linux-kernel - [PATCH 5.10 006/146] dmaengine: SF_PDMA depends on HAS

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Date:   Mon, 21 Jun 2021 18:13:56 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Green Wan <green.wan@...ive.com>,
        Vinod Koul <vkoul@...nel.org>, dmaengine@...r.kernel.org,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 006/146] dmaengine: SF_PDMA depends on HAS_IOMEM

From: Randy Dunlap <rdunlap@...radead.org>

[ Upstream commit 8e2e4f3c58528c6040b5762b666734f8cceba568 ]

When CONFIG_HAS_IOMEM is not set/enabled, certain iomap() family
functions [including ioremap(), devm_ioremap(), etc.] are not
available.
Drivers that use these functions should depend on HAS_IOMEM so that
they do not cause build errors.

Mends this build error:
s390-linux-ld: drivers/dma/sf-pdma/sf-pdma.o: in function `sf_pdma_probe':
sf-pdma.c:(.text+0x1668): undefined reference to `devm_ioremap_resource'

Fixes: 6973886ad58e ("dmaengine: sf-pdma: add platform DMA support for HiFive Unleashed A00")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Green Wan <green.wan@...ive.com>
Cc: Vinod Koul <vkoul@...nel.org>
Cc: dmaengine@...r.kernel.org
Link: https://lore.kernel.org/r/20210522021313.16405-4-rdunlap@infradead.org
Signed-off-by: Vinod Koul <vkoul@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/dma/sf-pdma/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/sf-pdma/Kconfig b/drivers/dma/sf-pdma/Kconfig
index f8ffa02e279f..ba46a0a15a93 100644
--- a/drivers/dma/sf-pdma/Kconfig
+++ b/drivers/dma/sf-pdma/Kconfig
@@ -1,5 +1,6 @@
 config SF_PDMA
 	tristate "Sifive PDMA controller driver"
+	depends on HAS_IOMEM
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS
 	help
-- 
2.30.2