Konrad Rzeszutek Wilk writes ("[Xen-devel] [PATCH 09/10] xen/swiotlb: Fix
compile warnings when using plain integer instead of NULL pointer."):
> arch/x86/xen/pci-swiotlb-xen.c:96:1: warning: Using plain integer as NULL
> pointer
> arch/x86/xen/pci-swiotlb-xen.c:96:1: warning: Using plain integer as NULL
> pointer
This warning is simply wrong for this code:
> IOMMU_INIT_FINISH(pci_xen_swiotlb_detect,
> - 0,
> + NULL,
There is (according to the C language specifications) nothing wrong
with writing 0 for a null pointer.
Nor does CODING_STYLE say that it is forbidden to just write 0.
Ian.
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