kernel: switch 3.19 from -rc5 to release .0

[openwrt/openwrt.git] / target / linux / generic / patches-3.19 / 304-mips_disable_fpu.patch

diff --git a/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch b/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch
index 9cb4f6afa6af9bfd799da63654685cafbff128f7..8413dba7c2da3b6312b19da882c173d3a163fedf 100644 (file)
--- a/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch
+++ b/target/linux/generic/patches-3.19/304-mips_disable_fpu.patch
@@ -1,29 +1,3 @@
-From:   Manuel Lauss <manuel.lauss@gmail.com>
-Subject: [RFC PATCH v4 2/2] MIPS: make FPU emulator optional
-Date:   Mon,  7 Apr 2014 12:57:04 +0200
-Message-Id: <1396868224-252888-2-git-send-email-manuel.lauss@gmail.com>
-
-This small patch makes the MIPS FPU emulator optional. The kernel
-kills float-users on systems without a hardware FPU by sending a SIGILL.
-
-Disabling the emulator shrinks vmlinux by about 54kBytes (32bit,
-optimizing for size).
-
-Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
----
-v4: rediffed because of patch 1/2, should now work with micromips as well
-v3: updated patch description with size savings.
-v2: incorporated changes suggested by Jonas Gorski
-    force the fpu emulator on for micromips: relocating the parts
-    of the mmips code in the emulator to other areas would be a
-    much larger change; I went the cheap route instead with this.
-
- arch/mips/Kbuild                     |  2 +-
- arch/mips/Kconfig                    | 14 ++++++++++++++
- arch/mips/include/asm/fpu.h          |  5 +++--
- arch/mips/include/asm/fpu_emulator.h | 15 +++++++++++++++
- 4 files changed, 33 insertions(+), 3 deletions(-)
-
 --- a/arch/mips/Kconfig
 +++ b/arch/mips/Kconfig
 @@ -2521,6 +2521,20 @@ config MIPS_O32_FP64_SUPPORT
@@ -60,12 +34,12 @@ v2: incorporated changes suggested by Jonas Gorski
  core-y += arch/mips/
 --- a/arch/mips/include/asm/fpu.h
 +++ b/arch/mips/include/asm/fpu.h
-@@ -201,8 +201,10 @@ static inline int init_fpu(void)
-                       write_c0_config5(config5);
-                       enable_fpu_hazard();
-               }
+@@ -210,8 +210,10 @@ static inline int init_fpu(void)
+               /* Restore FRE */
+               write_c0_config5(config5);
+               enable_fpu_hazard();
 -      } else
-+      } else if (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR))
++      } else (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR))
                fpu_emulator_init_fpu();
 +      else
 +              ret = SIGILL;