On Tue, Dec 13, 2016 at 08:08:27AM -0800, Randy Dunlap wrote:
> [adding other lists + gregkh]
>
>
> On 12/13/16 02:56, Dashi DS1 Cao wrote:
> > --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> > +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> > @@ -1614,16 +1614,13 @@ megasas_queue_command(struct Scsi_Host *shost,
> > struct scsi_cmnd *scmd)
> > goto out_done;
> > }
> >
> > - switch (scmd->cmnd[0]) {
> > - case SYNCHRONIZE_CACHE:
> > - /*
> > - * FW takes care of flush cache on its own
> > - * No need to send it down
> > - */
> > + /*
> > + * FW takes care of flush cache on its own for Virtual Disk.
> > + * No need to send it down for VD. For JBOD send SYNCHRONIZE_CACHE
> > to FW.
> > + */
> > + if ((scmd->cmnd[0] == SYNCHRONIZE_CACHE) &&
> > MEGASAS_IS_LOGICAL(scmd)) {
> > scmd->result = DID_OK << 16;
> > goto out_done;
> > - default:
> > - break;
> > }
> >
> > if (instance->instancet->build_and_issue_cmd(instance, scmd)) {
> >
> > MEGASAS_IS_LOGICAL is defined to be a macro with '?' operator, which has a
> > lower precedence than '&&'.
> > The macro should have been defined as:
> > --- a/drivers/scsi/megaraid/megaraid_sas.h
> > +++ b/drivers/scsi/megaraid/megaraid_sas.h
> > @@ -1823,7 +1823,7 @@ struct megasas_instance_template {
> > };
> >
> > #define MEGASAS_IS_LOGICAL(scp)
> > \
> > - (scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
> > + ((scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1)
> >
> > #define MEGASAS_DEV_INDEX(inst, scp) \
> > ((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + \
> >
> > Dashi Cao
> >
I don't maintain 3.18-stable :)
thanks,
greg k-h
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