add 4 io

hc

2023-08-21 ef9e1ccebba20d2e3859126411166909a383f483

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ccflags-y += -O3
 
obj-$(CONFIG_LZ4_COMPRESS) += lz4_compress.o
obj-$(CONFIG_LZ4HC_COMPRESS) += lz4hc_compress.o
obj-$(CONFIG_LZ4_DECOMPRESS) += lz4_decompress.o