Re: [PATCH v2] ata: libata-scsi: Fix get identity data failed

From: Jason Yan
Date: Fri May 05 2023 - 22:11:11 EST


On 2023/5/5 17:14, yangxingui wrote:


On 2023/5/5 16:25, John Garry wrote:
On 05/05/2023 09:17, Damien Le Moal wrote:
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -26,6 +26,7 @@
  #include <scsi/scsi_device.h>
  #include <scsi/scsi_tcq.h>
  #include <scsi/scsi_transport.h>
+#include <scsi/libsas.h>

hmmm... is it really acceptable that libata is referencing libsas? I didn't think that it would be. libsas uses libata, not the other way around.
Yeah, I didn't expect that either. Is there any other way? If so, is patch v1 OK?

Hi Xingui,

Libsas should follow the standard way of libata to manage the ata structures. Not the opposite way. So what you should do is to find a way for libsas to behave as a normal ata driver. It's not good to make libata aware of libsas or referencing libsas.

If you have detailed questions you can ask me internally(which will be faster) or publicly through the maillist(which may have some delay).

Thanks,
Jason