kernel: split patches folder up into backport, pending and hack folders

* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused

Signed-off-by: John Crispin <john@phrozen.org>

1 files changed, 0 insertions, 105 deletions

diff --git a/target/linux/generic/patches-3.18/304-mips_disable_fpu.patch b/target/linux/generic/patches-3.18/304-mips_disable_fpu.patch
deleted file mode 100644
index 37ec993..0000000
--- a/target/linux/generic/patches-3.18/304-mips_disable_fpu.patch
+++ /dev/null
@@ -1,105 +0,0 @@
-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
-@@ -2495,6 +2495,20 @@ config MIPS_O32_FP64_SUPPORT
- 
- 	  If unsure, say N.
- 
-+config MIPS_FPU_EMULATOR
-+	bool "MIPS FPU Emulator"
-+	default y
-+	help
-+	  This option lets you disable the built-in MIPS FPU (Coprocessor 1)
-+	  emulator, which handles floating-point instructions on processors
-+	  without a hardware FPU.  It is generally a good idea to keep the
-+	  emulator built-in, unless you are perfectly sure you have a
-+	  complete soft-float environment.  With the emulator disabled, all
-+	  users of float operations will be killed with an illegal instr-
-+	  uction exception.
-+
-+	  Say Y, please.
-+
- config USE_OF
- 	bool
- 	select OF
---- a/arch/mips/Makefile
-+++ b/arch/mips/Makefile
-@@ -275,7 +275,7 @@ OBJCOPYFLAGS		+= --remove-section=.regin
- head-y := arch/mips/kernel/head.o
- 
- libs-y			+= arch/mips/lib/
--libs-y			+= arch/mips/math-emu/
-+libs-$(CONFIG_MIPS_FPU_EMULATOR)	+= arch/mips/math-emu/
- 
- # See arch/mips/Kbuild for content of core part of the kernel
- core-y += arch/mips/
---- a/arch/mips/include/asm/fpu.h
-+++ b/arch/mips/include/asm/fpu.h
-@@ -169,8 +169,10 @@ static inline int init_fpu(void)
- 		ret = __own_fpu();
- 		if (!ret)
- 			_init_fpu();
--	} else
-+	} else if (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR))
- 		fpu_emulator_init_fpu();
-+	else
-+		ret = SIGILL;
- 
- 	return ret;
- }
---- a/arch/mips/include/asm/fpu_emulator.h
-+++ b/arch/mips/include/asm/fpu_emulator.h
-@@ -30,6 +30,7 @@
- #include <asm/local.h>
- #include <asm/processor.h>
- 
-+#ifdef CONFIG_MIPS_FPU_EMULATOR
- #ifdef CONFIG_DEBUG_FS
- 
- struct mips_fpu_emulator_stats {
-@@ -65,6 +66,20 @@ extern int do_dsemulret(struct pt_regs *
- extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
- 				    struct mips_fpu_struct *ctx, int has_fpu,
- 				    void *__user *fault_addr);
-+#else	/* no CONFIG_MIPS_FPU_EMULATOR */
-+static inline int do_dsemulret(struct pt_regs *xcp)
-+{
-+	return 0;	/* 0 means error, should never get here anyway */
-+}
-+
-+static inline int fpu_emulator_cop1Handler(struct pt_regs *xcp,
-+				struct mips_fpu_struct *ctx, int has_fpu,
-+				void *__user *fault_addr)
-+{
-+	return SIGILL;	/* we don't speak MIPS FPU */
-+}
-+#endif	/* CONFIG_MIPS_FPU_EMULATOR */
-+
- int process_fpemu_return(int sig, void __user *fault_addr);
- int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
- 		     unsigned long *contpc);