kernel: remove support for kernel 4.9

[openwrt/staging/dedeckeh.git] / target / linux / generic / pending-4.9 / 306-mips_mem_functions_performance.patch

diff --git a/target/linux/generic/pending-4.9/306-mips_mem_functions_performance.patch b/target/linux/generic/pending-4.9/306-mips_mem_functions_performance.patch
deleted file mode 100644 (file)
index 2e404b2..0000000
--- a/target/linux/generic/pending-4.9/306-mips_mem_functions_performance.patch
+++ /dev/null
@@ -1,106 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Subject: [PATCH] mips: allow the compiler to optimize memset, memcmp, memcpy  for better performance and (in some instances) smaller code
-
-lede-commit: 07e59c7bc7f375f792ec9734be42fe4fa391a8bb
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- arch/mips/boot/compressed/Makefile |  3 ++-
- arch/mips/include/asm/string.h     | 38 ++++++++++++++++++++++++++++++++++++++
- arch/mips/lib/Makefile             |  2 +-
- arch/mips/lib/memcmp.c             | 22 ++++++++++++++++++++++
- 4 files changed, 63 insertions(+), 2 deletions(-)
- create mode 100644 arch/mips/lib/memcmp.c
-
---- a/arch/mips/boot/compressed/Makefile
-+++ b/arch/mips/boot/compressed/Makefile
-@@ -23,7 +23,8 @@ KBUILD_CFLAGS := $(shell echo $(KBUILD_C
- KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
- 
- KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \
--      -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
-+      -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" \
-+      -D__ZBOOT__
- 
- KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
-       -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
---- a/arch/mips/include/asm/string.h
-+++ b/arch/mips/include/asm/string.h
-@@ -140,4 +140,42 @@ extern void *memcpy(void *__to, __const_
- #define __HAVE_ARCH_MEMMOVE
- extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
- 
-+#ifndef __ZBOOT__
-+#define memset(__s, __c, len)                                 \
-+({                                                            \
-+      size_t __len = (len);                                   \
-+      void *__ret;                                            \
-+      if (__builtin_constant_p(len) && __len >= 64)           \
-+              __ret = memset((__s), (__c), __len);            \
-+      else                                                    \
-+              __ret = __builtin_memset((__s), (__c), __len);  \
-+      __ret;                                                  \
-+})
-+
-+#define memcpy(dst, src, len)                                 \
-+({                                                            \
-+      size_t __len = (len);                                   \
-+      void *__ret;                                            \
-+      if (__builtin_constant_p(len) && __len >= 64)           \
-+              __ret = memcpy((dst), (src), __len);            \
-+      else                                                    \
-+              __ret = __builtin_memcpy((dst), (src), __len);  \
-+      __ret;                                                  \
-+})
-+
-+#define memmove(dst, src, len)                                        \
-+({                                                            \
-+      size_t __len = (len);                                   \
-+      void *__ret;                                            \
-+      if (__builtin_constant_p(len) && __len >= 64)           \
-+              __ret = memmove((dst), (src), __len);           \
-+      else                                                    \
-+              __ret = __builtin_memmove((dst), (src), __len); \
-+      __ret;                                                  \
-+})
-+
-+#define __HAVE_ARCH_MEMCMP
-+#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len))
-+#endif
-+
- #endif /* _ASM_STRING_H */
---- a/arch/mips/lib/Makefile
-+++ b/arch/mips/lib/Makefile
-@@ -4,7 +4,7 @@
- 
- lib-y += bitops.o csum_partial.o delay.o memcpy.o memset.o \
-          mips-atomic.o strlen_user.o strncpy_user.o \
--         strnlen_user.o uncached.o
-+         strnlen_user.o uncached.o memcmp.o
- 
- obj-y                 += iomap.o
- obj-$(CONFIG_PCI)     += iomap-pci.o
---- /dev/null
-+++ b/arch/mips/lib/memcmp.c
-@@ -0,0 +1,22 @@
-+/*
-+ *  copied from linux/lib/string.c
-+ *
-+ *  Copyright (C) 1991, 1992  Linus Torvalds
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/string.h>
-+
-+#undef memcmp
-+int memcmp(const void *cs, const void *ct, size_t count)
-+{
-+      const unsigned char *su1, *su2;
-+      int res = 0;
-+
-+      for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
-+              if ((res = *su1 - *su2) != 0)
-+                      break;
-+      return res;
-+}
-+EXPORT_SYMBOL(memcmp);
-+