[Buildroot] [PATCH] ocf-linux: tweak kernel patch for newer kernels
Gustavo Zacarias
gustavo at zacarias.com.ar
Tue Nov 27 19:23:08 UTC 2012
Newer kernels had a slight change in the random number API so the OCF
patchset requires a slight tweak to build and run properly.
Affected kernels are, per series:
>=3.0.41, >=3.2.29, >=3.4.9, >=3.5.2 and any newer version.
The fix is applied by detecting the API change rather than guessing the
kernel version.
Signed-off-by: Gustavo Zacarias <gustavo at zacarias.com.ar>
---
linux/linux-ext-ocf-linux.mk | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/linux/linux-ext-ocf-linux.mk b/linux/linux-ext-ocf-linux.mk
index faf7360..1a601d5 100644
--- a/linux/linux-ext-ocf-linux.mk
+++ b/linux/linux-ext-ocf-linux.mk
@@ -15,6 +15,8 @@ LINUX_DEPENDENCIES += ocf-linux
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
--
1.7.8.6
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