# # Copyright (C) 2006 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # RAMSTART = 0x80000000 RAMSIZE = 0x00100000 # 1MB LOADADDR = 0x80400000 # RAM start + 4M KERNEL_ENTRY = 0x80001000 IMAGE_COPY:=0 CROSS_COMPILE = mips-linux- OBJCOPY:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S CFLAGS := -fno-builtin -Os -G 0 -ffunction-sections -mno-abicalls -fno-pic -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap -Wall -DRAMSTART=${RAMSTART} -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY} -D_LZMA_IN_CB ifeq ($(IMAGE_COPY),1) CFLAGS += -DLOADADDR=${LOADADDR} -DIMAGE_COPY=1 endif .S.s: $(CPP) $(CFLAGS) $< -o $*.s .S.o: $(CC) $(CFLAGS) -c $< -o $*.o .c.o: $(CC) $(CFLAGS) -c $< -o $*.o CC = $(CROSS_COMPILE)gcc LD = $(CROSS_COMPILE)ld OBJDUMP = $(CROSS_COMPILE)objdump O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32) # Drop some uninteresting sections in the kernel. # This is only relevant for ELF kernels but doesn't hurt a.out drop-sections = .reginfo .mdebug .comment strip-flags = $(addprefix --remove-section=,$(drop-sections)) all : lzma.elf lzma.bin lzma.lds: lzma.lds.in sed -e 's,@LOADADDR@,$(LOADADDR),g' -e 's,@ENTRY@,_start,g' $< >$@ kernel.o: vmlinux.lzma lzma.lds $(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $< lzma.bin: lzma.elf $(OBJCOPY) $< $@ ifeq ($(IMAGE_COPY),1) LOADER_ENTRY ?= $(KERNEL_ENTRY) lzma.o: decompress.o LzmaDecode.o kernel.o sed -e 's,@LOADADDR@,$(LOADADDR),g' -e 's,@ENTRY@,entry,g' lzma.lds.in >lzma-stage2.lds $(LD) -static --no-warn-mismatch -e entry -Tlzma-stage2.lds -o temp-$@ $^ $(OBJCOPY) temp-$@ lzma.tmp @echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > lzma-data.lds $(LD) -no-warn-mismatch -T lzma-data.lds -r -o $@ -b binary lzma.tmp --oformat $(O_FORMAT) lzma.elf: start.o lzma.o sed -e 's,@LOADADDR@,$(LOADER_ENTRY),g' lzma-copy.lds.in >lzma-copy.lds $(LD) -s -Tlzma-copy.lds -o $@ $^ else lzma.elf: start.o decompress.o LzmaDecode.o kernel.o $(LD) -s -Tlzma.lds -o $@ $^ endif clean: rm -f *.o lzma.elf lzma.bin *.tmp *.lds e_netlink_trim.patch?id=b361a9d59a725b50f00f47ccf319cf86ba5f43c4'>treecommitdiffstats
path: root/target/linux/generic/patches-3.14/653-disable_netlink_trim.patch
blob: 22f5e6e02d70656ab477d563e679f6b8b8aff63d (plain) 
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--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1720,27 +1720,7 @@ void netlink_detachskb(struct sock *sk,
 
 static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
 {
-	int delta;
-
 	WARN_ON(skb->sk != NULL);
-	if (netlink_skb_is_mmaped(skb))
-		return skb;
-
-	delta = skb->end - skb->tail;
-	if (is_vmalloc_addr(skb->head) || delta * 2 < skb->truesize)
-		return skb;
-
-	if (skb_shared(skb)) {
-		struct sk_buff *nskb = skb_clone(skb, allocation);
-		if (!nskb)
-			return skb;
-		consume_skb(skb);
-		skb = nskb;
-	}
-
-	if (!pskb_expand_head(skb, 0, -delta, allocation))
-		skb->truesize -= delta;
-
 	return skb;
 }
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