[PATCH 5.14 790/849] MIPS: fix duplicated slashes for Platform file path

[Greg Kroah-Hartman]

From: Masahiro Yamada <masahiroy@xxxxxxxxxx>

commit cca2aac8acf470b01066f559acd7146fc4c32ae8 upstream.

platform-y accumulates platform names with a slash appended.
The current $(patsubst ...) ends up with doubling slashes.

GNU Make still include Platform files, but in case of an error,
a clumsy file path is displayed:

  arch/mips/loongson2ef//Platform:36: *** only binutils >= 2.20.2 have needed option -mfix-loongson2f-nop.  Stop.

Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
Signed-off-by: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Signed-off-by: Jason Self <jason@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/mips/Makefile |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -254,7 +254,9 @@ endif
 #
 # Board-dependent options and extra files
 #
+ifdef need-compiler
 include arch/mips/Kbuild.platforms
+endif
 
 ifdef CONFIG_PHYSICAL_START
 load-y					= $(CONFIG_PHYSICAL_START)