Messages in this thread Patch in this message | | | Subject | [patch 157/198] IB: Keep MAD work completion valid | From | akpm@osdl ... | Date | Tue, 12 Apr 2005 03:33:01 -0700 |
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From: Sean Hefty <sean.hefty@intel.com>
Replace the *wc field in ib_mad_recv_wc from pointing to a structure on the stack to one allocated with the received MAD buffer. This allows a client to access the *wc field after their receive completion handler has returned.
Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@topspin.com> Signed-off-by: Andrew Morton <akpm@osdl.org> ---
25-akpm/drivers/infiniband/core/mad.c | 3 ++- 25-akpm/drivers/infiniband/core/mad_priv.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-)
diff -puN drivers/infiniband/core/mad.c~ib-keep-mad-work-completion-valid drivers/infiniband/core/mad.c --- 25/drivers/infiniband/core/mad.c~ib-keep-mad-work-completion-valid 2005-04-12 03:21:41.108887400 -0700 +++ 25-akpm/drivers/infiniband/core/mad.c 2005-04-12 03:21:41.116886184 -0700 @@ -1600,7 +1600,8 @@ static void ib_mad_recv_done_handler(str DMA_FROM_DEVICE); /* Setup MAD receive work completion from "normal" work completion */ - recv->header.recv_wc.wc = wc; + recv->header.wc = *wc; + recv->header.recv_wc.wc = &recv->header.wc; recv->header.recv_wc.mad_len = sizeof(struct ib_mad); recv->header.recv_wc.recv_buf.mad = &recv->mad.mad; recv->header.recv_wc.recv_buf.grh = &recv->grh; diff -puN drivers/infiniband/core/mad_priv.h~ib-keep-mad-work-completion-valid drivers/infiniband/core/mad_priv.h --- 25/drivers/infiniband/core/mad_priv.h~ib-keep-mad-work-completion-valid 2005-04-12 03:21:41.110887096 -0700 +++ 25-akpm/drivers/infiniband/core/mad_priv.h 2005-04-12 03:21:41.116886184 -0700 @@ -69,6 +69,7 @@ struct ib_mad_list_head { struct ib_mad_private_header { struct ib_mad_list_head mad_list; struct ib_mad_recv_wc recv_wc; + struct ib_wc wc; DECLARE_PCI_UNMAP_ADDR(mapping) } __attribute__ ((packed)); _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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