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Subject[PATCH 1/4] kbuild: modpost: include .*.cmd files only when targets exist
Date
A build rule fails, the .DELETE_ON_ERROR special target removes the
target, but does nothing for the .*.cmd file, which might be corrupted.
So, .*.cmd files should be included only when the corresponding targets
exist.

Commit 392885ee82d3 ("kbuild: let fixdep directly write to .*.cmd
files") missed to fix up this file.

Fixes: 392885ee82d3 ("kbuild: let fixdep directly write to .*.cmd")
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

scripts/Makefile.modpost | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 6b19c1a4eae5..ad4b9829a456 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -145,10 +145,8 @@ FORCE:
# optimization, we don't need to read them if the target does not
# exist, we will rebuild anyway in that case.

-cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
+existing-targets := $(wildcard $(sort $(targets)))

-ifneq ($(cmd_files),)
- include $(cmd_files)
-endif
+-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)

.PHONY: $(PHONY)
--
2.17.1
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