[Buildroot] [PATCH v2] linux: add option to select the CIP real-time kernel

[Buildroot] [PATCH v2] linux: add option to select the CIP real-time kernel

[Angelo Compagnucci]

From: Angelo Compagnucci <angelo.compagnucci@gmail.com>

This patch adds Linux CIP RT, the PREEMPT_RT real-time variant maintained
by the CIP team.

Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
---
Changelo:
v1 -> v2:
* better commit message (T. Petazzoni)
* fixed variable condition checking in mk (T. Petazzoni) 

 linux/Config.in | 12 ++++++++++++
 linux/linux.mk  |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/linux/Config.in b/linux/Config.in
index 8c5539c..eacd53d 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -53,6 +53,17 @@ config BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 
 	  https://www.cip-project.org
 
+config BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION
+	bool "Latest CIP RT SLTS version (4.19.72-cip10-rt4)"
+	help
+	  Same as the CIP version, but this is the PREEMPT_RT realtime
+	  variant.
+
+	  The CIP community plans to maintain 4.19 for security and
+	  bug fixes for more than 10 years.
+
+	  https://www.cip-project.org
+
 config BR2_LINUX_KERNEL_CUSTOM_VERSION
 	bool "Custom version"
 	help
@@ -124,6 +135,7 @@ config BR2_LINUX_KERNEL_VERSION
 	string
 	default "5.3.8" if BR2_LINUX_KERNEL_LATEST_VERSION
 	default "4.19.82-cip14" if BR2_LINUX_KERNEL_LATEST_CIP_VERSION
+	default "4.19.72-cip10-rt4" if BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION
 	default BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE \
 		if BR2_LINUX_KERNEL_CUSTOM_VERSION
 	default "custom" if BR2_LINUX_KERNEL_CUSTOM_TARBALL
diff --git a/linux/linux.mk b/linux/linux.mk
index c45db4d..762f886 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -29,7 +29,7 @@ LINUX_SITE_METHOD = hg
 else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_SVN),y)
 LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
 LINUX_SITE_METHOD = svn
-else ifeq ($(BR2_LINUX_KERNEL_LATEST_CIP_VERSION),y)
+else ifeq ($(BR2_LINUX_KERNEL_LATEST_CIP_VERSION)$(BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION),y)
 LINUX_SOURCE = linux-cip-$(LINUX_VERSION).tar.gz
 LINUX_SITE = https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/snapshot
 else ifneq ($(findstring -rc,$(LINUX_VERSION)),)
-- 
2.7.4

[Buildroot] [PATCH v2] linux: add option to select the CIP real-time kernel

[Thomas Petazzoni]

On Tue, 26 Nov 2019 12:59:33 +0100
Angelo Compagnucci <angelo@amarulasolutions.com> wrote:

> From: Angelo Compagnucci <angelo.compagnucci@gmail.com>
> 
> This patch adds Linux CIP RT, the PREEMPT_RT real-time variant maintained
> by the CIP team.
> 
> Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
> ---
> Changelo:
> v1 -> v2:
> * better commit message (T. Petazzoni)
> * fixed variable condition checking in mk (T. Petazzoni) 

Applied to next, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] [PATCH v2] linux: add option to select the CIP real-time kernel

[Peter Korsgaard]

>>>>> "Angelo" == Angelo Compagnucci <angelo@amarulasolutions.com> writes:

Hi,

 > +config BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION
 > +	bool "Latest CIP RT SLTS version (4.19.72-cip10-rt4)"
 > +	help
 > +	  Same as the CIP version, but this is the PREEMPT_RT realtime
 > +	  variant.
 > +
 > +	  The CIP community plans to maintain 4.19 for security and
 > +	  bug fixes for more than 10 years.
 > +
 > +	  https://www.cip-project.org
 > +
 >  config BR2_LINUX_KERNEL_CUSTOM_VERSION
 >  	bool "Custom version"
 >  	help
 > @@ -124,6 +135,7 @@ config BR2_LINUX_KERNEL_VERSION
 >  	string
 >  	default "5.3.8" if BR2_LINUX_KERNEL_LATEST_VERSION
 >  	default "4.19.82-cip14" if BR2_LINUX_KERNEL_LATEST_CIP_VERSION
 > +	default "4.19.72-cip10-rt4" if BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION

So the two CIP variants are not even in sync? Annoying :/

-- 
Bye, Peter Korsgaard

[Buildroot] [PATCH v2] linux: add option to select the CIP real-time kernel

[Angelo Compagnucci]

On Wed, Nov 27, 2019 at 4:59 PM Peter Korsgaard <peter@korsgaard.com> wrote:
>
> >>>>> "Angelo" == Angelo Compagnucci <angelo@amarulasolutions.com> writes:
>
> Hi,
>
>  > +config BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION
>  > +    bool "Latest CIP RT SLTS version (4.19.72-cip10-rt4)"
>  > +    help
>  > +      Same as the CIP version, but this is the PREEMPT_RT realtime
>  > +      variant.
>  > +
>  > +      The CIP community plans to maintain 4.19 for security and
>  > +      bug fixes for more than 10 years.
>  > +
>  > +      https://www.cip-project.org
>  > +
>  >  config BR2_LINUX_KERNEL_CUSTOM_VERSION
>  >      bool "Custom version"
>  >      help
>  > @@ -124,6 +135,7 @@ config BR2_LINUX_KERNEL_VERSION
>  >      string
>  >      default "5.3.8" if BR2_LINUX_KERNEL_LATEST_VERSION
>  >      default "4.19.82-cip14" if BR2_LINUX_KERNEL_LATEST_CIP_VERSION
>  > +    default "4.19.72-cip10-rt4" if BR2_LINUX_KERNEL_LATEST_CIP_RT_VERSION
>
> So the two CIP variants are not even in sync? Annoying :/

unfortunately, yes. It's annoying.

>
> --
> Bye, Peter Korsgaard