The patch titled
IB/mthca: Fix FMR breakage caused by kmemdup() conversion
has been added to the -mm tree. Its filename is
ib-mthca-fix-fmr-breakage-caused-by-kmemdup-conversion.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: IB/mthca: Fix FMR breakage caused by kmemdup() conversion
From: Michael S. Tsirkin <mst@xxxxxxxxxxxxxx>
Commit bed8bdfd ("IB: kmemdup() cleanup") introduced one bad conversion to
kmemdup() in mthca_alloc_fmr(), where the structure allocated and the
structure copied are not the same size. Revert this back to the original
kmalloc()/memcpy() code.
Reported-by: Dotan Barak <dotanb@xxxxxxxxxxxxxx>.
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxxxxxx>
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/infiniband/hw/mthca/mthca_provider.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-fix-fmr-breakage-caused-by-kmemdup-conversion drivers/infiniband/hw/mthca/mthca_provider.c
--- a/drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-fix-fmr-breakage-caused-by-kmemdup-conversion
+++ a/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1100,10 +1100,11 @@ static struct ib_fmr *mthca_alloc_fmr(st
struct mthca_fmr *fmr;
int err;
- fmr = kmemdup(fmr_attr, sizeof *fmr, GFP_KERNEL);
+ fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
if (!fmr)
return ERR_PTR(-ENOMEM);
+ memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr);
err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num,
convert_access(mr_access_flags), fmr);
_
Patches currently in -mm which might be from mst@xxxxxxxxxxxxxx are
ib-mthca-fix-fmr-breakage-caused-by-kmemdup-conversion.patch
git-infiniband.patch
-
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