Rename variable 'LINUX' to 'KERNELSRC'

Variable name 'LINUX' is very ambiguous for its purpose in the makefile. Also, this project builds as a part of COHT project which uses another variable name 'KERNELSRC' for the same purpose. Hence, this change makes this project uniform with others. Signed-off-by: Vaibhav Gupta <vaibhav.gupta@cern.ch> Reviewed-by: Federico Vaga <federico.vaga@cern.ch>

Rename variable 'LINUX' to 'KERNELSRC'
Variable name 'LINUX' is very ambiguous for its purpose in the makefile. Also, this project builds as a part of COHT project which uses another variable name 'KERNELSRC' for the same purpose. Hence, this change makes this project uniform with others. Signed-off-by: Vaibhav Gupta <vaibhav.gupta@cern.ch> Reviewed-by: Federico Vaga <federico.vaga@cern.ch>
34000735 · Vaibhav Gupta · Federico Vaga · 3e6bda7a · 34000735 · 34000735
Commit 34000735 authored Jun 23, 2022 by Vaibhav Gupta Committed by Federico Vaga Oct 24, 2022
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.gitlab-ci.yml .gitlab-ci.yml +3 -2

driver.rst doc/software/driver.rst +3 -3

Makefile software/kernel/Makefile +2 -2

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--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -54,6 +54,7 @@ documentation:
 build-centos-7:
  stage: build
  variables:
+    KERNELSRC: /usr/src/kernels/*/
    LINUX: /usr/src/kernels/*/
  image:
    name: gitlab-registry.cern.ch/coht/common-containers/build-centos-7:latest
@@ -65,7 +66,7 @@ build-centos-7:
 .script_build_kernel_ver: &script_build_kernel_ver
  - source /linux-versions.sh
-  - fetch $VERSION && prepare $VERSION && export LINUX=$(linux $VERSION)
+  - fetch $VERSION && prepare $VERSION && export KERNELSRC=$(linux $VERSION) && export LINUX=$(linux $VERSION)
  - *script_build_kernel_dep
  - make -C software/kernel all
@@ -83,7 +84,7 @@ build-kernel-5.4.207:
 .script_build_kernel_ver: &script_build_kernel_ver
  - source /linux-versions.sh
-  - fetch $VERSION && prepare $VERSION && export LINUX=$(linux $VERSION)
+  - fetch $VERSION && prepare $VERSION && export KERNELSRC=$(linux $VERSION) && export LINUX=$(linux $VERSION)
  - *script_build_kernel_dep
  - make -C software/kernel all

--- a/doc/software/driver.rst
+++ b/doc/software/driver.rst
@@ -37,7 +37,7 @@ driver from CERN BE-CEM.
 ::
      $ cd /path/to/fmc-adc-100m14b4cha/software/kernel
-      $ export LINUX=/path/to/linux/sources
+      $ export KERNELSRC=/path/to/linux/sources
      $ export ZIO=/path/to/zio
      $ export FMC=/path/to/fmc-sw
      $ export VMEBUS=/path/to/vmebridge
@@ -581,8 +581,8 @@ directory or fail with an error like::
        make: *** /lib/modules/<kernel-version>/build: No such file or directory.
-This happens when you compiled by setting ``LINUX=`` and your sudo is not
+This happens when you compiled by setting ``KERNELSRC=`` and your sudo is not
 propagating the environment to its child processes. In this case, you
 should run this command instead::
-        sudo make modules_install  LINUX=$LINUX
+        sudo make modules_install  KERNELSRC=$KERNELSRC
--- a/software/kernel/Makefile
+++ b/software/kernel/Makefile
@@ -13,7 +13,7 @@ CPPCHECK ?= cppcheck
 DKMS ?= 0
 CURDIR := $(shell /bin/pwd)
 KVERSION ?= $(shell uname -r)
-LINUX ?= /lib/modules/$(KVERSION)/build
+KERNELSRC ?= /lib/modules/$(KVERSION)/build
 ifdef REPO_PARENT
 ZIO ?= $(REPO_PARENT)/fmc/zio
@@ -57,7 +57,7 @@ GIT_VERSION = $(shell git describe --always --dirty --long --tags)
 all: modules
 clean modules help modules_install coccicheck:
-	$(MAKE) -C $(LINUX) M=$(CURDIR) ZIO_ABS=$(ZIO_ABS) FMC_ABS=$(FMC_ABS) \
+	$(MAKE) -C $(KERNELSRC) M=$(CURDIR) ZIO_ABS=$(ZIO_ABS) FMC_ABS=$(FMC_ABS) \
 		ZIO_EXTRA_SYMBOLS-y=$(ZIO_EXTRA_SYMBOLS-y) \
 		FMC_EXTRA_SYMBOLS-y=$(FMC_EXTRA_SYMBOLS-y) \
 		ZIO_VERSION=$(ZIO_VERSION) \