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-rw-r--r--compat/backport-4.4.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/compat/backport-4.4.c b/compat/backport-4.4.c
index 1c11a20..660d50b 100644
--- a/compat/backport-4.4.c
+++ b/compat/backport-4.4.c
@@ -152,3 +152,14 @@ void tso_start(struct sk_buff *skb, struct tso_t *tso)
}
}
EXPORT_SYMBOL(tso_start);
+
+const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list ap)
+{
+ if (!strchr(fmt, '%'))
+ return kstrdup_const(fmt, gfp);
+ if (!strcmp(fmt, "%s"))
+ return kstrdup_const(va_arg(ap, const char*), gfp);
+ return kvasprintf(gfp, fmt, ap);
+}
+EXPORT_SYMBOL(kvasprintf_const);
+