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cxl: sparse: Silence iomem warning in debugfs file creation 

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
drops the __iomem annotation and so creates a sparse warning:

  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 <dja@axtens.net>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Daniel Axtens 2015-08-07 13:18:20 +10:00 committed by Michael Ellerman
parent 3d6b040e73
commit 83c3fee7e7
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/cxl/debugfs.c
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@ -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)