| Message ID | 20210222070615.9177-3-its@irrelevant.dk |
|---|---|
| State | New |
| Headers | show |
| Series | hw/block/nvme: misc fixes | expand |
On 21-02-22 08:06:14, Klaus Jensen wrote: > From: Gollu Appalanaidu <anaidu.gollu@samsung.com> > > assert may be compiled to a noop and we could end up returning an > uninitialized status. > > Fix this by always returning Internal Device Error as a fallback. > > Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com> > Signed-off-by: Klaus Jensen <k.jensen@samsung.com> > --- > hw/block/nvme.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/hw/block/nvme.c b/hw/block/nvme.c > index ddc83f7f7a19..897b9ff0db91 100644 > --- a/hw/block/nvme.c > +++ b/hw/block/nvme.c > @@ -1232,7 +1232,7 @@ static uint16_t nvme_check_zone_write(NvmeNamespace *ns, NvmeZone *zone, > > static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) > { > - uint16_t status; > + uint64_t zslba = zone->d.zslba; > > switch (nvme_get_zone_state(zone)) { > case NVME_ZONE_STATE_EMPTY: > @@ -1241,16 +1241,15 @@ static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) > case NVME_ZONE_STATE_FULL: > case NVME_ZONE_STATE_CLOSED: > case NVME_ZONE_STATE_READ_ONLY: > - status = NVME_SUCCESS; > - break; > + return NVME_SUCCESS; > case NVME_ZONE_STATE_OFFLINE: > - status = NVME_ZONE_OFFLINE; > - break; > + trace_pci_nvme_err_zone_is_offline(zslba); This also is a tiny addition to the potential error fix. Anyway, it can be shorten to: (if zslba is used in a place only) trace_pci_nvme_err_zone_is_offline(zone->d.zslba); > + return NVME_ZONE_OFFLINE; > default: > assert(false); > } > > - return status; > + return NVME_INTERNAL_DEV_ERROR; > } > > static uint16_t nvme_check_zone_read(NvmeNamespace *ns, uint64_t slba, > -- > 2.30.1 > >
On 2/22/21 8:06 AM, Klaus Jensen wrote: > From: Gollu Appalanaidu <anaidu.gollu@samsung.com> > > assert may be compiled to a noop and we could end up returning an > uninitialized status. Per commit 262a69f4282 ("osdep.h: Prohibit disabling assert() in supported builds") this shouldn't be possible. Anyhow cleanup is good. > > Fix this by always returning Internal Device Error as a fallback. > > Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com> > Signed-off-by: Klaus Jensen <k.jensen@samsung.com> > --- > hw/block/nvme.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/hw/block/nvme.c b/hw/block/nvme.c > index ddc83f7f7a19..897b9ff0db91 100644 > --- a/hw/block/nvme.c > +++ b/hw/block/nvme.c > @@ -1232,7 +1232,7 @@ static uint16_t nvme_check_zone_write(NvmeNamespace *ns, NvmeZone *zone, > > static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) > { > - uint16_t status; > + uint64_t zslba = zone->d.zslba; > > switch (nvme_get_zone_state(zone)) { > case NVME_ZONE_STATE_EMPTY: > @@ -1241,16 +1241,15 @@ static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) > case NVME_ZONE_STATE_FULL: > case NVME_ZONE_STATE_CLOSED: > case NVME_ZONE_STATE_READ_ONLY: > - status = NVME_SUCCESS; > - break; > + return NVME_SUCCESS; > case NVME_ZONE_STATE_OFFLINE: > - status = NVME_ZONE_OFFLINE; > - break; > + trace_pci_nvme_err_zone_is_offline(zslba); > + return NVME_ZONE_OFFLINE; > default: > assert(false); > } > > - return status; > + return NVME_INTERNAL_DEV_ERROR; > } > > static uint16_t nvme_check_zone_read(NvmeNamespace *ns, uint64_t slba, >
diff --git a/hw/block/nvme.c b/hw/block/nvme.c index ddc83f7f7a19..897b9ff0db91 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -1232,7 +1232,7 @@ static uint16_t nvme_check_zone_write(NvmeNamespace *ns, NvmeZone *zone, static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) { - uint16_t status; + uint64_t zslba = zone->d.zslba; switch (nvme_get_zone_state(zone)) { case NVME_ZONE_STATE_EMPTY: @@ -1241,16 +1241,15 @@ static uint16_t nvme_check_zone_state_for_read(NvmeZone *zone) case NVME_ZONE_STATE_FULL: case NVME_ZONE_STATE_CLOSED: case NVME_ZONE_STATE_READ_ONLY: - status = NVME_SUCCESS; - break; + return NVME_SUCCESS; case NVME_ZONE_STATE_OFFLINE: - status = NVME_ZONE_OFFLINE; - break; + trace_pci_nvme_err_zone_is_offline(zslba); + return NVME_ZONE_OFFLINE; default: assert(false); } - return status; + return NVME_INTERNAL_DEV_ERROR; } static uint16_t nvme_check_zone_read(NvmeNamespace *ns, uint64_t slba,