Re: [PATCH RESEND 2/2] dmaengine: make QCOM_HIDMA depend on HAS_IOMEM

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On 05/16/23 at 11:26pm, Vinod Koul wrote:
> On 06-05-23, 19:16, Baoquan He wrote:
> > 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.
> 
> I have 2/2 patch here, where is patch 1 of 2..?

It's here, thanks for check.
https://lore.kernel.org/all/20230506111628.712316-2-bhe@xxxxxxxxxx/T/#u

I used get_maintainer to get reivewers list, seems your contact is only
put in 2/2 patch. I also sent to lkml, linux-mm and s390 mailing list,
so the whole series can be seen in any of the ML.

Thanks
Baoquan

> 
> > 
> > --------------------------------------------------------
> > 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@xxxxxxxxxx>
> > Reviewed-by: Niklas Schnelle <schnelle@xxxxxxxxxxxxx>
> > Cc: Andy Gross <agross@xxxxxxxxxx>
> > Cc: Bjorn Andersson <andersson@xxxxxxxxxx>
> > Cc: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> > Cc: Vinod Koul <vkoul@xxxxxxxxxx>
> > Cc: linux-arm-msm@xxxxxxxxxxxxxxx
> > Cc: dmaengine@xxxxxxxxxxxxxxx
> > ---
> >  drivers/dma/qcom/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > 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.
> > -- 
> > 2.34.1
> 
> -- 
> ~Vinod
> 




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