buildroot

##################################################

# Linux OCF extension

#

# Patch the linux kernel with OCF

##################################################

​

ifeq ($(BR2_LINUX_KERNEL_EXT_OCF_LINUX),y)

LINUX_DEPENDENCIES += ocf-linux

​

# Prepare kernel patch

# The linux-3.2.1.patch is just the main inclusion, most of the code

# resides in the ocf/ subdir.

# It works for older kernel versions.

# Run tested from 2.6.38+ and build tested from 2.6.35+

define OCF_LINUX_PREPARE_KERNEL

    support/scripts/apply-patches.sh $(LINUX_DIR) \

        $(OCF_LINUX_DIR)/patches/ linux-3.2.1-ocf.patch ; \

    grep -q __mix_pool_bytes $(LINUX_DIR)/drivers/char/random.c && \

    $(SED) 's:wordcount\*4:&, NULL:' $(LINUX_DIR)/drivers/char/random.c ; \

    cp -rf $(OCF_LINUX_DIR)/ocf $(LINUX_DIR)/crypto/ocf ;

endef

​

LINUX_PRE_PATCH_HOOKS += OCF_LINUX_PREPARE_KERNEL

​

endif #BR2_LINUX_EXT_OCF_LINUX