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Subject[PATCH] mips: CONFIG_KERNEL_LZ4 needs obj/bswapsi.o
Add obj/bswapsi.o for CONFIG_KERNEL_LZ4 to fix undefined references
during linking.

mips64-linux-ld: arch/mips/boot/compressed/decompress.o: in function `decompress_kernel':
decompress.c:(.text+0x34e0): undefined reference to `__bswapsi2'
mips64-linux-ld: decompress.c:(.text+0x3504): undefined reference to `__bswapsi2'
mips64-linux-ld: decompress.c:(.text+0x3530): undefined reference to `__bswapsi2'

#Fixes: d0nt0110kn0w ("I couldn't find where __bswapsi2 is used.")
Reported-by: kernel test robot <>
Signed-off-by: Randy Dunlap <>
Cc: Thomas Bogendoerfer <>
arch/mips/boot/compressed/Makefile | 1 +
1 file changed, 1 insertion(+)

--- linux-next-20210701.orig/arch/mips/boot/compressed/Makefile
+++ linux-next-20210701/arch/mips/boot/compressed/Makefile
@@ -55,6 +55,7 @@ $(obj)/uart-ath79.c: $(srctree)/arch/mip
$(call cmd,shipped)

vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
+vmlinuzobjs-$(CONFIG_KERNEL_LZ4) += $(obj)/bswapsi.o

extra-y += ashldi3.c
$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
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