Il giorno ven 7 ott 2016 alle 5:55, Greg KH
<gregkh@xxxxxxxxxxxxxxxxxxx> ha scritto:
On Thu, Oct 06, 2016 at 06:52:07PM +0200, Samuele Baisi wrote:
drivers/staging/lustre/lustre/obdclass/lprocfs_status.c:1554:5:
error:
symbol 'lprocfs_wr_root_squash' redeclared with different type
(originally
declared at
drivers/staging/lustre/lustre/obdclass/../include/lprocfs_status.h:704)
- incompatible argument 1 (different address spaces)
drivers/staging/lustre/lustre/obdclass/lprocfs_status.c:1618:5:
error:
symbol 'lprocfs_wr_nosquash_nids' redeclared with different type
(originally
declared at
drivers/staging/lustre/lustre/obdclass/../include/lprocfs_status.h:706)
- incompatible argument 1 (different address spaces)
Added __user annotation to the header definitions arguments (which
are
indeed userspace buffers).
Are they really? Have you tested this? The last time this was looked
at, it was a non-trivial problem...
No, I haven't really tested it, I just saw they're treated like
userspace
buffers (copy_from_user) in the function body.
if (copy_from_user(kernbuf, buffer, count)) {
errmsg = "bad address";
rc = -EFAULT;
goto failed_noprint;
}
if (copy_from_user(kernbuf, buffer, count)) {
errmsg = "bad address";
rc = -EFAULT;
goto failed;
}
And any reason you didn't cc the lustre maintainers with this change?
If you think it is correct, please resend it with the testing
information and cc: them.
No, it was a mistake on my part, I thought to CC lustre-devel, but it
seems not to be
public access and then I forgot to add a Lustre mantainer.
Anyway, I do not think I'm going to have a chanche to really test it,
so it's probably
better to dismiss the matter.
Sorry for having wasted your time.
thanks,
greg k-h
Thank you and best regards.
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