[dpdk-dev] [PATCH 4/4] xen_dom0: replace strict_strtoul with kstrtoul

[Jincheng Miao]

>From upstream kernel commit 3db2e9cd, strict_strto* serial functions
are removed. So that we should directly used kstrtoul instead.

And add xen_dom0/compat.h for be compatible with older kernel.

Signed-off-by: Jincheng Miao <jmiao at redhat.com>
---
 lib/librte_eal/linuxapp/xen_dom0/compat.h       |   16 ++++++++++++++++
 lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c |    2 +-
 2 files changed, 17 insertions(+), 1 deletions(-)
 create mode 100644 lib/librte_eal/linuxapp/xen_dom0/compat.h

diff --git a/lib/librte_eal/linuxapp/xen_dom0/compat.h b/lib/librte_eal/linuxapp/xen_dom0/compat.h
new file mode 100644
index 0000000..ca6e160
--- /dev/null
+++ b/lib/librte_eal/linuxapp/xen_dom0/compat.h
@@ -0,0 +1,16 @@
+/*
+ * Minimal wrappers to allow compiling xen_dom0 on older kernels.
+ */
+
+#ifndef RHEL_RELEASE_VERSION
+#define RHEL_RELEASE_VERSION(a, b) (((a) << 8) + (b))
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39) && \
+        (!(defined(RHEL_RELEASE_CODE) && \
+           RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 4)))
+
+#define kstrtoul strict_strtoul
+
+#endif /* < 2.6.39 */
+
diff --git a/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c b/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
index dfb271d..8a3727d 100644
--- a/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
+++ b/lib/librte_eal/linuxapp/xen_dom0/dom0_mm_misc.c
@@ -123,7 +123,7 @@ store_memsize(struct device *dev, struct device_attribute *attr,
 	int err = 0;
 	unsigned long mem_size;
 
-	if (0 != strict_strtoul(buf, 0, &mem_size))
+	if (0 != kstrtoul(buf, 0, &mem_size))
 		return  -EINVAL;
 
 	mutex_lock(&dom0_dev.data_lock);
-- 
1.7.1