The lpfc_vmid_host_uuid is not defined as uuid_t and its usage is not
the same as for uuid_t operations (like exporting or importing).
Hence replace call to uuid_is_null() by respective memchr_inv() without
abusing casting.
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/scsi/lpfc/lpfc_els.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 2bad9954c355..14aece44cf43 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1332,7 +1332,7 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
if (phba->cfg_vmid_priority_tagging) {
sp->cmn.priority_tagging = 1;
/* lpfc_vmid_host_uuid is combination of wwpn and wwnn */
- if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) {
+ if (memchr_inv(vport->lpfc_vmid_host_uuid, 0, LPFC_COMPRESS_VMID_SIZE)) {
memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn,
sizeof(phba->wwpn));
memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn,
@@ -12331,7 +12331,7 @@ lpfc_vmid_uvem(struct lpfc_vport *vport,
elsiocb->vmid_tag.vmid_context = vmid_context;
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
- if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid))
+ if (memchr_inv(vport->lpfc_vmid_host_uuid, 0, LPFC_COMPRESS_VMID_SIZE))
memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid,
LPFC_COMPRESS_VMID_SIZE);
--
2.40.0.1.gaa8946217a0b
On Mon, Aug 07, 2023 at 12:58:23PM +0300, Andy Shevchenko wrote:
> The lpfc_vmid_host_uuid is not defined as uuid_t and its usage is not
> the same as for uuid_t operations (like exporting or importing).
> Hence replace call to uuid_is_null() by respective memchr_inv() without
> abusing casting.
The v2 had been issued, this patch is wrong, sorry.
--
With Best Regards,
Andy Shevchenko
On Mon, Aug 7, 2023 at 8:45 AM Andy Shevchenko
<[email protected]> wrote:
>
> On Mon, Aug 07, 2023 at 12:58:23PM +0300, Andy Shevchenko wrote:
> > The lpfc_vmid_host_uuid is not defined as uuid_t and its usage is not
> > the same as for uuid_t operations (like exporting or importing).
> > Hence replace call to uuid_is_null() by respective memchr_inv() without
> > abusing casting.
>
> The v2 had been issued, this patch is wrong, sorry.
>
> --
> With Best Regards,
> Andy Shevchenko
Hi Andy,
Thanks I would prefer to use sizeof instead of
LPFC_COMPRESS_VMID_SIZE. Otherwise, the change looks fine to me.
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b5cd6d1c0a5a..3515ec819037 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1331,7 +1331,8 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
if (phba->cfg_vmid_priority_tagging) {
sp->cmn.priority_tagging = 1;
/* lpfc_vmid_host_uuid is combination of wwpn and wwnn */
- if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid)) {
+ if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0,
+ sizeof(vport->lpfc_vmid_host_uuid))) {
memcpy(vport->lpfc_vmid_host_uuid, phba->wwpn,
sizeof(phba->wwpn));
memcpy(&vport->lpfc_vmid_host_uuid[8], phba->wwnn,
@@ -12357,7 +12358,8 @@ lpfc_vmid_uvem(struct lpfc_vport *vport,
elsiocb->vmid_tag.vmid_context = vmid_context;
pcmd = (u8 *)elsiocb->cmd_dmabuf->virt;
- if (uuid_is_null((uuid_t *)vport->lpfc_vmid_host_uuid))
+ if (!memchr_inv(vport->lpfc_vmid_host_uuid, 0,
+ sizeof(vport->lpfc_vmid_host_uuid))
memcpy(vport->lpfc_vmid_host_uuid, vmid->host_vmid,
LPFC_COMPRESS_VMID_SIZE);
Regards,
Justin
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On Mon, Aug 07, 2023 at 10:45:03AM -0700, Justin Tee wrote:
> --
> This electronic communication and the information and any files transmitted
> with it, or attached to it, are confidential and are intended solely for
> the use of the individual or entity to whom it is addressed and may contain
> information that is confidential, legally privileged, protected by privacy
> laws, or otherwise restricted from disclosure to anyone else. If you are
> not the intended recipient or the person responsible for delivering the
> e-mail to the intended recipient, you are hereby notified that any use,
> copying, distributing, dissemination, forwarding, printing, or copying of
> this e-mail is strictly prohibited. If you received this e-mail in error,
> please return the e-mail to the sender, delete it from your computer, and
> destroy any printed copy of it.
Removed from mailbox.
--
With Best Regards,
Andy Shevchenko
On Tue, Aug 8, 2023 at 6:07 AM Andy Shevchenko
<[email protected]> wrote:
>
> On Mon, Aug 07, 2023 at 10:45:03AM -0700, Justin Tee wrote:
>
> > --
> > This electronic communication and the information and any files transmitted
> > with it, or attached to it, are confidential and are intended solely for
> > the use of the individual or entity to whom it is addressed and may contain
> > information that is confidential, legally privileged, protected by privacy
> > laws, or otherwise restricted from disclosure to anyone else. If you are
> > not the intended recipient or the person responsible for delivering the
> > e-mail to the intended recipient, you are hereby notified that any use,
> > copying, distributing, dissemination, forwarding, printing, or copying of
> > this e-mail is strictly prohibited. If you received this e-mail in error,
> > please return the e-mail to the sender, delete it from your computer, and
> > destroy any printed copy of it.
>
> Removed from mailbox.
>
> --
> With Best Regards,
> Andy Shevchenko
Hi Andy,
There is no need to remove from mailbox because you were the intended
recipient of my previous email as well as everyone subscribed to the
linux-scsi and linux-kernel mailing list (:
I still prefer sizeof(vport->lpfc_vmid_host_uuid) instead of
LPFC_COMPRESS_VMID_SIZE.
Thanks,
Justin
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