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authorBaoquan He <bhe@redhat.com>2023-05-06 14:16:28 +0300
committerVinod Koul <vkoul@kernel.org>2023-05-18 14:31:17 +0300
commit2437d5ea2191f3059246a1a7ac6fc4c8cc004dec (patch)
tree2c8d8957b07564177df622ee9b32afc7c115baca /drivers/dma
parent401f022cc5a2f0c521767d82c352d83aed944834 (diff)
downloadlinux-2437d5ea2191f3059246a1a7ac6fc4c8cc004dec.tar.xz
dmaengine: make QCOM_HIDMA depend on HAS_IOMEM
On s390 systems (aka mainframes), it has classic channel devices for networking and permanent storage that are currently even more common than PCI devices. Hence it could have a fully functional s390 kernel with CONFIG_PCI=n, then the relevant iomem mapping functions [including ioremap(), devm_ioremap(), etc.] are not available. Here let QCOM_HIDMA depend on HAS_IOMEM so that it won't be built to cause below compiling error if PCI is unset. -------------------------------------------------------- ld: drivers/dma/qcom/hidma.o: in function `hidma_probe': hidma.c:(.text+0x4b46): undefined reference to `devm_ioremap_resource' ld: hidma.c:(.text+0x4b9e): undefined reference to `devm_ioremap_resource' make[1]: *** [scripts/Makefile.vmlinux:35: vmlinux] Error 1 make: *** [Makefile:1264: vmlinux] Error 2 Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <andersson@kernel.org> Cc: Konrad Dybcio <konrad.dybcio@linaro.org> Cc: Vinod Koul <vkoul@kernel.org> Cc: linux-arm-msm@vger.kernel.org Cc: dmaengine@vger.kernel.org Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@gmail.com> Link: https://lore.kernel.org/r/20230506111628.712316-3-bhe@redhat.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/qcom/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/qcom/Kconfig b/drivers/dma/qcom/Kconfig
index 3f926a653bd8..ace75d7b835a 100644
--- a/drivers/dma/qcom/Kconfig
+++ b/drivers/dma/qcom/Kconfig
@@ -45,6 +45,7 @@ config QCOM_HIDMA_MGMT
config QCOM_HIDMA
tristate "Qualcomm Technologies HIDMA Channel support"
+ depends on HAS_IOMEM
select DMA_ENGINE
help
Enable support for the Qualcomm Technologies HIDMA controller.