| Message ID | 152934432951.24427.11070204367866836632.stgit@dwillia2-desk3.amr.corp.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 06/18, Dan Williams wrote: > Commit 60622d68227d "x86/asm/memcpy_mcsafe: Return bytes remaining" > converted callers of memcpy_mcsafe() to expect a positive 'bytes > remaining' value rather than a negative error code. The nsio_rw_bytes() > conversion failed to return success. The failure is benign in that > nsio_rw_bytes() will end up writing back what it just read. > > Fixes: 60622d68227d ("x86/asm/memcpy_mcsafe: Return bytes remaining") > Cc: Dan Williams <dan.j.williams@intel.com> > Cc: Vishal Verma <vishal.l.verma@intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> > --- > drivers/nvdimm/claim.c | 1 + > 1 file changed, 1 insertion(+) Ah good catch. Looks good to me. Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> > > diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c > index 2e96b34bc936..fb667bf469c7 100644 > --- a/drivers/nvdimm/claim.c > +++ b/drivers/nvdimm/claim.c > @@ -278,6 +278,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, > return -EIO; > if (memcpy_mcsafe(buf, nsio->addr + offset, size) != 0) > return -EIO; > + return 0; > } > > if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) { >
Dan Williams <dan.j.williams@intel.com> writes: > Commit 60622d68227d "x86/asm/memcpy_mcsafe: Return bytes remaining" > converted callers of memcpy_mcsafe() to expect a positive 'bytes > remaining' value rather than a negative error code. The nsio_rw_bytes() > conversion failed to return success. The failure is benign in that > nsio_rw_bytes() will end up writing back what it just read. > > Fixes: 60622d68227d ("x86/asm/memcpy_mcsafe: Return bytes remaining") > Cc: Dan Williams <dan.j.williams@intel.com> > Cc: Vishal Verma <vishal.l.verma@intel.com> > Signed-off-by: Dan Williams <dan.j.williams@intel.com> > --- > drivers/nvdimm/claim.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c > index 2e96b34bc936..fb667bf469c7 100644 > --- a/drivers/nvdimm/claim.c > +++ b/drivers/nvdimm/claim.c > @@ -278,6 +278,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, > return -EIO; > if (memcpy_mcsafe(buf, nsio->addr + offset, size) != 0) > return -EIO; > + return 0; > } > > if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) { Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index 2e96b34bc936..fb667bf469c7 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -278,6 +278,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, return -EIO; if (memcpy_mcsafe(buf, nsio->addr + offset, size) != 0) return -EIO; + return 0; } if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) {
Commit 60622d68227d "x86/asm/memcpy_mcsafe: Return bytes remaining" converted callers of memcpy_mcsafe() to expect a positive 'bytes remaining' value rather than a negative error code. The nsio_rw_bytes() conversion failed to return success. The failure is benign in that nsio_rw_bytes() will end up writing back what it just read. Fixes: 60622d68227d ("x86/asm/memcpy_mcsafe: Return bytes remaining") Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> --- drivers/nvdimm/claim.c | 1 + 1 file changed, 1 insertion(+)