While debugging issues I often add (trace_)printks to strategic positions. Dealing with user provided string is complicated as an extra buffer a copy_from_user() is needed. This adds a new format string to allow direct printing of such strings.
My initial plan was to use %pU but 'U' is already taken, therefore I used the next letter which comes in mind when one thinks of userpace, 'L'. The %pL format string works exactly like %s. [PATCH 1/2] Fix printk() on ERR_PTR() [PATCH 2/2] vsprintf: Add support for userspace strings -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
