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| Started by | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| First post | 2017-04-28 17:10 +0200 |
| Last post | 2017-04-28 22:00 +0200 |
| Articles | 3 — 3 participants |
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[PATCH] [4.11 regression] cpsw/netcp: refine cpts dependency Arnd Bergmann <arnd@arndb.de> - 2017-04-28 17:10 +0200
Re: [PATCH] [4.11 regression] cpsw/netcp: refine cpts dependency Tony Lindgren <tony@atomide.com> - 2017-04-28 17:20 +0200
Re: [PATCH] [4.11 regression] cpsw/netcp: refine cpts dependency David Miller <davem@davemloft.net> - 2017-04-28 22:00 +0200
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Date | 2017-04-28 17:10 +0200 |
| Subject | [PATCH] [4.11 regression] cpsw/netcp: refine cpts dependency |
| Message-ID | <tBfGV-DE-7@gated-at.bofh.it> |
Tony Lindgren reports a kernel oops that resulted from my compile-time
fix on the default config. This shows two problems:
a) configurations that did not already enable PTP_1588_CLOCK will
now miss the cpts driver
b) when cpts support is disabled, the driver crashes. This is a
preexisting problem that we did not notice before my patch.
While the second problem is still being investigated, this modifies
the dependencies again, getting us back to the original state, with
another 'select NET_PTP_CLASSIFY' added in to avoid the original
link error we got, and the 'depends on POSIX_TIMERS' to hide
the CPTS support when turning it on would be useless.
Cc: stable@vger.kernel.org # 4.11 needs this
Fixes: 07fef3623407 ("cpsw/netcp: cpts depends on posix_timers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
Adding the Cc: stable in case this doesn't make it into 4.11
any more.
---
drivers/net/ethernet/ti/Kconfig | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 9e631952b86f..48a541eb0af2 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -76,7 +76,7 @@ config TI_CPSW
config TI_CPTS
bool "TI Common Platform Time Sync (CPTS) Support"
depends on TI_CPSW || TI_KEYSTONE_NETCP
- depends on PTP_1588_CLOCK
+ depends on POSIX_TIMERS
---help---
This driver supports the Common Platform Time Sync unit of
the CPSW Ethernet Switch and Keystone 2 1g/10g Switch Subsystem.
@@ -87,6 +87,8 @@ config TI_CPTS_MOD
tristate
depends on TI_CPTS
default y if TI_CPSW=y || TI_KEYSTONE_NETCP=y
+ select NET_PTP_CLASSIFY
+ imply PTP_1588_CLOCK
default m
config TI_KEYSTONE_NETCP
--
2.9.0
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| From | Tony Lindgren <tony@atomide.com> |
|---|---|
| Date | 2017-04-28 17:20 +0200 |
| Message-ID | <tBfQB-HT-9@gated-at.bofh.it> |
| In reply to | #1632961 |
* Arnd Bergmann <arnd@arndb.de> [170428 08:06]:
> Tony Lindgren reports a kernel oops that resulted from my compile-time
> fix on the default config. This shows two problems:
>
> a) configurations that did not already enable PTP_1588_CLOCK will
> now miss the cpts driver
>
> b) when cpts support is disabled, the driver crashes. This is a
> preexisting problem that we did not notice before my patch.
>
> While the second problem is still being investigated, this modifies
> the dependencies again, getting us back to the original state, with
> another 'select NET_PTP_CLASSIFY' added in to avoid the original
> link error we got, and the 'depends on POSIX_TIMERS' to hide
> the CPTS support when turning it on would be useless.
>
> Cc: stable@vger.kernel.org # 4.11 needs this
> Fixes: 07fef3623407 ("cpsw/netcp: cpts depends on posix_timers")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> Adding the Cc: stable in case this doesn't make it into 4.11
> any more.
Thanks this fixes the oops I'm seeing:
Tested-by: Tony Lindgren <tony@atomide.com>
> drivers/net/ethernet/ti/Kconfig | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
> index 9e631952b86f..48a541eb0af2 100644
> --- a/drivers/net/ethernet/ti/Kconfig
> +++ b/drivers/net/ethernet/ti/Kconfig
> @@ -76,7 +76,7 @@ config TI_CPSW
> config TI_CPTS
> bool "TI Common Platform Time Sync (CPTS) Support"
> depends on TI_CPSW || TI_KEYSTONE_NETCP
> - depends on PTP_1588_CLOCK
> + depends on POSIX_TIMERS
> ---help---
> This driver supports the Common Platform Time Sync unit of
> the CPSW Ethernet Switch and Keystone 2 1g/10g Switch Subsystem.
> @@ -87,6 +87,8 @@ config TI_CPTS_MOD
> tristate
> depends on TI_CPTS
> default y if TI_CPSW=y || TI_KEYSTONE_NETCP=y
> + select NET_PTP_CLASSIFY
> + imply PTP_1588_CLOCK
> default m
>
> config TI_KEYSTONE_NETCP
> --
> 2.9.0
>
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| From | David Miller <davem@davemloft.net> |
|---|---|
| Date | 2017-04-28 22:00 +0200 |
| Message-ID | <tBkdA-3Ib-5@gated-at.bofh.it> |
| In reply to | #1632961 |
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 28 Apr 2017 17:03:58 +0200
> Tony Lindgren reports a kernel oops that resulted from my compile-time
> fix on the default config. This shows two problems:
>
> a) configurations that did not already enable PTP_1588_CLOCK will
> now miss the cpts driver
>
> b) when cpts support is disabled, the driver crashes. This is a
> preexisting problem that we did not notice before my patch.
>
> While the second problem is still being investigated, this modifies
> the dependencies again, getting us back to the original state, with
> another 'select NET_PTP_CLASSIFY' added in to avoid the original
> link error we got, and the 'depends on POSIX_TIMERS' to hide
> the CPTS support when turning it on would be useless.
>
> Cc: stable@vger.kernel.org # 4.11 needs this
> Fixes: 07fef3623407 ("cpsw/netcp: cpts depends on posix_timers")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Applied, thanks Arnd.
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