linux-kernel - [PATCH v2] drivers: fpga: Specify HAS_IOMEM dependency for FPGA

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Date:   Fri, 20 Nov 2020 15:46:48 -0800
From:   David Gow <davidgow@...gle.com>
To:     Moritz Fischer <mdf@...nel.org>, Xu Yilun <yilun.xu@...el.com>,
        Tom Rix <trix@...hat.com>
Cc:     David Gow <davidgow@...gle.com>, linux-fpga@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: [PATCH v2] drivers: fpga: Specify HAS_IOMEM dependency for FPGA_DFL

Because dfl.c uses the 'devm_ioremap', 'devm_iounmap',
'devm_ioremap_resource', and 'devm_platform_ioremap_resource'
functions, it should depend on HAS_IOMEM.

This fixes make allyesconfig under UML (ARCH=um), which doesn't provide
HAS_IOMEM.

Fixes: 89eb35e810a8 ("fpga: dfl: map feature mmio resources in their own feature drivers")
Signed-off-by: David Gow <davidgow@...gle.com>
---

Changes since v1:
( https://lore.kernel.org/linux-fpga/20201119082209.3598354-1-davidgow@google.com/ )
- Add Fixes tag

 drivers/fpga/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index 7cd5a29fc437..5645226ca3ce 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -142,6 +142,7 @@ config FPGA_DFL
 	tristate "FPGA Device Feature List (DFL) support"
 	select FPGA_BRIDGE
 	select FPGA_REGION
+	depends on HAS_IOMEM
 	help
 	  Device Feature List (DFL) defines a feature list structure that
 	  creates a linked list of feature headers within the MMIO space
-- 
2.29.2.454.gaff20da3a2-goog