PV-on-HVM: Kernels prior to 2.6.8 did not export strcspn to modules

therefore implement our own and export it.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>
Signed-off-by: Tsunehisa Doi <Doi.Tsunehisa@jp.fujitsu.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c b/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c
index c6fa5b81da..6538964ecf 100644
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-compat.c
@@ -9,3 +9,23 @@
 static int system_state = 1;
 EXPORT_SYMBOL(system_state);
 #endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8)
+size_t strcspn(const char *s, const char *reject)
+{
+        const char *p;
+        const char *r;
+        size_t count = 0;
+
+        for (p = s; *p != '\0'; ++p) {
+                for (r = reject; *r != '\0'; ++r) {
+                        if (*p == *r)
+                                return count;
+                }
+                ++count;
+        }
+
+        return count;
+}
+EXPORT_SYMBOL(strcspn);
+#endif