Re: [PATCH 4/4] cxl: sparse: Silence iomem warning in debugfs file creation

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 r=

emoves address space of expression

=20
The address space marker is added back in the file operations
(fops_io_u64).
=20
Silence the warning with __force.
=20
Signed-off-by: Daniel Axtens <redacted>

Acked-by: Michael Neuling <redacted>

, debugfs_io_u64_set, "0x

 static struct dentry *debugfs_create_io_x64(const char *name, umode_t mo=

de,

 					    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);

 }
=20
 int cxl_debugfs_adapter_add(struct cxl *adapter)