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rtai: remove option BR2_LINUX_KERNEL_EXT_RTAI_PATCH

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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?

[Thomas: add Config.in.legacy handling, as suggested by Arnout, even
if we believe that no-one could have ever used this option.]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2015-04-21 23:36:28 +02:00
parent bd7354c7a7
commit e7035d4eb9
3 changed files with 5 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Config.in.legacy
View File

@ -107,6 +107,11 @@ endif
###############################################################################
comment "Legacy options removed in 2015.05"
config BR2_LINUX_KERNEL_EXT_RTAI_PATCH
bool "RTAI patch file path has been removed"
help
This option has never worked, so it has been removed.
config BR2_TARGET_GENERIC_PASSWD_DES
bool "Encoding passwords with DES has been removed"
select BR2_LEGACY

6
linux/Config.ext.in
View File

@ -44,12 +44,6 @@ config BR2_LINUX_KERNEL_EXT_RTAI
help
RTAI Kernel part.
config BR2_LINUX_KERNEL_EXT_RTAI_PATCH
depends on BR2_LINUX_KERNEL_EXT_RTAI
string "Path for RTAI patch file"
help
Optionally, explicitly specify the RTAI patch to use.
# fbtft
config BR2_LINUX_KERNEL_EXT_FBTFT
bool "FB TFT drivers"

11
linux/linux-ext-rtai.mk
View File

@ -6,8 +6,6 @@
LINUX_EXTENSIONS += rtai
RTAI_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_RTAI_PATCH))
ifeq ($(KERNEL_ARCH),i386)
RTAI_ARCH = x86
else ifeq ($(KERNEL_ARCH),x86_64)
@ -19,7 +17,6 @@ RTAI_ARCH = $(KERNEL_ARCH)
endif
# Prepare kernel patch
ifeq ($(RTAI_PATCH),)
define RTAI_PREPARE_KERNEL
kver=`$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelversion` ; \
if test -f $(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/hal-linux-$${kver}-*patch ; then \
@ -31,11 +28,3 @@ define RTAI_PREPARE_KERNEL
exit 1 ; \
fi
endef
else
define RTAI_PREPARE_KERNEL
$(APPLY_PATCHES) \
$(LINUX_DIR) \
$(dir $(RTAI_PATCH)) \
$(notdir $(RTAI_PATCH))
endef
endif