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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-10-29 15:38:07 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-11-11 14:10:01 +0300
commitbbc55bded4aaf47d6f2bd9389fc8d3a3821d18c0 (patch)
tree4530ad6400d9e0798059644098cf66bbb15da074 /scripts/Makefile.modpost
parent0241ea8cae19b49fc1b1459f7bbe9a77f4f9cc89 (diff)
downloadlinux-bbc55bded4aaf47d6f2bd9389fc8d3a3821d18c0.tar.xz
modpost: dump missing namespaces into a single modules.nsdeps file
The modpost, with the -d option given, generates per-module .ns_deps files. Kbuild generates per-module .mod files to carry module information. This is convenient because Make handles multiple jobs in parallel when the -j option is given. On the other hand, the modpost always runs as a single thread. I do not see a strong reason to produce separate .ns_deps files. This commit changes the modpost to generate just one file, modules.nsdeps, each line of which has the following format: <module_name>: <list of missing namespaces> Please note it contains *missing* namespaces instead of required ones. So, modules.nsdeps is empty if the namespace dependency is all good. This will work more efficiently because spatch will no longer process already imported namespaces. I removed the '(if needed)' from the nsdeps log since spatch is invoked only when needed. This also solves the stale .ns_deps problem reported by Jessica Yu: https://lkml.org/lkml/2019/10/28/467 Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Jessica Yu <jeyu@kernel.org> Acked-by: Jessica Yu <jeyu@kernel.org> Reviewed-by: Matthias Maennich <maennich@google.com> Tested-by: Matthias Maennich <maennich@google.com>
Diffstat (limited to 'scripts/Makefile.modpost')
-rw-r--r--scripts/Makefile.modpost2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 0089417760f9..62e127028b48 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -66,7 +66,7 @@ __modpost:
else
MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - \
- $(if $(KBUILD_NSDEPS),-d)
+ $(if $(KBUILD_NSDEPS),-d modules.nsdeps)
ifeq ($(KBUILD_EXTMOD),)
MODPOST += $(wildcard vmlinux)