MIPS: Don't build MSA support unless it can be used

MSA requires that Status.FR == 1, so for MIPS32 tasks MSA can only be
used if CONFIG_MIPS_O32_FP64_SUPPORT is enabled. If it is not & the
kernel is 32bit, there's no point including support for MSA.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7310/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 5652bd4a9220e78cef130ccb5b7ecebfaa553bc0..a159a8f70c8d301e0bb416902b00d860674e4e38 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2117,6 +2117,7 @@ config CPU_MICROMIPS
 config CPU_HAS_MSA
        bool "Support for the MIPS SIMD Architecture"
        depends on CPU_SUPPORTS_MSA
+       depends on 64BIT || MIPS_O32_FP64_SUPPORT
        default y
        help
          MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers