kbuild: Let kernel-doc.py use PYTHON3 override
It is possible to force a specific version of python to be used when
building the kernel by passing PYTHON3= on the make command line.
However kernel-doc.py is currently called with python3 hard-coded and
thus ignores this setting.
Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of
python is used.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 4b2f7d7..da2565e 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -245,7 +245,7 @@
quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
cmd_hdrtest = \
$(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \
- PYTHONDONTWRITEBYTECODE=1 $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
+ PYTHONDONTWRITEBYTECODE=1 $(PYTHON3) $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
touch $@
$(obj)/%.hdrtest: $(src)/%.h FORCE
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index e58c0c1..b915753 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -413,7 +413,7 @@
#
# Enable locally for CONFIG_DRM_I915_WERROR=y. See also scripts/Makefile.build
ifdef CONFIG_DRM_I915_WERROR
- cmd_checkdoc = PYTHONDONTWRITEBYTECODE=1 $(KERNELDOC) -none -Werror $<
+ cmd_checkdoc = PYTHONDONTWRITEBYTECODE=1 $(PYTHON3) $(KERNELDOC) -none -Werror $<
endif
# header test
diff --git a/include/drm/Makefile b/include/drm/Makefile
index 1df6962..48fae3f 100644
--- a/include/drm/Makefile
+++ b/include/drm/Makefile
@@ -11,7 +11,7 @@
quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
cmd_hdrtest = \
$(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \
- PYTHONDONTWRITEBYTECODE=1 $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
+ PYTHONDONTWRITEBYTECODE=1 $(PYTHON3) $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
touch $@
$(obj)/%.hdrtest: $(src)/%.h FORCE
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index d0ee33a..52c08c4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -167,7 +167,7 @@
endif
ifneq ($(KBUILD_EXTRA_WARN),)
- cmd_checkdoc = PYTHONDONTWRITEBYTECODE=1 $(KERNELDOC) -none $(KDOCFLAGS) \
+ cmd_checkdoc = PYTHONDONTWRITEBYTECODE=1 $(PYTHON3) $(KERNELDOC) -none $(KDOCFLAGS) \
$(if $(findstring 2, $(KBUILD_EXTRA_WARN)), -Wall) \
$<
endif
