On 08/26/2014 03:05 PM, Yinghai Lu wrote:
>
> The firmware has bug and can use buffer above 4G to read files.
> and if the file size is 512 bytes alignment, then reading could go through.
>
File size, or alignment? Different things. Again, your patch
description is not just incomplete, but seems to be actively misleading.
This does, however, suggest at least two possible solutions:
1. We can read the initramfs into a temporary buffer and memcpy() it to
the target.
2. We might be able to align the initramfs buffer to a 512-byte section
and then round up the size.
The 512 bytes here is probably a hardware sector, I'm not sure how this
will play on 4K-hard-sectored media, although those are few and far between.
-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
