linux-next: build failure after merge of the final tree (powerpc related)

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Hi all,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `bpf_slow_path_word':
(.text+0x90): sibling call optimization to `skb_copy_bits' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `skb_copy_bits' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `bpf_slow_path_half':
(.text+0xe0): sibling call optimization to `skb_copy_bits' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `skb_copy_bits' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `bpf_slow_path_byte':
(.text+0x130): sibling call optimization to `skb_copy_bits' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `skb_copy_bits' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `bpf_slow_path_byte_msh':
(.text+0x180): sibling call optimization to `skb_copy_bits' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `skb_copy_bits' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `sk_load_word_negative_offset':
(.text+0x1dc): sibling call optimization to `bpf_internal_load_pointer_neg_helper' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `bpf_internal_load_pointer_neg_helper' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `sk_load_half_negative_offset':
(.text+0x238): sibling call optimization to `bpf_internal_load_pointer_neg_helper' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `bpf_internal_load_pointer_neg_helper' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `sk_load_byte_negative_offset':
(.text+0x294): sibling call optimization to `bpf_internal_load_pointer_neg_helper' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `bpf_internal_load_pointer_neg_helper' extern
powerpc64-linux-ld: arch/powerpc/net/built-in.o: In function `sk_load_byte_msh_negative_offset':
(.text+0x2f0): sibling call optimization to `bpf_internal_load_pointer_neg_helper' does not allow automatic multiple TOCs; recompile with -mminimal-toc or -fno-optimize-sibling-calls, or make `bpf_internal_load_pointer_neg_helper' extern
powerpc64-linux-ld: final link failed: Bad value

I started building with gcc 4.6.3/binutils 2.22 today.  gcc
4.6.0/binutils 2.21 do not produce this error, it produces this instead
(which has been happening for a long time):

powerpc64-linux-ld: TOC section size exceeds 64k

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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