Re: [PATCH] opal: Use empty structure when not defined

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Feb 16, 2017 at 12:07:08PM -0800, Christoph Hellwig wrote:
> On Thu, Feb 16, 2017 at 11:45:29AM -0700, Scott Bauer wrote:
> > > +	if (check_opal_support(dev) < 0) {
> > >  		pr_warn("Opal is not supported on this device\n");
> > > -	opal_dev->initialized = true;
> > > +		kfree(dev);
> > > +		return NULL;
> > 
> > We're going to have to change this check_opal_support to be != 0 instead of < 0.
> 
> Yes.  And we should simply turn all these printk into pr_debug anway -
> not having OPAL is a prefectly fine condition, no need to spam the log
> for it.
> 
> And btw, I think we should check for bit 0 in OACS before ever doing
> a security send / receive.

That sounds reasonable. It can go in the nvme_send_recv function before we
actually attempt to send anything. The code paths fall nicely in that when
we attempt to look for support we have to do a discovery0 which will fail
on the OACS bit and we'll deallocate everything.

I'll spin this up now.



[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux