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    Use acpi_os_map_memory() instead of ioremap() in einj driver · 459413db
    Luck, Tony 提交于
    ioremap() has become more picky and is now spitting out console messages like:
    
     ioremap error for 0xbddbd000-0xbddbe000, requested 0x10, got 0x0
    
    when loading the einj driver.  What we are trying to so here is map
    a couple of data structures that the EINJ table points to. Perhaps
    acpi_os_map_memory() is a better tool for this?
    Most importantly it works, but as a side benefit it maps the structures
    into kernel virtual space so we can access them with normal C memory
    dereferences, so instead of using:
    	writel(param1, &v5param->apicid);
    we can use the more natural:
    	v5param->apicid = param1;
    Signed-off-by: NTony Luck <tony.luck@intel.com>
    Signed-off-by: NLen Brown <len.brown@intel.com>
    459413db
einj.c 20.0 KB