From: Arnd Bergmann <arnd@kernel.org>
To: "Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Dave Airlie" <airlied@redhat.com>,
"Vivek Kasireddy" <vivek.kasireddy@intel.com>,
"David Hildenbrand" <david@redhat.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Andrew Morton" <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org
Subject: [PATCH] udmabuf: add CONFIG_MMU dependency
Date: Tue, 28 May 2024 15:31:31 +0200 [thread overview]
Message-ID: <20240528133138.2237237-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
There is no !CONFIG_MMU version of vmf_insert_pfn():
arm-linux-gnueabi-ld: drivers/dma-buf/udmabuf.o: in function `udmabuf_vm_fault':
udmabuf.c:(.text+0xaa): undefined reference to `vmf_insert_pfn'
Fixes: f7254e043ff1 ("udmabuf: use vmf_insert_pfn and VM_PFNMAP for handling mmap")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/dma-buf/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index e4dc53a36428..b46eb8a552d7 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -35,6 +35,7 @@ config UDMABUF
default n
depends on DMA_SHARED_BUFFER
depends on MEMFD_CREATE || COMPILE_TEST
+ depends on MMU
help
A driver to let userspace turn memfd regions into dma-bufs.
Qemu can use this to create host dmabufs for guest framebuffers.
--
2.39.2
next reply other threads:[~2024-05-28 13:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-28 13:31 Arnd Bergmann [this message]
2024-05-28 13:58 ` David Hildenbrand
2024-05-28 16:52 ` Kasireddy, Vivek
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