linux-kernel - [PATCH v2] infiniband: disable IB HW for UML

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Message-Id: <20221202211940.29111-1-rdunlap@infradead.org>
Date:   Fri,  2 Dec 2022 13:19:40 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Leon Romanovsky <leon@...nel.org>,
        Jason Gunthorpe <jgg@...dia.com>,
        Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
        Christoph Hellwig <hch@...radead.org>,
        linux-rdma@...r.kernel.org, Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        linux-um@...ts.infradead.org
Subject: [PATCH v2] infiniband: disable IB HW for UML

Disable all of drivers/infiniband/hw/ for UML builds until someone
needs it and provides patches to support it.

This prevents build errors in hw/qib/qib_wc_x86_64.c.

Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Suggested-by: Leon Romanovsky <leon@...nel.org>
Cc: Jason Gunthorpe <jgg@...dia.com>
Cc: Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: linux-rdma@...r.kernel.org
Cc: Jeff Dike <jdike@...toit.com>
Cc: Richard Weinberger <richard@....at>
Cc: Anton Ivanov <anton.ivanov@...bridgegreys.com>
Cc: Johannes Berg <johannes@...solutions.net>
Cc: linux-um@...ts.infradead.org
---
v2: just disable infiniband/hw/, not all of infiniband.

 drivers/infiniband/Kconfig |    2 ++
 1 file changed, 2 insertions(+)

diff -- a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -78,6 +78,7 @@ config INFINIBAND_VIRT_DMA
 	def_bool !HIGHMEM
 
 if INFINIBAND_USER_ACCESS || !INFINIBAND_USER_ACCESS
+if !UML
 source "drivers/infiniband/hw/bnxt_re/Kconfig"
 source "drivers/infiniband/hw/cxgb4/Kconfig"
 source "drivers/infiniband/hw/efa/Kconfig"
@@ -94,6 +95,7 @@ source "drivers/infiniband/hw/qedr/Kconf
 source "drivers/infiniband/hw/qib/Kconfig"
 source "drivers/infiniband/hw/usnic/Kconfig"
 source "drivers/infiniband/hw/vmw_pvrdma/Kconfig"
+endif # !UML
 source "drivers/infiniband/sw/rdmavt/Kconfig"
 source "drivers/infiniband/sw/rxe/Kconfig"
 source "drivers/infiniband/sw/siw/Kconfig"