linux-kernel - [PATCH] drivers/memory: can't open emif-asm-offsets.s for writing

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Date:   Fri,  6 Apr 2018 15:00:30 +0200
From:   Anders Roxell <anders.roxell@...aro.org>
To:     tony@...mide.com, d-gerlach@...com
Cc:     santosh.shilimkar@...cle.com, rmk+kernel@...linux.org.uk,
        linux-kernel@...r.kernel.org,
        Anders Roxell <anders.roxell@...aro.org>
Subject: [PATCH] drivers/memory: can't open emif-asm-offsets.s for writing

Build failes due to that the directory isn't created before we execute
the build rule.
cc1: fatal error: can’t open ‘drivers/memory/emif-asm-offsets.s’ for
  writing: No such file or directory compilation terminated.
drivers/memory/Makefile.asm-offsets:2: recipe for target 'drivers/memory/emif-asm-offsets.s' failed
make[2]: *** [drivers/memory/emif-asm-offsets.s] Error 1
Makefile:1060: recipe for target
'arch/arm/mach-omap2' failed
make[1]: *** [arch/arm/mach-omap2] Error 2
make[1]: *** Waiting for unfinished jobs....

Current code adds a file check before checking the dependency, in
filechk it does mkdir -p $(dir $@).

Fixes: 41d9d44d7258 ("ARM: OMAP2+: pm33xx-core: Add platform code needed for PM")
Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
---
 drivers/memory/Makefile.asm-offsets | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/memory/Makefile.asm-offsets b/drivers/memory/Makefile.asm-offsets
index 843ff60ccb5a..70d44a9ed32a 100644
--- a/drivers/memory/Makefile.asm-offsets
+++ b/drivers/memory/Makefile.asm-offsets
@@ -1,4 +1,5 @@
 drivers/memory/emif-asm-offsets.s: drivers/memory/emif-asm-offsets.c
+	$(call filechk,$@)
 	$(call if_changed_dep,cc_s_c)

 include/generated/ti-emif-asm-offsets.h: drivers/memory/emif-asm-offsets.s FORCE
-- 
2.16.3