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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-11-27 09:04:22 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-12-05 11:56:54 -0800 |
| commit | adf90eb49055636fc35aede54174456ac3520f27 (patch) | |
| tree | 9078b061023cf5575c4867af6853f1a8b4877b83 /drivers/infiniband/Kconfig | |
| parent | d963007c7210deebef48c5e57aa4ca4cf9c059cd (diff) | |
| download | linux-adf90eb49055636fc35aede54174456ac3520f27.tar.bz2 | |
drivers/infiniband: Remove now-redundant smp_read_barrier_depends()
The smp_read_barrier_depends() does nothing at all except on DEC Alpha,
and no current DEC Alpha systems use Infiniband:
lkml.kernel.org/r/20171023085921.jwbntptn6ictbnvj@tower
This commit therefore makes Infiniband depend on !ALPHA and removes
the now-ineffective invocations of smp_read_barrier_depends() from
the InfiniBand driver.
Please note that this patch should not be construed as my saying that
InfiniBand's memory ordering is correct, but rather that this patch does
not in any way affect InfiniBand's correctness. In other words, the
result of applying this patch is bug-for-bug compatible with the original.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Cree <mcree@orcon.net.nz>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: <linux-rdma@vger.kernel.org>
Cc: <linux-alpha@vger.kernel.org>
[ paulmck: Removed drivers/dma/ioat/dma.c per Jason Gunthorpe's feedback. ]
Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/Kconfig')
| -rw-r--r-- | drivers/infiniband/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 98ac46ed7214..3bb6e35b0bbf 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -4,6 +4,7 @@ menuconfig INFINIBAND depends on NET depends on INET depends on m || IPV6 != m + depends on !ALPHA select IRQ_POLL ---help--- Core support for InfiniBand (IB). Make sure to also select |