lkml.org 
[lkml]   [2018]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.17 48/67] iw_cxgb4: correctly enforce the max reg_mr depth
Date
4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Steve Wise <swise@opengridcomputing.com>

commit 7b72717a20bba8bdd01b14c0460be7d15061cd6b upstream.

The code was mistakenly using the length of the page array memory instead
of the depth of the page array.

This would cause MR creation to fail in some cases.

Fixes: 8376b86de7d3 ("iw_cxgb4: Support the new memory registration API")
Cc: stable@vger.kernel.org
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/infiniband/hw/cxgb4/mem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -774,7 +774,7 @@ static int c4iw_set_page(struct ib_mr *i
{
struct c4iw_mr *mhp = to_c4iw_mr(ibmr);

- if (unlikely(mhp->mpl_len == mhp->max_mpl_len))
+ if (unlikely(mhp->mpl_len == mhp->attr.pbl_size))
return -ENOMEM;

mhp->mpl[mhp->mpl_len++] = addr;

\
 
 \ /
  Last update: 2018-07-16 09:56    [W:1.602 / U:0.380 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site