linux-kernel - [PATCH 18/22] mm: mark DEVICE

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Date:   Thu, 13 Jun 2019 11:43:21 +0200
From:   Christoph Hellwig <hch@....de>
To:     Dan Williams <dan.j.williams@...el.com>,
        Jérôme Glisse <jglisse@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Ben Skeggs <bskeggs@...hat.com>
Cc:     linux-mm@...ck.org, nouveau@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-nvdimm@...ts.01.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 18/22] mm: mark DEVICE_PUBLIC as broken

The code hasn't been used since it was added to the tree, and doesn't
appear to actually be usable.  Mark it as BROKEN until either a user
comes along or we finally give up on it.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 mm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 0d2ba7e1f43e..406fa45e9ecc 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -721,6 +721,7 @@ config DEVICE_PRIVATE
 config DEVICE_PUBLIC
 	bool "Addressable device memory (like GPU memory)"
 	depends on ARCH_HAS_HMM
+	depends on BROKEN
 	select HMM
 	select DEV_PAGEMAP_OPS
 
-- 
2.20.1