infiniband: i40iw: Replace GFP_ATOMIC with GFP_KERNEL in i40iw_add_mqh_4
i40iw_add_mqh_4() is never called in atomic context, because it calls rtnl_lock() that can sleep. Despite never getting called from atomic context, i40iw_add_mqh_4() calls kzalloc() with GFP_ATOMIC, which does not sleep for allocation. GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL, which can sleep and improve the possibility of sucessful allocation. This is found by a static analysis tool named DCNS written by myself. And I also manually check it. Signed-off-by: NJia-Ju Bai <baijiaju1990@gmail.com> Acked-by: NShiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
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