From: Arnd Bergmann <arnd@kernel.org>
To: Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
Edward Srouji <edwards@nvidia.com>,
Yishai Hadas <yishaih@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Allen Hubbe <allen.hubbe@amd.com>,
Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
Usman Ansari <usman.ansari@broadcom.com>,
Siva Reddy Kallam <siva.kallam@broadcom.com>,
Abhijit Gangurde <abhijit.gangurde@amd.com>,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] RDMA/uverbs: select CONFIG_DMA_SHARED_BUFFER
Date: Mon, 16 Feb 2026 13:12:00 +0100 [thread overview]
Message-ID: <20260216121213.2088910-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
The addition of dmabuf support in uverbs means that it is no
longer possible to build infiniband support if that is disabled:
arm-linux-gnueabi-ld: drivers/infiniband/core/ib_core_uverbs.o: in function `rdma_user_mmap_entry_remove.part.0':
ib_core_uverbs.c:(.text+0x508): undefined reference to `dma_buf_move_notify'
(dma_buf_move_notify): Unknown destination type (ARM/Thumb) in drivers/infiniband/core/ib_core_uverbs.o
ib_core_uverbs.c:(.text+0x518): undefined reference to `dma_resv_wait_timeout'
(dma_resv_wait_timeout): Unknown destination type (ARM/Thumb) in drivers/infiniband/core/ib_core_uverbs.o
Select this from Kconfig, as we do for the other users.
Fixes: 0ac6f4056c4a ("RDMA/uverbs: Add DMABUF object type and operations")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/infiniband/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 794b9778816b..78ac2ff5befd 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -6,6 +6,7 @@ menuconfig INFINIBAND
depends on INET
depends on m || IPV6 != m
depends on !ALPHA
+ select DMA_SHARED_BUFFER
select IRQ_POLL
select DIMLIB
help
--
2.39.5
next reply other threads:[~2026-02-16 12:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-16 12:12 Arnd Bergmann [this message]
2026-02-17 13:18 ` [PATCH] RDMA/uverbs: select CONFIG_DMA_SHARED_BUFFER Leon Romanovsky
2026-02-23 19:49 ` Leon Romanovsky
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