[Buildroot] [PATCH] rtai: remove option BR2_LINUX_KERNEL_EXT_RTAI_PATCH
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Wed Apr 22 20:13:16 UTC 2015
Hello,
On Tue, 21 Apr 2015 23:36:28 +0200, Thomas Petazzoni wrote:
> This commit removes BR2_LINUX_KERNEL_EXT_RTAI_PATCH because this
> option never worked. It was added in commit
> 8797a9cd1fe6723db34b0c125d0d9d04e3483e8d, which added package/rtai/
> and RTAI as a Linux extension.
>
> The option prompt says "Path for RTAI patch file", so let's say you
> specify /home/foo/bar/myrtai.patch as the value for
> BR2_LINUX_KERNEL_EXT_RTAI_PATCH.
>
> Then the code does:
>
> RTAI_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_RTAI_PATCH))
>
> and we have a package called 'rtai', so the normal logic of
> <pkg>_PATCH applies. Since the <pkg>_PATCH value does not contain
> ftp://, http:// or https://, the package infrastructure will try to
> download $(RTAI_SITE)/$(RTAI_PATCH), i.e:
>
> https://www.rtai.org/userfiles/downloads/RTAI/home/foo/bar/myrtai.patch
>
> Pretty clear that it has no chance of working.
>
> Now, let's assume an URL is used as the value of
> BR2_LINUX_KERNEL_EXT_RTAI_PATCH, such as
> http://foo.com/bar/myrtai.patch. In this case, it will be properly
> downloaded by the package infrastructure. But then, the following code
> kicks in:
>
> define RTAI_PREPARE_KERNEL
> $(APPLY_PATCHES) \
> $(LINUX_DIR) \
> $(dir $(RTAI_PATCH)) \
> $(notdir $(RTAI_PATCH))
> endef
>
> The value of $(dir $(RTAI_PATCH)) will be http://foo.com/bar/. How
> can $(APPLY_PATCHES) make use of such a stupid patch location?
>
> Bottom line is that this feature has never worked, so there is not
> even a point in adding Config.in.legacy support for it.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> ---
> linux/Config.ext.in | 6 ------
> linux/linux-ext-rtai.mk | 11 -----------
> 2 files changed, 17 deletions(-)
I've applied, after adding Config.in.legacy handling as suggested by
Arnout.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
More information about the buildroot
mailing list