Hi,

i tried to cross compile arm/multi_v7_defconfig with CONFIG_XEN=y with Linux 5.3-rc6 and i'm getting this:

 drivers/firmware/qcom_scm.c: In function ‘qcom_scm_assign_mem’:
drivers/firmware/qcom_scm.c:460:47: error: passing argument 3 of ‘dma_alloc_coherent’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  ptr = dma_alloc_coherent(__scm->dev, ptr_sz, &ptr_phys, GFP_KERNEL);
                                               ^
In file included from drivers/firmware/qcom_scm.c:12:0:
./include/linux/dma-mapping.h:636:21: note: expected ‘dma_addr_t * {aka long long unsigned int *}’ but argument is of type ‘phys_addr_t * {aka unsigned int *}’
 static inline void *dma_alloc_coherent(struct device *dev, size_t size,
                     ^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
scripts/Makefile.build:280: die Regel für Ziel „drivers/firmware/qcom_scm.o“ scheiterte
make[2]: *** [drivers/firmware/qcom_scm.o] Fehler 1
scripts/Makefile.build:497: die Regel für Ziel „drivers/firmware“ scheiterte

Luckily there is already a patch to fix this in linux-next:

firmware: qcom_scm: Use proper types for dma mappings

I hope someone can take care of this.

Regards
Stefan


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