diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2023-06-14 18:29:41 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-06-25 14:31:08 -0700 |
| commit | 688baac1097d30a51d6469efdc8707fdac80eab6 (patch) | |
| tree | 5dac3393840e97ad38f0312e4639f65e80a81e95 /drivers/cxl | |
| parent | 9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff) | |
| download | linux-688baac1097d30a51d6469efdc8707fdac80eab6.tar.gz | |
cxl/regs: Clarify when a 'struct cxl_register_map' is input vs output
The @map parameter to cxl_probe_X_registers() is filled in with the
mapping parameters of the register block. The @map parameter to
cxl_map_X_registers() only reads that information to perform the
mapping. Mark @map const for cxl_map_X_registers() to clarify that it is
only an input to those helpers.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168679258103.3436160.4941603739448763855.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
| -rw-r--r-- | drivers/cxl/core/regs.c | 8 | ||||
| -rw-r--r-- | drivers/cxl/cxl.h | 4 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/cxl/core/regs.c b/drivers/cxl/core/regs.c index 1476a0299c9b6..52d1dbeda527c 100644 --- a/drivers/cxl/core/regs.c +++ b/drivers/cxl/core/regs.c @@ -200,10 +200,10 @@ void __iomem *devm_cxl_iomap_block(struct device *dev, resource_size_t addr, } int cxl_map_component_regs(struct device *dev, struct cxl_component_regs *regs, - struct cxl_register_map *map, unsigned long map_mask) + const struct cxl_register_map *map, unsigned long map_mask) { struct mapinfo { - struct cxl_reg_map *rmap; + const struct cxl_reg_map *rmap; void __iomem **addr; } mapinfo[] = { { &map->component_map.hdm_decoder, ®s->hdm_decoder }, @@ -233,11 +233,11 @@ EXPORT_SYMBOL_NS_GPL(cxl_map_component_regs, CXL); int cxl_map_device_regs(struct device *dev, struct cxl_device_regs *regs, - struct cxl_register_map *map) + const struct cxl_register_map *map) { resource_size_t phys_addr = map->resource; struct mapinfo { - struct cxl_reg_map *rmap; + const struct cxl_reg_map *rmap; void __iomem **addr; } mapinfo[] = { { &map->device_map.status, ®s->status, }, diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index f93a285389621..dfc94e76c7d6d 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -254,10 +254,10 @@ void cxl_probe_component_regs(struct device *dev, void __iomem *base, void cxl_probe_device_regs(struct device *dev, void __iomem *base, struct cxl_device_reg_map *map); int cxl_map_component_regs(struct device *dev, struct cxl_component_regs *regs, - struct cxl_register_map *map, + const struct cxl_register_map *map, unsigned long map_mask); int cxl_map_device_regs(struct device *dev, struct cxl_device_regs *regs, - struct cxl_register_map *map); + const struct cxl_register_map *map); enum cxl_regloc_type; int cxl_find_regblock(struct pci_dev *pdev, enum cxl_regloc_type type, |