linux-kernel - [PATCH 2/2] nouveau: fix dependencies for DEVICE

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Date:   Fri,  8 May 2020 16:40:09 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Ben Skeggs <bskeggs@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Christoph Hellwig <hch@....de>,
        John Hubbard <jhubbard@...dia.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dan Williams <dan.j.williams@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] nouveau: fix dependencies for DEVICE_PRIVATE

CONFIG_DEVICE_PRIVATE cannot be selected in configurations
without ZONE_DEVICE:

WARNING: unmet direct dependencies detected for DEVICE_PRIVATE
  Depends on [n]: ZONE_DEVICE [=n]
  Selected by [y]:
  - DRM_NOUVEAU_SVM [=y] && HAS_IOMEM [=y] && DRM_NOUVEAU [=y] && MMU [=y] && STAGING [=y]
kernel/resource.c:1653:28: error: use of undeclared identifier 'PA_SECTION_SHIFT'
        size = ALIGN(size, 1UL << PA_SECTION_SHIFT);
                                  ^
kernel/resource.c:1654:48: error: use of undeclared identifier 'MAX_PHYSMEM_BITS'

Add a dependency for Nouveau to avoid broken randconfig builds.

Fixes: d2c63df2242e ("mm/hmm: make CONFIG_DEVICE_PRIVATE into a select")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/nouveau/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig
index af5793f3e7c2..996ec5475908 100644
--- a/drivers/gpu/drm/nouveau/Kconfig
+++ b/drivers/gpu/drm/nouveau/Kconfig
@@ -87,6 +87,7 @@ config DRM_NOUVEAU_BACKLIGHT
 config DRM_NOUVEAU_SVM
 	bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support"
 	depends on DRM_NOUVEAU
+	depends on ZONE_DEVICE
 	depends on MMU
 	depends on STAGING
 	select DEVICE_PRIVATE
-- 
2.26.0