diff mbox series

[5.19,092/717] powerpc/boot: Explicitly disable usage of SPE instructions

Message ID 20221022072431.642839091@linuxfoundation.org
State New
Headers
Series None |

Commit Message

Greg KH Oct. 22, 2022, 7:19 a.m. UTC 
  From: Pali Rohár <pali@kernel.org>

commit 110a58b9f91c66f743c01a2c217243d94c899c23 upstream.

uImage boot wrapper should not use SPE instructions, like kernel itself.
Boot wrapper has already disabled Altivec and VSX instructions but not SPE.
Options -mno-spe and -mspe=no already set when compilation of kernel, but
not when compiling uImage wrapper yet. Fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220827134454.17365-1-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/boot/Makefile |    1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -34,6 +34,7 @@  endif
 
 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx \
+		 $(call cc-option,-mno-spe) $(call cc-option,-mspe=no) \
 		 -pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
 		 $(LINUXINCLUDE)