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From: Thomas Renninger <trenn@suse.de>
To: linux-pm@vger.kernel.org
Cc: rafael@kernel.org, Lv Zheng <lv.zheng@intel.com>
Subject: tools/power/acpi: Serialize Makefile
Date: Fri, 25 Sep 2020 17:21:04 +0200	[thread overview]
Message-ID: <1967924.6sJ7JGzvSp@c100> (raw)

Before this patch you get tools/power/acpi/Makefile.rules
included in parallel trying to copy KERNEL_INCLUDE multiple
times:

make -j20 acpi
  DESCEND  power/acpi
  DESCEND  tools/acpidbg
  DESCEND  tools/acpidump
  DESCEND  tools/ec
  MKDIR    include
  MKDIR    include
  MKDIR    include
  CP       include
  CP       include
cp: cannot create directory '/home/abuild/rpmbuild/BUILD/linux-5.7.7+git20200917.10b82d517648/tools/power/acpi/include/acpi': File exists
make[2]: *** [../../Makefile.rules:20: /home/abuild/rpmbuild/BUILD/linux-5.7.7+git20200917.10b82d517648/tools/power/acpi/include] Error 1
make[1]: *** [Makefile:16: acpidbg] Error 2
make[1]: *** Waiting for unfinished jobs....

with this patch each subdirectory will be processed serialized:

  DESCEND  power/acpi
  DESCEND  tools/acpidbg
  MKDIR    include
  CP       include
  CC       tools/acpidbg/acpidbg.o
  LD       acpidbg
  STRIP    acpidbg
  DESCEND  tools/acpidump
  CC       tools/acpidump/apdump.o
...
  LD       acpidump
  STRIP    acpidump
  DESCEND  tools/ec
  CC       tools/ec/ec_access.o
  LD       ec
  STRIP    ec

Signed-off-by: Thomas Renninger <trenn@suse.de>

---
 tools/power/acpi/Makefile |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -7,6 +7,8 @@
 
 include ../../scripts/Makefile.include
 
+.NOTPARALLEL:
+
 all: acpidbg acpidump ec
 clean: acpidbg_clean acpidump_clean ec_clean
 install: acpidbg_install acpidump_install ec_install




                 reply	other threads:[~2020-09-25 15:21 UTC|newest]

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