* [PATCH] ndctl: fix zero-labels to handle firmware error properly
@ 2018-11-08 21:26 Toshi Kani
2018-11-08 21:38 ` Dan Williams
0 siblings, 1 reply; 2+ messages in thread
From: Toshi Kani @ 2018-11-08 21:26 UTC (permalink / raw)
To: dan.j.williams, vishal.l.verma; +Cc: linux-nvdimm
ndctl zero-labels completes with a large number of zeroed nmems when
it fails to do zeroing on a protected NVDIMM.
# ndctl zero-labels nmem1
zeroed 65504 nmems
do_cmd() called from ndctl_dimm_zero_labels() sets a transfer size to
rc when FW status is non-zero. This transfer size gets mistreated as
zeroed nmems count in the end.
Fix ndctl_dimm_zero_labels() to handle this FW error case properly.
Reported-by: Robert Elliott <elliott@hpe.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
---
ndctl/lib/dimm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/ndctl/lib/dimm.c b/ndctl/lib/dimm.c
index 5e41734..79e2ca0 100644
--- a/ndctl/lib/dimm.c
+++ b/ndctl/lib/dimm.c
@@ -537,8 +537,12 @@ NDCTL_EXPORT int ndctl_dimm_zero_labels(struct ndctl_dimm *dimm)
goto out_write;
}
rc = ndctl_cmd_submit(cmd_write);
- if (rc || ndctl_cmd_get_firmware_status(cmd_write))
+ if (rc < 0)
goto out_write;
+ if (ndctl_cmd_get_firmware_status(cmd_write)) {
+ rc = -ENXIO;
+ goto out_write;
+ }
/*
* If the dimm is already disabled the kernel is not holding a cached
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ndctl: fix zero-labels to handle firmware error properly
2018-11-08 21:26 [PATCH] ndctl: fix zero-labels to handle firmware error properly Toshi Kani
@ 2018-11-08 21:38 ` Dan Williams
0 siblings, 0 replies; 2+ messages in thread
From: Dan Williams @ 2018-11-08 21:38 UTC (permalink / raw)
To: Toshi Kani; +Cc: linux-nvdimm
On Thu, Nov 8, 2018 at 1:27 PM Toshi Kani <toshi.kani@hpe.com> wrote:
>
> ndctl zero-labels completes with a large number of zeroed nmems when
> it fails to do zeroing on a protected NVDIMM.
>
> # ndctl zero-labels nmem1
> zeroed 65504 nmems
>
> do_cmd() called from ndctl_dimm_zero_labels() sets a transfer size to
> rc when FW status is non-zero. This transfer size gets mistreated as
> zeroed nmems count in the end.
>
> Fix ndctl_dimm_zero_labels() to handle this FW error case properly.
>
> Reported-by: Robert Elliott <elliott@hpe.com>
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> Cc: Vishal Verma <vishal.l.verma@intel.com>
> Cc: Dan Williams <dan.j.williams@intel.com>
Looks good,
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
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