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Hi, I recently came across the below #define # define __iomem __attribute__((noderef, address_space(2))) Browsing the internet I could find the following detail: "iomem" means two separate things: it means that sparse should complain if the pointer is ever dereferenced (it's a "noderef" pointer) directly, and it's in "address space 2" as opposed to the normal address space (0). My query : what does this address_space(2) or address_space(0) mean? Thanks in advance, Arjun |
