On 3/27/2016 2:30 PM, Majd Dibbiny wrote:

The ibv_cmd_get_context fails in older kernels when passing
a request length that the kernel doesn't know.
To avoid breaking compatibility of new libmlx5 and older kernels,
when ibv_cmd_get_context fails with the full request length,
we try once again with the legacy length.

Signed-off-by: Majd Dibbiny <majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
  src/mlx5.c | 27 +++++++++++++++++++++++++--
  1 file changed, 25 insertions(+), 2 deletions(-)

Applied, thanks.
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