path: root/scripts/Makefile.headersinst
diff options
authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-03 10:10:38 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-06 09:46:51 +0900
commit919987318a129b4d0c2203a3c6fd2d804be77100 (patch)
treee072c3709d30b9383ada73673ef9ee4dcc79e9c1 /scripts/Makefile.headersinst
parentarch: remove stale comments "UAPI Header export list" (diff)
kbuild: generate asm-generic wrappers if mandatory headers are missing
Some time ago, Sam pointed out a certain degree of overwrap between generic-y and mandatory-y. (https://lkml.org/lkml/2017/7/10/121) I tweaked the meaning of mandatory-y a little bit; now it defines the minimum set of ASM headers that all architectures must have. If arch does not have specific implementation of a mandatory header, Kbuild will let it fallback to the asm-generic one by automatically generating a wrapper. This will allow to drop lots of redundant generic-y defines. Previously, "mandatory" was used in the context of UAPI, but I guess this can be extended to kernel space ASM headers. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to '')
1 files changed, 0 insertions, 7 deletions
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 45927fcddbc0..3d1ebaabd1b6 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -56,13 +56,6 @@ check-file := $(installdir)/.check
all-files := $(header-files) $(genhdr-files)
output-files := $(addprefix $(installdir)/, $(all-files))
-ifneq ($(mandatory-y),)
-missing := $(filter-out $(all-files),$(mandatory-y))
-ifneq ($(missing),)
-$(error Some mandatory headers ($(missing)) are missing in $(obj))
# Work out what needs to be removed
oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
unwanted := $(filter-out $(all-files),$(oldheaders))