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improve modalias building 

For one, there's no point in the respective pieces to be rebuilt
unconditionally on each and every rebuild.

Second there's no need to invent a custom rule for generating the .s
file from the .c source - we can simply use the generic rule here.

And finally, $(obj) should be used to refer to files in the build tree
(rather than spelling out the subdirectory).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Jan Beulich 2013-05-29 13:18:56 +01:00 committed by Michal Marek
parent f82935ebd6
commit bd70134396
1 changed files with 3 additions and 8 deletions
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11
scripts/mod/Makefile
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@ -29,15 +29,10 @@ define cmd_offsets
echo "#endif" ) > $@
endef
# We use internal kbuild rules to avoid the "is up to date" message from make
scripts/mod/devicetable-offsets.s: scripts/mod/devicetable-offsets.c FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s
$(call if_changed,offsets)
$(obj)/$(devicetable-offsets-file): scripts/mod/devicetable-offsets.s
$(call cmd,offsets)
targets += $(devicetable-offsets-file)
targets += $(devicetable-offsets-file) devicetable-offsets.s
# dependencies on generated files need to be listed explicitly