On Fri, 2015-08-07 at 13:18 +1000, Daniel Axtens wrote:
> An IO address, tagged with __iomem, is passed to debugfs_create_file
> as private data. This requires that it be cast to void *. The cast
> creates a sparse warning:
> /scratch/dja/linux-capi/drivers/misc/cxl/debugfs.c:51:57: warning: cast
> removes address space of expression
>
> The address space marker is added back in the file operations
> (fops_io_u64).
>
> Silence the warning with __force.
>
> Signed-off-by: Daniel Axtens <d...@axtens.net>
Acked-by: Michael Neuling <mi...@neuling.org>
> ---
> drivers/misc/cxl/debugfs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c
> index 825c412580bc..18df6f44af2a 100644
> --- a/drivers/misc/cxl/debugfs.c
> +++ b/drivers/misc/cxl/debugfs.c
> @@ -48,7 +48,7 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get,
> debugfs_io_u64_set, "0x
> static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode,
> struct dentry *parent, u64 __iomem
> *value)
> {
> - return debugfs_create_file(name, mode, parent, (void *)value,
> &fops_io_x64);
> + return debugfs_create_file(name, mode, parent, (void __force *)value,
> &fops_io_x64);
> }
>
> int cxl_debugfs_adapter_add(struct cxl *adapter)
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