This is used by v4l2-compat-ioctl32.c
Signed-off-by: Hauke Mehrtens <[email protected]>
---
backport/backport-include/linux/compat.h | 5 +++++
backport/compat/compat-3.4.c | 20 ++++++++++++++++++++
2 files changed, 25 insertions(+)
diff --git a/backport/backport-include/linux/compat.h
b/backport/backport-include/linux/compat.h
index 22db9b0..07accd2 100644
--- a/backport/backport-include/linux/compat.h
+++ b/backport/backport-include/linux/compat.h
@@ -13,4 +13,9 @@
#endif
#endif
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0))
+#define compat_put_timespec LINUX_BACKPORT(compat_put_timespec)
+extern int compat_put_timespec(const struct timespec *, void __user *);
+#endif
+
#endif /* __BACKPORT_COMPAT_H */
diff --git a/backport/compat/compat-3.4.c b/backport/compat/compat-3.4.c
index fafe0df..bc090b7 100644
--- a/backport/compat/compat-3.4.c
+++ b/backport/compat/compat-3.4.c
@@ -11,6 +11,8 @@
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/wait.h>
+#include <linux/compat.h>
+#include <asm/uaccess.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#include <linux/regmap.h>
@@ -179,3 +181,21 @@ int simple_open(struct inode *inode, struct file *file)
return 0;
}
EXPORT_SYMBOL_GPL(simple_open);
+
+#ifdef CONFIG_COMPAT
+static int __compat_put_timespec(const struct timespec *ts, struct
compat_timespec __user *cts)
+{
+ return (!access_ok(VERIFY_WRITE, cts, sizeof(*cts)) ||
+ __put_user(ts->tv_sec, &cts->tv_sec) ||
+ __put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
+}
+
+int compat_put_timespec(const struct timespec *ts, void __user *uts)
+{
+ if (COMPAT_USE_64BIT_TIME)
+ return copy_to_user(uts, ts, sizeof *ts) ? -EFAULT : 0;
+ else
+ return __compat_put_timespec(ts, uts);
+}
+EXPORT_SYMBOL_GPL(compat_put_timespec);
+#endif
--
1.7.10.4
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