4.0-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Markos Chandras <[email protected]>

Commit 5306a5450824691e27d68f711758515debedeeac upstream.

Commit 32098ec7bcba ("MIPS: Makefile: Move the ASEs checks after
setting the core's CFLAGS") re-arranged the MIPS ASE detection code
and also added the current cflags to the detection logic. However,
this introduced a few bugs. First of all, the mips-cflags should not
be quoted since that ends up being passed as a string to subsequent
commands leading to broken detection from the cc-option-* tools.
Moreover, in order to avoid duplicating the cflags-y because of how
cc-option works, we rework the logic so we pass only those cflags which
are needed by the selected ASE. Finally, fix some typos resulting in MSA
not being detected correctly.

Signed-off-by: Markos Chandras <[email protected]>
Fixes: Commit 32098ec7bcba ("MIPS: Makefile: Move the ASEs checks after setting 
the core's CFLAGS")
Cc: Maciej W. Rozycki <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/9661/
Signed-off-by: Ralf Baechle <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 arch/mips/Makefile |   14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -197,11 +197,17 @@ endif
 # Warning: the 64-bit MIPS architecture does not support the `smartmips' 
extension
 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code 
has
 # been fixed properly.
-mips-cflags                            := "$(cflags-y)"
-cflags-$(CONFIG_CPU_HAS_SMARTMIPS)     += $(call 
cc-option,$(mips-cflags),-msmartmips) -Wa,--no-warn
-cflags-$(CONFIG_CPU_MICROMIPS)         += $(call 
cc-option,$(mips-cflags),-mmicromips)
+mips-cflags                            := $(cflags-y)
+ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
+smartmips-ase                          := $(call cc-option-yn,$(mips-cflags) 
-msmartmips)
+cflags-$(smartmips-ase)                        += -msmartmips -Wa,--no-warn
+endif
+ifeq ($(CONFIG_CPU_MICROMIPS),y)
+micromips-ase                          := $(call cc-option-yn,$(mips-cflags) 
-mmicromips)
+cflags-$(micromips-ase)                        += -mmicromips
+endif
 ifeq ($(CONFIG_CPU_HAS_MSA),y)
-toolchain-msa                          := $(call 
cc-option-yn,-$(mips-cflags),mhard-float -mfp64 -Wa$(comma)-mmsa)
+toolchain-msa                          := $(call cc-option-yn,$(mips-cflags) 
-mhard-float -mfp64 -Wa$(comma)-mmsa)
 cflags-$(toolchain-msa)                        += -DTOOLCHAIN_SUPPORTS_MSA
 endif
 


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