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RMDA/siw: Require a 64 bit arch
The new siw driver fails to build on i386 with
drivers/infiniband/sw/siw/siw_qp.c:1025:3: error: invalid output size for constraint '+q'
smp_store_mb(*cq->notify, SIW_NOTIFY_NOT);
As it is using 64 bit values with the smp_store_mb.
Since the entire scheme here seems questionable, and we are in the merge
window, fix the compile failures by disabling 32 bit support on this
driver.
A proper fix will be reviewed post merge window.
Fixes: c0cf5bdde4
("rdma/siw: addition to kernel build environment")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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@ -1,6 +1,6 @@
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config RDMA_SIW
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tristate "Software RDMA over TCP/IP (iWARP) driver"
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depends on INET && INFINIBAND && LIBCRC32C
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depends on INET && INFINIBAND && LIBCRC32C && 64BIT
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select DMA_VIRT_OPS
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help
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This driver implements the iWARP RDMA transport over
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