonathan does not have a working solution, which he
> > would like to push upstream. So, let's wait for his reply.
> >
> 
> John, can you delay the merging of this patch for a few months, I will
> try to prepare the necessary patches to add AR231x architecture to the
> kernel and send them to linux-mips.

OK -- looking forward to your patches.

-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

On Thu, 2014-02-13 at 15:14 -0500, John W. Linville wrote:
> On Wed, Feb 12, 2014 at 02:50:30PM +0400, Sergey Ryazanov wrote:
> > John, can you delay the merging of this patch for a few months, I will
> > try to prepare the necessary patches to add AR231x architecture to the
> > kernel and send them to linux-mips.
> 
> OK -- looking forward to your patches.

So am I. Is there any news on this front?


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-04-15 21:08 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> On Thu, 2014-02-13 at 15:14 -0500, John W. Linville wrote:
>> On Wed, Feb 12, 2014 at 02:50:30PM +0400, Sergey Ryazanov wrote:
>> > John, can you delay the merging of this patch for a few months, I will
>> > try to prepare the necessary patches to add AR231x architecture to the
>> > kernel and send them to linux-mips.
>>
>> OK -- looking forward to your patches.
>
> So am I. Is there any news on this front?
>

Work still in progress :(

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

Jiri, Nick, Luis, John,

On Wed, 2014-04-16 at 13:20 +0400, Sergey Ryazanov wrote:
> 2014-04-15 21:08 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> > On Thu, 2014-02-13 at 15:14 -0500, John W. Linville wrote:
> >> On Wed, Feb 12, 2014 at 02:50:30PM +0400, Sergey Ryazanov wrote:
> >> > John, can you delay the merging of this patch for a few months, I will
> >> > try to prepare the necessary patches to add AR231x architecture to the
> >> > kernel and send them to linux-mips.
> >>
> >> OK -- looking forward to your patches.
> >
> > So am I. Is there any news on this front?
> >
> 
> Work still in progress :(

ATHEROS_AR231X and the things depending on it, like AHB bus support,
have been discussed for three years now. When will you (re)consider a
patch to remove all currently dead code?

And to state the obvious: AHB bus support, and the other code depending
on ATHEROS_AR231X, can always be re-added once ATHEROS_AR231X gets added
to the tree.


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

Hi Paul,

2014-06-18 14:25 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> Jiri, Nick, Luis, John,
>
> On Wed, 2014-04-16 at 13:20 +0400, Sergey Ryazanov wrote:
>> 2014-04-15 21:08 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
>> > On Thu, 2014-02-13 at 15:14 -0500, John W. Linville wrote:
>> >> On Wed, Feb 12, 2014 at 02:50:30PM +0400, Sergey Ryazanov wrote:
>> >> > John, can you delay the merging of this patch for a few months, I will
>> >> > try to prepare the necessary patches to add AR231x architecture to the
>> >> > kernel and send them to linux-mips.
>> >>
>> >> OK -- looking forward to your patches.
>> >
>> > So am I. Is there any news on this front?
>> >
>>
>> Work still in progress :(
>
> ATHEROS_AR231X and the things depending on it, like AHB bus support,
> have been discussed for three years now. When will you (re)consider a
> patch to remove all currently dead code?
>
> And to state the obvious: AHB bus support, and the other code depending
> on ATHEROS_AR231X, can always be re-added once ATHEROS_AR231X gets added
> to the tree.
>

Work in progress, I don't stop it. Just work is progressing slower
than I had planned. I am already cleanup the code (mostly checkpatch
errors and warnings) and send patches to OpenWRT tree. Further I plan
to simplify initialization and I will be ready to send patches
upstream.

I need a couple of weeks for this. Is its reasonable time to not make
a mess of remove/add commits?

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

Hi Sergey,

On Wed, 2014-06-18 at 15:10 +0400, Sergey Ryazanov wrote:
> 2014-06-18 14:25 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> > ATHEROS_AR231X and the things depending on it, like AHB bus support,
> > have been discussed for three years now. When will you (re)consider a
> > patch to remove all currently dead code?
> >
> > And to state the obvious: AHB bus support, and the other code depending
> > on ATHEROS_AR231X, can always be re-added once ATHEROS_AR231X gets added
> > to the tree.
> 
> Work in progress, I don't stop it. Just work is progressing slower
> than I had planned. I am already cleanup the code (mostly checkpatch
> errors and warnings) and send patches to OpenWRT tree. Further I plan
> to simplify initialization and I will be ready to send patches
> upstream.

That's good to hear.

> I need a couple of weeks for this. Is its reasonable time to not make
> a mess of remove/add commits?

Removing the code just to re-add it shortly after would indeed be
awkward.

Having this conversation every rc1 is getting a bit silly. Could Jiri
e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
submitted?

Thanks,


Paul Bolle

Re: [ath5k-devel] [PATCH 09/28] Remove ATHEROS_AR231X

[Holger Schurig]

> Having this conversation every rc1 is getting a bit silly.

Hmm, wouldn't the obvious thing than to add the driver in it's current
form into staging?  Is it well-separated from the rest of  Atheros
WLAN drivers ?

Re: [ath5k-devel] [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

On Wed, 2014-06-18 at 15:15 +0200, Holger Schurig wrote:
> Hmm, wouldn't the obvious thing than to add the driver in it's current
> form into staging?  Is it well-separated from the rest of  Atheros
> WLAN drivers ?

A quick glance at the code shows an include of ar231x_platform.h (which
doesn't exist) and uses of struct ar231x_board_config (ditto). So it
won't build as is and therefor needs work to qualify for staging.


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

Jiri, Nick, Luis, John,

On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
> Having this conversation every rc1 is getting a bit silly. Could Jiri
> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
> submitted?

I waited until rc3. Have you seen any activity on this front? If not,
should I resend the patch that removes the code in mainline that depends
on ATHEROS_AR231X (ie, AHB bus support)?

And to repeat the obvious: the removed code can always be re-added once
ATHEROS_AR231X gets actually added to the tree.

Thanks,


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

Hello Paul,

2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
> Jiri, Nick, Luis, John,
>
> On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
>> Having this conversation every rc1 is getting a bit silly. Could Jiri
>> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
>> submitted?
>
> I waited until rc3. Have you seen any activity on this front? If not,
> should I resend the patch that removes the code in mainline that depends
> on ATHEROS_AR231X (ie, AHB bus support)?
>
Recent activity always could be found in [1]. Now I finish another one
round of cleanups and have a plan to fix several things (you can
always find something that you really want to improve). But if you
insist I could immediately switch to "send upstream" mode. And seems
that this would be better approach.

1. https://dev.openwrt.org/log/trunk/target/linux/atheros

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

Hi Sergey,

On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
> > On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
> >> Having this conversation every rc1 is getting a bit silly. Could Jiri
> >> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
> >> submitted?
> >
> > I waited until rc3. Have you seen any activity on this front? If not,
> > should I resend the patch that removes the code in mainline that depends
> > on ATHEROS_AR231X (ie, AHB bus support)?
> >
> Recent activity always could be found in [1]. Now I finish another one
> round of cleanups and have a plan to fix several things (you can
> always find something that you really want to improve). But if you
> insist I could immediately switch to "send upstream" mode. And seems
> that this would be better approach.
> 
> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros

And where can the related PULL requests or patch submissions be found?


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> Hi Sergey,
>
> On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
>> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
>> > On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
>> >> Having this conversation every rc1 is getting a bit silly. Could Jiri
>> >> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
>> >> submitted?
>> >
>> > I waited until rc3. Have you seen any activity on this front? If not,
>> > should I resend the patch that removes the code in mainline that depends
>> > on ATHEROS_AR231X (ie, AHB bus support)?
>> >
>> Recent activity always could be found in [1]. Now I finish another one
>> round of cleanups and have a plan to fix several things (you can
>> always find something that you really want to improve). But if you
>> insist I could immediately switch to "send upstream" mode. And seems
>> that this would be better approach.
>>
>> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
>
> And where can the related PULL requests or patch submissions be found?
>
I have not sent patches yet, since I thought that it would be easier
to cleanup them in openwrt tree and then send them upstream.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[John W. Linville]

On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> > Hi Sergey,
> >
> > On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
> >> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
> >> > On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
> >> >> Having this conversation every rc1 is getting a bit silly. Could Jiri
> >> >> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
> >> >> submitted?
> >> >
> >> > I waited until rc3. Have you seen any activity on this front? If not,
> >> > should I resend the patch that removes the code in mainline that depends
> >> > on ATHEROS_AR231X (ie, AHB bus support)?
> >> >
> >> Recent activity always could be found in [1]. Now I finish another one
> >> round of cleanups and have a plan to fix several things (you can
> >> always find something that you really want to improve). But if you
> >> insist I could immediately switch to "send upstream" mode. And seems
> >> that this would be better approach.
> >>
> >> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
> >
> > And where can the related PULL requests or patch submissions be found?
> >
> I have not sent patches yet, since I thought that it would be easier
> to cleanup them in openwrt tree and then send them upstream.

That excuse has worn a bit thin.  Perhaps Paul should repost his
removal and you can add a revert to the start of your patch series?

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

[PATCH] [RESEND] ath5k: Remove AHB bus support

[Paul Bolle]

AHB bus support was added in v2.6.38, through commit a0b907ee2a71
("ath5k: Add AHB bus support."). That code can only be build if the
Kconfig symbol ATHEROS_AR231X is set. But that symbol has never been
added to the tree. So AHB bus support has always been dead code.

Let's remove all code that depends on ATHEROS_AR231X. If that symbol
ever gets added to the tree the AHB bus support can be re-added too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
---
First sent in https://lkml.org/lkml/2013/5/13/303 . Updated on top of
next-20140909.

Build tested only (no access to this hardware).

 drivers/net/wireless/ath/ath5k/Kconfig  |  14 +-
 drivers/net/wireless/ath/ath5k/Makefile |   1 -
 drivers/net/wireless/ath/ath5k/ahb.c    | 234 --------------------------------
 drivers/net/wireless/ath/ath5k/ath5k.h  |  28 ----
 drivers/net/wireless/ath/ath5k/base.c   |  14 --
 drivers/net/wireless/ath/ath5k/led.c    |   6 -
 6 files changed, 3 insertions(+), 294 deletions(-)
 delete mode 100644 drivers/net/wireless/ath/ath5k/ahb.c

diff --git a/drivers/net/wireless/ath/ath5k/Kconfig b/drivers/net/wireless/ath/ath5k/Kconfig
index c9f81a388f15..93caf8e68901 100644
--- a/drivers/net/wireless/ath/ath5k/Kconfig
+++ b/drivers/net/wireless/ath/ath5k/Kconfig
@@ -1,13 +1,12 @@
 config ATH5K
 	tristate "Atheros 5xxx wireless cards support"
-	depends on (PCI || ATHEROS_AR231X) && MAC80211
+	depends on PCI && MAC80211
 	select ATH_COMMON
 	select MAC80211_LEDS
 	select LEDS_CLASS
 	select NEW_LEDS
 	select AVERAGE
-	select ATH5K_AHB if (ATHEROS_AR231X && !PCI)
-	select ATH5K_PCI if (!ATHEROS_AR231X && PCI)
+	select ATH5K_PCI
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros 5xxx chipset.
@@ -52,16 +51,9 @@ config ATH5K_TRACER
 
 	  If unsure, say N.
 
-config ATH5K_AHB
-	bool "Atheros 5xxx AHB bus support"
-	depends on (ATHEROS_AR231X && !PCI)
-	---help---
-	  This adds support for WiSoC type chipsets of the 5xxx Atheros
-	  family.
-
 config ATH5K_PCI
 	bool "Atheros 5xxx PCI bus support"
-	depends on (!ATHEROS_AR231X && PCI)
+	depends on PCI
 	---help---
 	  This adds support for PCI type chipsets of the 5xxx Atheros
 	  family.
diff --git a/drivers/net/wireless/ath/ath5k/Makefile b/drivers/net/wireless/ath/ath5k/Makefile
index 1b3a34f7f224..51e2d8668041 100644
--- a/drivers/net/wireless/ath/ath5k/Makefile
+++ b/drivers/net/wireless/ath/ath5k/Makefile
@@ -17,6 +17,5 @@ ath5k-y				+= ani.o
 ath5k-y				+= sysfs.o
 ath5k-y				+= mac80211-ops.o
 ath5k-$(CONFIG_ATH5K_DEBUG)	+= debug.o
-ath5k-$(CONFIG_ATH5K_AHB)	+= ahb.o
 ath5k-$(CONFIG_ATH5K_PCI)	+= pci.o
 obj-$(CONFIG_ATH5K)		+= ath5k.o
diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
deleted file mode 100644
index 79bffe165cab..000000000000
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (c) 2008-2009 Atheros Communications Inc.
- * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/nl80211.h>
-#include <linux/platform_device.h>
-#include <linux/etherdevice.h>
-#include <linux/export.h>
-#include <ar231x_platform.h>
-#include "ath5k.h"
-#include "debug.h"
-#include "base.h"
-#include "reg.h"
-
-/* return bus cachesize in 4B word units */
-static void ath5k_ahb_read_cachesize(struct ath_common *common, int *csz)
-{
-	*csz = L1_CACHE_BYTES >> 2;
-}
-
-static bool
-ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
-{
-	struct ath5k_hw *ah = common->priv;
-	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
-	u16 *eeprom, *eeprom_end;
-
-	eeprom = (u16 *) bcfg->radio;
-	eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
-
-	eeprom += off;
-	if (eeprom > eeprom_end)
-		return false;
-
-	*data = *eeprom;
-	return true;
-}
-
-int ath5k_hw_read_srev(struct ath5k_hw *ah)
-{
-	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
-	ah->ah_mac_srev = bcfg->devid;
-	return 0;
-}
-
-static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
-{
-	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
-	u8 *cfg_mac;
-
-	if (to_platform_device(ah->dev)->id == 0)
-		cfg_mac = bcfg->config->wlan0_mac;
-	else
-		cfg_mac = bcfg->config->wlan1_mac;
-
-	memcpy(mac, cfg_mac, ETH_ALEN);
-	return 0;
-}
-
-static const struct ath_bus_ops ath_ahb_bus_ops = {
-	.ath_bus_type = ATH_AHB,
-	.read_cachesize = ath5k_ahb_read_cachesize,
-	.eeprom_read = ath5k_ahb_eeprom_read,
-	.eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
-};
-
-/*Initialization*/
-static int ath_ahb_probe(struct platform_device *pdev)
-{
-	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
-	struct ath5k_hw *ah;
-	struct ieee80211_hw *hw;
-	struct resource *res;
-	void __iomem *mem;
-	int irq;
-	int ret = 0;
-	u32 reg;
-
-	if (!dev_get_platdata(&pdev->dev)) {
-		dev_err(&pdev->dev, "no platform data specified\n");
-		ret = -EINVAL;
-		goto err_out;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "no memory resource found\n");
-		ret = -ENXIO;
-		goto err_out;
-	}
-
-	mem = ioremap_nocache(res->start, resource_size(res));
-	if (mem == NULL) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		ret = -ENOMEM;
-		goto err_out;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "no IRQ resource found\n");
-		ret = -ENXIO;
-		goto err_iounmap;
-	}
-
-	irq = res->start;
-
-	hw = ieee80211_alloc_hw(sizeof(struct ath5k_hw), &ath5k_hw_ops);
-	if (hw == NULL) {
-		dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
-		ret = -ENOMEM;
-		goto err_iounmap;
-	}
-
-	ah = hw->priv;
-	ah->hw = hw;
-	ah->dev = &pdev->dev;
-	ah->iobase = mem;
-	ah->irq = irq;
-	ah->devid = bcfg->devid;
-
-	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
-		/* Enable WMAC AHB arbitration */
-		reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
-		reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
-		iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
-
-		/* Enable global WMAC swapping */
-		reg = ioread32((void __iomem *) AR5K_AR2315_BYTESWAP);
-		reg |= AR5K_AR2315_BYTESWAP_WMAC;
-		iowrite32(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
-	} else {
-		/* Enable WMAC DMA access (assuming 5312 or 231x*/
-		/* TODO: check other platforms */
-		reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
-		if (to_platform_device(ah->dev)->id == 0)
-			reg |= AR5K_AR5312_ENABLE_WLAN0;
-		else
-			reg |= AR5K_AR5312_ENABLE_WLAN1;
-		iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
-
-		/*
-		 * On a dual-band AR5312, the multiband radio is only
-		 * used as pass-through. Disable 2 GHz support in the
-		 * driver for it
-		 */
-		if (to_platform_device(ah->dev)->id == 0 &&
-		    (bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
-		     (BD_WLAN1 | BD_WLAN0))
-			ah->ah_capabilities.cap_needs_2GHz_ovr = true;
-		else
-			ah->ah_capabilities.cap_needs_2GHz_ovr = false;
-	}
-
-	ret = ath5k_init_ah(ah, &ath_ahb_bus_ops);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
-		ret = -ENODEV;
-		goto err_free_hw;
-	}
-
-	platform_set_drvdata(pdev, hw);
-
-	return 0;
-
- err_free_hw:
-	ieee80211_free_hw(hw);
- err_iounmap:
-        iounmap(mem);
- err_out:
-	return ret;
-}
-
-static int ath_ahb_remove(struct platform_device *pdev)
-{
-	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
-	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
-	struct ath5k_hw *ah;
-	u32 reg;
-
-	if (!hw)
-		return 0;
-
-	ah = hw->priv;
-
-	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
-		/* Disable WMAC AHB arbitration */
-		reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
-		reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
-		iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
-	} else {
-		/*Stop DMA access */
-		reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
-		if (to_platform_device(ah->dev)->id == 0)
-			reg &= ~AR5K_AR5312_ENABLE_WLAN0;
-		else
-			reg &= ~AR5K_AR5312_ENABLE_WLAN1;
-		iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
-	}
-
-	ath5k_deinit_ah(ah);
-	iounmap(ah->iobase);
-	ieee80211_free_hw(hw);
-
-	return 0;
-}
-
-static struct platform_driver ath_ahb_driver = {
-	.probe      = ath_ahb_probe,
-	.remove     = ath_ahb_remove,
-	.driver		= {
-		.name	= "ar231x-wmac",
-		.owner	= THIS_MODULE,
-	},
-};
-
-module_platform_driver(ath_ahb_driver);
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 85316bb3f8c6..ed2468220216 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1647,32 +1647,6 @@ static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
 	return &(ath5k_hw_common(ah)->regulatory);
 }
 
-#ifdef CONFIG_ATHEROS_AR231X
-#define AR5K_AR2315_PCI_BASE	((void __iomem *)0xb0100000)
-
-static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
-{
-	/* On AR2315 and AR2317 the PCI clock domain registers
-	 * are outside of the WMAC register space */
-	if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
-	    (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
-		return AR5K_AR2315_PCI_BASE + reg;
-
-	return ah->iobase + reg;
-}
-
-static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
-{
-	return ioread32(ath5k_ahb_reg(ah, reg));
-}
-
-static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
-{
-	iowrite32(val, ath5k_ahb_reg(ah, reg));
-}
-
-#else
-
 static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
 {
 	return ioread32(ah->iobase + reg);
@@ -1683,8 +1657,6 @@ static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
 	iowrite32(val, ah->iobase + reg);
 }
 
-#endif
-
 static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
 {
 	return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 59a87247aac4..a4a09bb8f2f3 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -99,15 +99,6 @@ static int ath5k_reset(struct ath5k_hw *ah, struct ieee80211_channel *chan,
 
 /* Known SREVs */
 static const struct ath5k_srev_name srev_names[] = {
-#ifdef CONFIG_ATHEROS_AR231X
-	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R2 },
-	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R7 },
-	{ "2313",	AR5K_VERSION_MAC,	AR5K_SREV_AR2313_R8 },
-	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R6 },
-	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R7 },
-	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R1 },
-	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R2 },
-#else
 	{ "5210",	AR5K_VERSION_MAC,	AR5K_SREV_AR5210 },
 	{ "5311",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311 },
 	{ "5311A",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311A },
@@ -126,7 +117,6 @@ static const struct ath5k_srev_name srev_names[] = {
 	{ "5418",	AR5K_VERSION_MAC,	AR5K_SREV_AR5418 },
 	{ "2425",	AR5K_VERSION_MAC,	AR5K_SREV_AR2425 },
 	{ "2417",	AR5K_VERSION_MAC,	AR5K_SREV_AR2417 },
-#endif
 	{ "xxxxx",	AR5K_VERSION_MAC,	AR5K_SREV_UNKNOWN },
 	{ "5110",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5110 },
 	{ "5111",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5111 },
@@ -142,10 +132,6 @@ static const struct ath5k_srev_name srev_names[] = {
 	{ "5413",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5413 },
 	{ "5424",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5424 },
 	{ "5133",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5133 },
-#ifdef CONFIG_ATHEROS_AR231X
-	{ "2316",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2316 },
-	{ "2317",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2317 },
-#endif
 	{ "xxxxx",	AR5K_VERSION_RAD,	AR5K_SREV_UNKNOWN },
 };
 
diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c
index 2062d1190556..0beb7e7d6075 100644
--- a/drivers/net/wireless/ath/ath5k/led.c
+++ b/drivers/net/wireless/ath/ath5k/led.c
@@ -163,20 +163,14 @@ int ath5k_init_leds(struct ath5k_hw *ah)
 {
 	int ret = 0;
 	struct ieee80211_hw *hw = ah->hw;
-#ifndef CONFIG_ATHEROS_AR231X
 	struct pci_dev *pdev = ah->pdev;
-#endif
 	char name[ATH5K_LED_MAX_NAME_LEN + 1];
 	const struct pci_device_id *match;
 
 	if (!ah->pdev)
 		return 0;
 
-#ifdef CONFIG_ATHEROS_AR231X
-	match = NULL;
-#else
 	match = pci_match_id(&ath5k_led_devices[0], pdev);
-#endif
 	if (match) {
 		__set_bit(ATH_STAT_LEDSOFT, ah->status);
 		ah->led_pin = ATH_PIN(match->driver_data);
-- 
1.9.3

Re: [PATCH] [RESEND] ath5k: Remove AHB bus support

[John W. Linville]

OK, I'm merging this...

On Wed, Sep 10, 2014 at 10:53:41AM +0200, Paul Bolle wrote:
> AHB bus support was added in v2.6.38, through commit a0b907ee2a71
> ("ath5k: Add AHB bus support."). That code can only be build if the
> Kconfig symbol ATHEROS_AR231X is set. But that symbol has never been
> added to the tree. So AHB bus support has always been dead code.
> 
> Let's remove all code that depends on ATHEROS_AR231X. If that symbol
> ever gets added to the tree the AHB bus support can be re-added too.
> 
> Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
> ---
> First sent in https://lkml.org/lkml/2013/5/13/303 . Updated on top of
> next-20140909.
> 
> Build tested only (no access to this hardware).
> 
>  drivers/net/wireless/ath/ath5k/Kconfig  |  14 +-
>  drivers/net/wireless/ath/ath5k/Makefile |   1 -
>  drivers/net/wireless/ath/ath5k/ahb.c    | 234 --------------------------------
>  drivers/net/wireless/ath/ath5k/ath5k.h  |  28 ----
>  drivers/net/wireless/ath/ath5k/base.c   |  14 --
>  drivers/net/wireless/ath/ath5k/led.c    |   6 -
>  6 files changed, 3 insertions(+), 294 deletions(-)
>  delete mode 100644 drivers/net/wireless/ath/ath5k/ahb.c
> 
> diff --git a/drivers/net/wireless/ath/ath5k/Kconfig b/drivers/net/wireless/ath/ath5k/Kconfig
> index c9f81a388f15..93caf8e68901 100644
> --- a/drivers/net/wireless/ath/ath5k/Kconfig
> +++ b/drivers/net/wireless/ath/ath5k/Kconfig
> @@ -1,13 +1,12 @@
>  config ATH5K
>  	tristate "Atheros 5xxx wireless cards support"
> -	depends on (PCI || ATHEROS_AR231X) && MAC80211
> +	depends on PCI && MAC80211
>  	select ATH_COMMON
>  	select MAC80211_LEDS
>  	select LEDS_CLASS
>  	select NEW_LEDS
>  	select AVERAGE
> -	select ATH5K_AHB if (ATHEROS_AR231X && !PCI)
> -	select ATH5K_PCI if (!ATHEROS_AR231X && PCI)
> +	select ATH5K_PCI
>  	---help---
>  	  This module adds support for wireless adapters based on
>  	  Atheros 5xxx chipset.
> @@ -52,16 +51,9 @@ config ATH5K_TRACER
>  
>  	  If unsure, say N.
>  
> -config ATH5K_AHB
> -	bool "Atheros 5xxx AHB bus support"
> -	depends on (ATHEROS_AR231X && !PCI)
> -	---help---
> -	  This adds support for WiSoC type chipsets of the 5xxx Atheros
> -	  family.
> -
>  config ATH5K_PCI
>  	bool "Atheros 5xxx PCI bus support"
> -	depends on (!ATHEROS_AR231X && PCI)
> +	depends on PCI
>  	---help---
>  	  This adds support for PCI type chipsets of the 5xxx Atheros
>  	  family.
> diff --git a/drivers/net/wireless/ath/ath5k/Makefile b/drivers/net/wireless/ath/ath5k/Makefile
> index 1b3a34f7f224..51e2d8668041 100644
> --- a/drivers/net/wireless/ath/ath5k/Makefile
> +++ b/drivers/net/wireless/ath/ath5k/Makefile
> @@ -17,6 +17,5 @@ ath5k-y				+= ani.o
>  ath5k-y				+= sysfs.o
>  ath5k-y				+= mac80211-ops.o
>  ath5k-$(CONFIG_ATH5K_DEBUG)	+= debug.o
> -ath5k-$(CONFIG_ATH5K_AHB)	+= ahb.o
>  ath5k-$(CONFIG_ATH5K_PCI)	+= pci.o
>  obj-$(CONFIG_ATH5K)		+= ath5k.o
> diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
> deleted file mode 100644
> index 79bffe165cab..000000000000
> --- a/drivers/net/wireless/ath/ath5k/ahb.c
> +++ /dev/null
> @@ -1,234 +0,0 @@
> -/*
> - * Copyright (c) 2008-2009 Atheros Communications Inc.
> - * Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
> - * Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
> - *
> - * Permission to use, copy, modify, and/or distribute this software for any
> - * purpose with or without fee is hereby granted, provided that the above
> - * copyright notice and this permission notice appear in all copies.
> - *
> - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
> - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> - */
> -
> -#include <linux/nl80211.h>
> -#include <linux/platform_device.h>
> -#include <linux/etherdevice.h>
> -#include <linux/export.h>
> -#include <ar231x_platform.h>
> -#include "ath5k.h"
> -#include "debug.h"
> -#include "base.h"
> -#include "reg.h"
> -
> -/* return bus cachesize in 4B word units */
> -static void ath5k_ahb_read_cachesize(struct ath_common *common, int *csz)
> -{
> -	*csz = L1_CACHE_BYTES >> 2;
> -}
> -
> -static bool
> -ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
> -{
> -	struct ath5k_hw *ah = common->priv;
> -	struct platform_device *pdev = to_platform_device(ah->dev);
> -	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
> -	u16 *eeprom, *eeprom_end;
> -
> -	eeprom = (u16 *) bcfg->radio;
> -	eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
> -
> -	eeprom += off;
> -	if (eeprom > eeprom_end)
> -		return false;
> -
> -	*data = *eeprom;
> -	return true;
> -}
> -
> -int ath5k_hw_read_srev(struct ath5k_hw *ah)
> -{
> -	struct platform_device *pdev = to_platform_device(ah->dev);
> -	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
> -	ah->ah_mac_srev = bcfg->devid;
> -	return 0;
> -}
> -
> -static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
> -{
> -	struct platform_device *pdev = to_platform_device(ah->dev);
> -	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
> -	u8 *cfg_mac;
> -
> -	if (to_platform_device(ah->dev)->id == 0)
> -		cfg_mac = bcfg->config->wlan0_mac;
> -	else
> -		cfg_mac = bcfg->config->wlan1_mac;
> -
> -	memcpy(mac, cfg_mac, ETH_ALEN);
> -	return 0;
> -}
> -
> -static const struct ath_bus_ops ath_ahb_bus_ops = {
> -	.ath_bus_type = ATH_AHB,
> -	.read_cachesize = ath5k_ahb_read_cachesize,
> -	.eeprom_read = ath5k_ahb_eeprom_read,
> -	.eeprom_read_mac = ath5k_ahb_eeprom_read_mac,
> -};
> -
> -/*Initialization*/
> -static int ath_ahb_probe(struct platform_device *pdev)
> -{
> -	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
> -	struct ath5k_hw *ah;
> -	struct ieee80211_hw *hw;
> -	struct resource *res;
> -	void __iomem *mem;
> -	int irq;
> -	int ret = 0;
> -	u32 reg;
> -
> -	if (!dev_get_platdata(&pdev->dev)) {
> -		dev_err(&pdev->dev, "no platform data specified\n");
> -		ret = -EINVAL;
> -		goto err_out;
> -	}
> -
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (res == NULL) {
> -		dev_err(&pdev->dev, "no memory resource found\n");
> -		ret = -ENXIO;
> -		goto err_out;
> -	}
> -
> -	mem = ioremap_nocache(res->start, resource_size(res));
> -	if (mem == NULL) {
> -		dev_err(&pdev->dev, "ioremap failed\n");
> -		ret = -ENOMEM;
> -		goto err_out;
> -	}
> -
> -	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
> -	if (res == NULL) {
> -		dev_err(&pdev->dev, "no IRQ resource found\n");
> -		ret = -ENXIO;
> -		goto err_iounmap;
> -	}
> -
> -	irq = res->start;
> -
> -	hw = ieee80211_alloc_hw(sizeof(struct ath5k_hw), &ath5k_hw_ops);
> -	if (hw == NULL) {
> -		dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
> -		ret = -ENOMEM;
> -		goto err_iounmap;
> -	}
> -
> -	ah = hw->priv;
> -	ah->hw = hw;
> -	ah->dev = &pdev->dev;
> -	ah->iobase = mem;
> -	ah->irq = irq;
> -	ah->devid = bcfg->devid;
> -
> -	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
> -		/* Enable WMAC AHB arbitration */
> -		reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
> -		reg |= AR5K_AR2315_AHB_ARB_CTL_WLAN;
> -		iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
> -
> -		/* Enable global WMAC swapping */
> -		reg = ioread32((void __iomem *) AR5K_AR2315_BYTESWAP);
> -		reg |= AR5K_AR2315_BYTESWAP_WMAC;
> -		iowrite32(reg, (void __iomem *) AR5K_AR2315_BYTESWAP);
> -	} else {
> -		/* Enable WMAC DMA access (assuming 5312 or 231x*/
> -		/* TODO: check other platforms */
> -		reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
> -		if (to_platform_device(ah->dev)->id == 0)
> -			reg |= AR5K_AR5312_ENABLE_WLAN0;
> -		else
> -			reg |= AR5K_AR5312_ENABLE_WLAN1;
> -		iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
> -
> -		/*
> -		 * On a dual-band AR5312, the multiband radio is only
> -		 * used as pass-through. Disable 2 GHz support in the
> -		 * driver for it
> -		 */
> -		if (to_platform_device(ah->dev)->id == 0 &&
> -		    (bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
> -		     (BD_WLAN1 | BD_WLAN0))
> -			ah->ah_capabilities.cap_needs_2GHz_ovr = true;
> -		else
> -			ah->ah_capabilities.cap_needs_2GHz_ovr = false;
> -	}
> -
> -	ret = ath5k_init_ah(ah, &ath_ahb_bus_ops);
> -	if (ret != 0) {
> -		dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
> -		ret = -ENODEV;
> -		goto err_free_hw;
> -	}
> -
> -	platform_set_drvdata(pdev, hw);
> -
> -	return 0;
> -
> - err_free_hw:
> -	ieee80211_free_hw(hw);
> - err_iounmap:
> -        iounmap(mem);
> - err_out:
> -	return ret;
> -}
> -
> -static int ath_ahb_remove(struct platform_device *pdev)
> -{
> -	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
> -	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
> -	struct ath5k_hw *ah;
> -	u32 reg;
> -
> -	if (!hw)
> -		return 0;
> -
> -	ah = hw->priv;
> -
> -	if (bcfg->devid >= AR5K_SREV_AR2315_R6) {
> -		/* Disable WMAC AHB arbitration */
> -		reg = ioread32((void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
> -		reg &= ~AR5K_AR2315_AHB_ARB_CTL_WLAN;
> -		iowrite32(reg, (void __iomem *) AR5K_AR2315_AHB_ARB_CTL);
> -	} else {
> -		/*Stop DMA access */
> -		reg = ioread32((void __iomem *) AR5K_AR5312_ENABLE);
> -		if (to_platform_device(ah->dev)->id == 0)
> -			reg &= ~AR5K_AR5312_ENABLE_WLAN0;
> -		else
> -			reg &= ~AR5K_AR5312_ENABLE_WLAN1;
> -		iowrite32(reg, (void __iomem *) AR5K_AR5312_ENABLE);
> -	}
> -
> -	ath5k_deinit_ah(ah);
> -	iounmap(ah->iobase);
> -	ieee80211_free_hw(hw);
> -
> -	return 0;
> -}
> -
> -static struct platform_driver ath_ahb_driver = {
> -	.probe      = ath_ahb_probe,
> -	.remove     = ath_ahb_remove,
> -	.driver		= {
> -		.name	= "ar231x-wmac",
> -		.owner	= THIS_MODULE,
> -	},
> -};
> -
> -module_platform_driver(ath_ahb_driver);
> diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
> index 85316bb3f8c6..ed2468220216 100644
> --- a/drivers/net/wireless/ath/ath5k/ath5k.h
> +++ b/drivers/net/wireless/ath/ath5k/ath5k.h
> @@ -1647,32 +1647,6 @@ static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
>  	return &(ath5k_hw_common(ah)->regulatory);
>  }
>  
> -#ifdef CONFIG_ATHEROS_AR231X
> -#define AR5K_AR2315_PCI_BASE	((void __iomem *)0xb0100000)
> -
> -static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
> -{
> -	/* On AR2315 and AR2317 the PCI clock domain registers
> -	 * are outside of the WMAC register space */
> -	if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
> -	    (ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
> -		return AR5K_AR2315_PCI_BASE + reg;
> -
> -	return ah->iobase + reg;
> -}
> -
> -static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
> -{
> -	return ioread32(ath5k_ahb_reg(ah, reg));
> -}
> -
> -static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
> -{
> -	iowrite32(val, ath5k_ahb_reg(ah, reg));
> -}
> -
> -#else
> -
>  static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
>  {
>  	return ioread32(ah->iobase + reg);
> @@ -1683,8 +1657,6 @@ static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
>  	iowrite32(val, ah->iobase + reg);
>  }
>  
> -#endif
> -
>  static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
>  {
>  	return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
> diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
> index 59a87247aac4..a4a09bb8f2f3 100644
> --- a/drivers/net/wireless/ath/ath5k/base.c
> +++ b/drivers/net/wireless/ath/ath5k/base.c
> @@ -99,15 +99,6 @@ static int ath5k_reset(struct ath5k_hw *ah, struct ieee80211_channel *chan,
>  
>  /* Known SREVs */
>  static const struct ath5k_srev_name srev_names[] = {
> -#ifdef CONFIG_ATHEROS_AR231X
> -	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R2 },
> -	{ "5312",	AR5K_VERSION_MAC,	AR5K_SREV_AR5312_R7 },
> -	{ "2313",	AR5K_VERSION_MAC,	AR5K_SREV_AR2313_R8 },
> -	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R6 },
> -	{ "2315",	AR5K_VERSION_MAC,	AR5K_SREV_AR2315_R7 },
> -	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R1 },
> -	{ "2317",	AR5K_VERSION_MAC,	AR5K_SREV_AR2317_R2 },
> -#else
>  	{ "5210",	AR5K_VERSION_MAC,	AR5K_SREV_AR5210 },
>  	{ "5311",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311 },
>  	{ "5311A",	AR5K_VERSION_MAC,	AR5K_SREV_AR5311A },
> @@ -126,7 +117,6 @@ static const struct ath5k_srev_name srev_names[] = {
>  	{ "5418",	AR5K_VERSION_MAC,	AR5K_SREV_AR5418 },
>  	{ "2425",	AR5K_VERSION_MAC,	AR5K_SREV_AR2425 },
>  	{ "2417",	AR5K_VERSION_MAC,	AR5K_SREV_AR2417 },
> -#endif
>  	{ "xxxxx",	AR5K_VERSION_MAC,	AR5K_SREV_UNKNOWN },
>  	{ "5110",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5110 },
>  	{ "5111",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5111 },
> @@ -142,10 +132,6 @@ static const struct ath5k_srev_name srev_names[] = {
>  	{ "5413",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5413 },
>  	{ "5424",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5424 },
>  	{ "5133",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_5133 },
> -#ifdef CONFIG_ATHEROS_AR231X
> -	{ "2316",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2316 },
> -	{ "2317",	AR5K_VERSION_RAD,	AR5K_SREV_RAD_2317 },
> -#endif
>  	{ "xxxxx",	AR5K_VERSION_RAD,	AR5K_SREV_UNKNOWN },
>  };
>  
> diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c
> index 2062d1190556..0beb7e7d6075 100644
> --- a/drivers/net/wireless/ath/ath5k/led.c
> +++ b/drivers/net/wireless/ath/ath5k/led.c
> @@ -163,20 +163,14 @@ int ath5k_init_leds(struct ath5k_hw *ah)
>  {
>  	int ret = 0;
>  	struct ieee80211_hw *hw = ah->hw;
> -#ifndef CONFIG_ATHEROS_AR231X
>  	struct pci_dev *pdev = ah->pdev;
> -#endif
>  	char name[ATH5K_LED_MAX_NAME_LEN + 1];
>  	const struct pci_device_id *match;
>  
>  	if (!ah->pdev)
>  		return 0;
>  
> -#ifdef CONFIG_ATHEROS_AR231X
> -	match = NULL;
> -#else
>  	match = pci_match_id(&ath5k_led_devices[0], pdev);
> -#endif
>  	if (match) {
>  		__set_bit(ATH_STAT_LEDSOFT, ah->status);
>  		ah->led_pin = ATH_PIN(match->driver_data);
> -- 
> 1.9.3
> 
> 
> 

-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-09-09 22:27 GMT+04:00, John W. Linville <linville@tuxdriver.com>:
> On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
>> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
>> > Hi Sergey,
>> >
>> > On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
>> >> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
>> >> > On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
>> >> >> Having this conversation every rc1 is getting a bit silly. Could
>> >> >> Jiri
>> >> >> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
>> >> >> submitted?
>> >> >
>> >> > I waited until rc3. Have you seen any activity on this front? If
>> >> > not,
>> >> > should I resend the patch that removes the code in mainline that
>> >> > depends
>> >> > on ATHEROS_AR231X (ie, AHB bus support)?
>> >> >
>> >> Recent activity always could be found in [1]. Now I finish another one
>> >> round of cleanups and have a plan to fix several things (you can
>> >> always find something that you really want to improve). But if you
>> >> insist I could immediately switch to "send upstream" mode. And seems
>> >> that this would be better approach.
>> >>
>> >> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
>> >
>> > And where can the related PULL requests or patch submissions be found?
>> >
>> I have not sent patches yet, since I thought that it would be easier
>> to cleanup them in openwrt tree and then send them upstream.
>
> That excuse has worn a bit thin.  Perhaps Paul should repost his
> removal and you can add a revert to the start of your patch series?
>
As for me, I do not like such flapping, but you have a final say in
this discussion as a maintainer.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Jiri Slaby]

On 09/10/2014, 12:33 PM, Sergey Ryazanov wrote:
> 2014-09-09 22:27 GMT+04:00, John W. Linville <linville@tuxdriver.com>:
>> On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
>>> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
>>>> Hi Sergey,
>>>>
>>>> On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
>>>>> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
>>>>>> On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
>>>>>>> Having this conversation every rc1 is getting a bit silly. Could
>>>>>>> Jiri
>>>>>>> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
>>>>>>> submitted?
>>>>>>
>>>>>> I waited until rc3. Have you seen any activity on this front? If
>>>>>> not,
>>>>>> should I resend the patch that removes the code in mainline that
>>>>>> depends
>>>>>> on ATHEROS_AR231X (ie, AHB bus support)?
>>>>>>
>>>>> Recent activity always could be found in [1]. Now I finish another one
>>>>> round of cleanups and have a plan to fix several things (you can
>>>>> always find something that you really want to improve). But if you
>>>>> insist I could immediately switch to "send upstream" mode. And seems
>>>>> that this would be better approach.
>>>>>
>>>>> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
>>>>
>>>> And where can the related PULL requests or patch submissions be found?
>>>>
>>> I have not sent patches yet, since I thought that it would be easier
>>> to cleanup them in openwrt tree and then send them upstream.
>>
>> That excuse has worn a bit thin.  Perhaps Paul should repost his
>> removal and you can add a revert to the start of your patch series?
>>
> As for me, I do not like such flapping

Agreed in case what you have is in a good enough shape. You (and also
others) can still clean up the code in upstream too. So, if it is
mergeable, send it for upstream inclusion now, otherwise I am all for
John to apply the Paul's patch. The unused code has been a way too long
in the tree now.

thanks,
-- 
js

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Sergey Ryazanov]

2014-09-10 15:36 GMT+04:00, Jiri Slaby <jirislaby@gmail.com>:
> On 09/10/2014, 12:33 PM, Sergey Ryazanov wrote:
>> 2014-09-09 22:27 GMT+04:00, John W. Linville <linville@tuxdriver.com>:
>>> On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
>>>> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
>>>>> Hi Sergey,
>>>>>
>>>>> On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
>>>>>> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
>>>>>>> On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
>>>>>>>> Having this conversation every rc1 is getting a bit silly. Could
>>>>>>>> Jiri
>>>>>>>> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
>>>>>>>> submitted?
>>>>>>>
>>>>>>> I waited until rc3. Have you seen any activity on this front? If
>>>>>>> not,
>>>>>>> should I resend the patch that removes the code in mainline that
>>>>>>> depends
>>>>>>> on ATHEROS_AR231X (ie, AHB bus support)?
>>>>>>>
>>>>>> Recent activity always could be found in [1]. Now I finish another
>>>>>> one
>>>>>> round of cleanups and have a plan to fix several things (you can
>>>>>> always find something that you really want to improve). But if you
>>>>>> insist I could immediately switch to "send upstream" mode. And seems
>>>>>> that this would be better approach.
>>>>>>
>>>>>> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
>>>>>
>>>>> And where can the related PULL requests or patch submissions be found?
>>>>>
>>>> I have not sent patches yet, since I thought that it would be easier
>>>> to cleanup them in openwrt tree and then send them upstream.
>>>
>>> That excuse has worn a bit thin.  Perhaps Paul should repost his
>>> removal and you can add a revert to the start of your patch series?
>>>
>> As for me, I do not like such flapping
>
> Agreed in case what you have is in a good enough shape. You (and also
> others) can still clean up the code in upstream too. So, if it is
> mergeable, send it for upstream inclusion now, otherwise I am all for
> John to apply the Paul's patch.

Two days is the last deadline :)

> The unused code has been a way too long
> in the tree now.

Code actively used in owrt firmware and its forks.

-- 
BR,
Sergey

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[John W. Linville]

On Wed, Sep 10, 2014 at 04:19:21PM +0400, Sergey Ryazanov wrote:
> 2014-09-10 15:36 GMT+04:00, Jiri Slaby <jirislaby@gmail.com>:
> > On 09/10/2014, 12:33 PM, Sergey Ryazanov wrote:
> >> 2014-09-09 22:27 GMT+04:00, John W. Linville <linville@tuxdriver.com>:
> >>> On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
> >>>> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> >>>>> Hi Sergey,
> >>>>>
> >>>>> On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
> >>>>>> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
> >>>>>>> On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
> >>>>>>>> Having this conversation every rc1 is getting a bit silly. Could
> >>>>>>>> Jiri
> >>>>>>>> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
> >>>>>>>> submitted?
> >>>>>>>
> >>>>>>> I waited until rc3. Have you seen any activity on this front? If
> >>>>>>> not,
> >>>>>>> should I resend the patch that removes the code in mainline that
> >>>>>>> depends
> >>>>>>> on ATHEROS_AR231X (ie, AHB bus support)?
> >>>>>>>
> >>>>>> Recent activity always could be found in [1]. Now I finish another
> >>>>>> one
> >>>>>> round of cleanups and have a plan to fix several things (you can
> >>>>>> always find something that you really want to improve). But if you
> >>>>>> insist I could immediately switch to "send upstream" mode. And seems
> >>>>>> that this would be better approach.
> >>>>>>
> >>>>>> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
> >>>>>
> >>>>> And where can the related PULL requests or patch submissions be found?
> >>>>>
> >>>> I have not sent patches yet, since I thought that it would be easier
> >>>> to cleanup them in openwrt tree and then send them upstream.
> >>>
> >>> That excuse has worn a bit thin.  Perhaps Paul should repost his
> >>> removal and you can add a revert to the start of your patch series?
> >>>
> >> As for me, I do not like such flapping
> >
> > Agreed in case what you have is in a good enough shape. You (and also
> > others) can still clean up the code in upstream too. So, if it is
> > mergeable, send it for upstream inclusion now, otherwise I am all for
> > John to apply the Paul's patch.
> 
> Two days is the last deadline :)
> 
> > The unused code has been a way too long
> > in the tree now.
> 
> Code actively used in owrt firmware and its forks.

Is this code coming or not?  When can I expect to see it posted?

-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[John W. Linville]

On Thu, Sep 11, 2014 at 03:21:46PM -0400, John W. Linville wrote:
> On Wed, Sep 10, 2014 at 04:19:21PM +0400, Sergey Ryazanov wrote:
> > 2014-09-10 15:36 GMT+04:00, Jiri Slaby <jirislaby@gmail.com>:
> > > On 09/10/2014, 12:33 PM, Sergey Ryazanov wrote:
> > >> 2014-09-09 22:27 GMT+04:00, John W. Linville <linville@tuxdriver.com>:
> > >>> On Fri, Sep 05, 2014 at 04:02:10PM +0400, Sergey Ryazanov wrote:
> > >>>> 2014-09-05 15:33 GMT+04:00 Paul Bolle <pebolle@tiscali.nl>:
> > >>>>> Hi Sergey,
> > >>>>>
> > >>>>> On Fri, 2014-09-05 at 15:12 +0400, Sergey Ryazanov wrote:
> > >>>>>> 2014-09-05 14:10 GMT+04:00, Paul Bolle <pebolle@tiscali.nl>:
> > >>>>>>> On Wed, 2014-06-18 at 13:46 +0200, Paul Bolle wrote:
> > >>>>>>>> Having this conversation every rc1 is getting a bit silly. Could
> > >>>>>>>> Jiri
> > >>>>>>>> e.a. perhaps set some specific deadline for ATHEROS_AR231X to be
> > >>>>>>>> submitted?
> > >>>>>>>
> > >>>>>>> I waited until rc3. Have you seen any activity on this front? If
> > >>>>>>> not,
> > >>>>>>> should I resend the patch that removes the code in mainline that
> > >>>>>>> depends
> > >>>>>>> on ATHEROS_AR231X (ie, AHB bus support)?
> > >>>>>>>
> > >>>>>> Recent activity always could be found in [1]. Now I finish another
> > >>>>>> one
> > >>>>>> round of cleanups and have a plan to fix several things (you can
> > >>>>>> always find something that you really want to improve). But if you
> > >>>>>> insist I could immediately switch to "send upstream" mode. And seems
> > >>>>>> that this would be better approach.
> > >>>>>>
> > >>>>>> 1. https://dev.openwrt.org/log/trunk/target/linux/atheros
> > >>>>>
> > >>>>> And where can the related PULL requests or patch submissions be found?
> > >>>>>
> > >>>> I have not sent patches yet, since I thought that it would be easier
> > >>>> to cleanup them in openwrt tree and then send them upstream.
> > >>>
> > >>> That excuse has worn a bit thin.  Perhaps Paul should repost his
> > >>> removal and you can add a revert to the start of your patch series?
> > >>>
> > >> As for me, I do not like such flapping
> > >
> > > Agreed in case what you have is in a good enough shape. You (and also
> > > others) can still clean up the code in upstream too. So, if it is
> > > mergeable, send it for upstream inclusion now, otherwise I am all for
> > > John to apply the Paul's patch.
> > 
> > Two days is the last deadline :)
> > 
> > > The unused code has been a way too long
> > > in the tree now.
> > 
> > Code actively used in owrt firmware and its forks.
> 
> Is this code coming or not?  When can I expect to see it posted?

FYI -- Sergey posted a series to linux-mips on 14 September 2014 that
touches the symbol in question.  For whatever reason, it is posted
there as RFC.

Does this satisfy the interested parties??

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[Paul Bolle]

On Mon, 2014-09-15 at 14:45 -0400, John W. Linville wrote:
> FYI -- Sergey posted a series to linux-mips on 14 September 2014 that
> touches the symbol in question.  For whatever reason, it is posted
> there as RFC.

Thanks for passing that on.

> Does this satisfy the interested parties??

In case I qualify as an interested party: resolving this by, in short,
making AHB support actually buildable is of course the preferable
solution. 

Whether or not we should drop my patch while waiting for that series to
land in linux-next is not my call. But if it hasn't landed by, say,
about the time v3.18-rc3 is released I might raise this issue again.

I must say that I'm a bit puzzled why people have resisted this rather
small cleanup for years. How did having unbuildable AHB support in
mainline benefit anyone? Couldn't the revert of this cleanup also be
handled out of tree? Note that the revert is only "6 files changed, 3
insertions(+), 294 deletions(-)", while the series is "39 files changed,
3911 insertions(+), 10 deletions(-)".


Paul Bolle

Re: [PATCH 09/28] Remove ATHEROS_AR231X

[John W. Linville]

On Tue, Sep 16, 2014 at 10:26:59PM +0200, Paul Bolle wrote:
> On Mon, 2014-09-15 at 14:45 -0400, John W. Linville wrote:
> > FYI -- Sergey posted a series to linux-mips on 14 September 2014 that
> > touches the symbol in question.  For whatever reason, it is posted
> > there as RFC.
> 
> Thanks for passing that on.
> 
> > Does this satisfy the interested parties??
> 
> In case I qualify as an interested party: resolving this by, in short,
> making AHB support actually buildable is of course the preferable
> solution. 
> 
> Whether or not we should drop my patch while waiting for that series to
> land in linux-next is not my call. But if it hasn't landed by, say,
> about the time v3.18-rc3 is released I might raise this issue again.
> 
> I must say that I'm a bit puzzled why people have resisted this rather
> small cleanup for years. How did having unbuildable AHB support in
> mainline benefit anyone? Couldn't the revert of this cleanup also be
> handled out of tree? Note that the revert is only "6 files changed, 3
> insertions(+), 294 deletions(-)", while the series is "39 files changed,
> 3911 insertions(+), 10 deletions(-)".

I think it got added with the notion that the code was "coming soon".
As you have tried to remove it, the "coming soon" refrain continued.

I'm still inclined to merge your patch.  An RFC series posted to
another mailing list doesn't really change my mind.

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville@tuxdriver.com			might be all we have.  Be ready.