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From: Vivek Kasireddy <vivek.kasireddy@intel.com>
To: dri-devel@lists.freedesktop.org, linux-mm@kvack.org
Cc: Arnd Bergmann <arnd@arndb.de>,
	David Hildenbrand <david@redhat.com>,
	Vivek Kasireddy <vivek.kasireddy@intel.com>
Subject: [PATCH v15 4/9] udmabuf: add CONFIG_MMU dependency
Date: Thu, 13 Jun 2024 14:42:06 -0700	[thread overview]
Message-ID: <20240613214741.1029446-5-vivek.kasireddy@intel.com> (raw)
In-Reply-To: <20240613214741.1029446-1-vivek.kasireddy@intel.com>

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: d1d00dd1fd2f ("udmabuf: use vmf_insert_pfn and VM_PFNMAP for handling mmap")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
---
 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.
-- 
2.45.1


  parent reply	other threads:[~2024-06-13 22:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-13 21:42 [PATCH v15 0/9] mm/gup: Introduce memfd_pin_folios() for pinning memfd folios Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 1/9] mm/gup: Introduce unpin_folio/unpin_folios helpers Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 2/9] mm/gup: Introduce check_and_migrate_movable_folios() Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 3/9] mm/gup: Introduce memfd_pin_folios() for pinning memfd folios Vivek Kasireddy
2024-06-14  4:55   ` Oscar Salvador
2024-06-18  6:49     ` Kasireddy, Vivek
2024-06-13 21:42 ` Vivek Kasireddy [this message]
2024-06-13 21:42 ` [PATCH v15 5/9] udmabuf: Use vmf_insert_pfn and VM_PFNMAP for handling mmap Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 6/9] udmabuf: Add back support for mapping hugetlb pages Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 7/9] udmabuf: Convert udmabuf driver to use folios Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 8/9] udmabuf: Pin the pages using memfd_pin_folios() API Vivek Kasireddy
2024-06-13 21:42 ` [PATCH v15 9/9] selftests/udmabuf: Add tests to verify data after page migration Vivek Kasireddy
2024-06-17 14:41 ` [PATCH v15 0/9] mm/gup: Introduce memfd_pin_folios() for pinning memfd folios Daniel Vetter

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