This is needed by drivers/regulator/fixed.c
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
backport/backport-include/linux/device.h | 5 ++++
backport/compat/Makefile | 1 +
backport/compat/backport-3.15.c | 38 ++++++++++++++++++++++++++++++
3 files changed, 44 insertions(+)
create mode 100644 backport/compat/backport-3.15.c
diff --git a/backport/backport-include/linux/device.h b/backport/backport-include/linux/device.h
index aa91c62..ebfc01a 100644
--- a/backport/backport-include/linux/device.h
+++ b/backport/backport-include/linux/device.h
@@ -247,4 +247,9 @@ static inline void *dev_get_platdata(const struct device *dev)
#define devm_kmalloc(dev, size, flags) devm_kzalloc(dev, size, flags)
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
+#define devm_kstrdup LINUX_BACKPORT(devm_kstrdup)
+extern char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp);
+#endif
+
#endif /* __BACKPORT_DEVICE_H */
diff --git a/backport/compat/Makefile b/backport/compat/Makefile
index ac2dc47..e2da341 100644
--- a/backport/compat/Makefile
+++ b/backport/compat/Makefile
@@ -30,6 +30,7 @@ compat-$(CPTCFG_BACKPORT_KERNEL_3_10) += backport-3.10.o
compat-$(CPTCFG_BACKPORT_KERNEL_3_12) += backport-3.12.o
compat-$(CPTCFG_BACKPORT_KERNEL_3_13) += backport-3.13.o
compat-$(CPTCFG_BACKPORT_KERNEL_3_14) += backport-3.14.o
+compat-$(CPTCFG_BACKPORT_KERNEL_3_15) += backport-3.15.o
compat-$(CPTCFG_BACKPORT_BUILD_KFIFO) += kfifo.o
compat-$(CPTCFG_BACKPORT_BUILD_GENERIC_ATOMIC64) += compat_atomic.o
diff --git a/backport/compat/backport-3.15.c b/backport/compat/backport-3.15.c
new file mode 100644
index 0000000..367ff9d
--- /dev/null
+++ b/backport/compat/backport-3.15.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2014 Hauke Mehrtens <hauke@xxxxxxxxxx>
+ *
+ * Backport functionality introduced in Linux 3.15.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+
+/**
+ * devm_kstrdup - Allocate resource managed space and
+ * copy an existing string into that.
+ * @dev: Device to allocate memory for
+ * @s: the string to duplicate
+ * @gfp: the GFP mask used in the devm_kmalloc() call when
+ * allocating memory
+ * RETURNS:
+ * Pointer to allocated string on success, NULL on failure.
+ */
+char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp)
+{
+ size_t size;
+ char *buf;
+
+ if (!s)
+ return NULL;
+
+ size = strlen(s) + 1;
+ buf = devm_kmalloc(dev, size, gfp);
+ if (buf)
+ memcpy(buf, s, size);
+ return buf;
+}
+EXPORT_SYMBOL_GPL(devm_kstrdup);
--
1.7.10.4
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