[mips/sb1-91250a] Backport from upstream additional build flags

to fix excessive kernel warnings.

svn path=/dists/sid/linux/; revision=21587

debian/changelog

@@ -60,6 +60,8 @@ linux (3.14.13-1) UNRELEASED; urgency=medium
   * [mips,mipsel] Add mips64 and mips64el support (Closes: #749688).
   * [mips/octeon] Backport from upstream PCIe2 support and interface
     mode detection for Octeon.
+  * [mips/sb1-91250a] Backport from upstream additional build flags
+    to fix excessive kernel warnings.
 
   [ Ben Hutchings ]
   * net/l2tp: don't fall back on UDP [get|set]sockopt (CVE-2014-4943)

debian/patches/bugfix/mips/MIPS-SB1-Fix-excessive-kernel-warnings.patch

@@ -0,0 +1,39 @@
+From: Ralf Baechle <ralf@linux-mips.org>
+Date: Wed, 28 May 2014 08:36:23 +0200
+Subject: MIPS: SB1: Fix excessive kernel warnings.
+Origin: https://git.kernel.org/linus/bb6c0bd3fdb67c8a1fceea1d4700b9ee593309f9
+
+A kernel build with binutils 2.24 is going to emit warnings like
+
+  CC      kernel/sys.o
+{standard input}: Assembler messages:
+{standard input}:701: Warning: the 32-bit MIPS architecture does not support the `mdmx' extension
+{standard input}:701: Warning: the `mdmx' extension requires 64-bit FPRs
+{standard input}:701: Warning: the `mips3d' extension requires MIPS32 revision 2 or greater
+{standard input}:701: Warning: the `mips3d' extension requires 64-bit FPRs
+
+for almost every file.  This is caused by changes to gas' interpretation
+of .set semantics.  Fixed by explicitly disabling MIPS3D and MDMX for
+Sibyte builds.
+
+Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+---
+ arch/mips/Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/mips/Makefile b/arch/mips/Makefile
+index 1a5b403..60a359c 100644
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -151,7 +151,7 @@ cflags-$(CONFIG_CPU_NEVADA)	+= $(call cc-option,-march=rm5200,-march=r5000) \
+ 			-Wa,--trap
+ cflags-$(CONFIG_CPU_RM7000)	+= $(call cc-option,-march=rm7000,-march=r5000) \
+ 			-Wa,--trap
+-cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=r5000) \
++cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1 -mno-mdmx -mno-mips3d,-march=r5000) \
+ 			-Wa,--trap
+ cflags-$(CONFIG_CPU_R8000)	+= -march=r8000 -Wa,--trap
+ cflags-$(CONFIG_CPU_R10000)	+= $(call cc-option,-march=r10000,-march=r8000) \
+-- 
+2.0.0
+

debian/patches/series

@@ -61,6 +61,7 @@ bugfix/arm/ixp4xx_iobe.patch
 bugfix/m68k/ethernat-kconfig.patch
 bugfix/arm/bfa-Replace-large-udelay-with-mdelay.patch
 bugfix/powerpc/ppc64el-powernv-calls-to-support-little-endian.patch
+bugfix/mips/MIPS-SB1-Fix-excessive-kernel-warnings.patch
 
 # Miscellaneous bug fixes
 bugfix/all/misc-bmp085-Enable-building-as-a-module.patch