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microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV}

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Use built-in functions instead of shell commands to avoid forking
processes.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
This commit is contained in:
Masahiro Yamada 2021-12-14 11:53:55 +09:00
parent 340a02535e
commit c0ee9bba55
1 changed files with 3 additions and 3 deletions
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6
arch/microblaze/Makefile
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@ -6,9 +6,9 @@ UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
# What CPU version are we building for, and crack it open
# as major.minor.rev
CPU_VER := $(CONFIG_XILINX_MICROBLAZE0_HW_VER)
CPU_MAJOR := $(shell echo $(CPU_VER) | cut -d '.' -f 1)
CPU_MINOR := $(shell echo $(CPU_VER) | cut -d '.' -f 2)
CPU_REV := $(shell echo $(CPU_VER) | cut -d '.' -f 3)
CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER)))
CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER)))
CPU_REV := $(word 3, $(subst ., , $(CPU_VER)))
export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV