Messages in this thread Patch in this message | | | Date | Tue, 24 Jun 2003 12:06:10 +0200 | From | Pavel Machek <> | Subject | Provide example copy_in_user implementation |
| |
Hi!
This patch adds example copy_in_user implementation (copy_in_user is needed for new ioctl32 implementation, all 64bit archs will need it)... Please apply,
Pavel
Index: linux/include/asm-generic/uaccess.h =================================================================== --- linux.orig/include/asm-generic/uaccess.h 2003-06-17 17:10:44.000000000 +0200 +++ linux/include/asm-generic/uaccess.h 2003-06-16 16:09:52.000000000 +0200 @@ -0,0 +1,13 @@ +static inline unsigned long copy_in_user(void *dst, const void *src, unsigned size) +{ + unsigned i, ret; + unsigned char c; + for (i=0; i<size; i++) { + if (copy_from_user(&c, src+i, 1)) + return size-i; + if (copy_to_user(dst+i, &c, 1)) + return size-i; + } + return 0; +} +
-- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |