> Yes, the MMU version of remap_pfn_range() does permit non-page-aligned > `addr' (at least, if the userspace maaping is a non-COW one). But I > suspect that was an implementation accident - it is a nonsensical thing > to do, isn't it? The MMU cannot map a bunch of kernel pages onto a > non-page-aligned userspace address. > > So I'm thinking that we should declare ((addr & ~PAGE_MASK) != 0) to be > a caller bug, and fix up this regrettably unidentified v4l driver?
I agree. This should be fixed in videobuf. Hi sharma, what's your kernel version? It seems videobuf2 already fixed this bug in 3.5. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
