Re: [PATCH 4/5] ocxl: Remove superfluous 'extern' from headers
From: Andrew Donnellan
Date: Thu Mar 14 2019 - 01:09:02 EST
On 13/3/19 3:07 pm, Alastair D'Silva wrote:
From: Alastair D'Silva <alastair@xxxxxxxxxxx>
The 'extern' keyword adds no value here.
Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx>
Acked-by: Andrew Donnellan <andrew.donnellan@xxxxxxxxxxx>
---
drivers/misc/ocxl/ocxl_internal.h | 54 +++++++++++++++----------------
include/misc/ocxl.h | 36 ++++++++++-----------
2 files changed, 44 insertions(+), 46 deletions(-)
diff --git a/drivers/misc/ocxl/ocxl_internal.h b/drivers/misc/ocxl/ocxl_internal.h
index a32f2151029f..321b29e77f45 100644
--- a/drivers/misc/ocxl/ocxl_internal.h
+++ b/drivers/misc/ocxl/ocxl_internal.h
@@ -16,7 +16,6 @@
extern struct pci_driver ocxl_pci_driver;
-
struct ocxl_fn {
struct device dev;
int bar_used[3];
@@ -92,41 +91,40 @@ struct ocxl_process_element {
__be32 software_state;
};
+struct ocxl_afu *ocxl_afu_get(struct ocxl_afu *afu);
+void ocxl_afu_put(struct ocxl_afu *afu);
-extern struct ocxl_afu *ocxl_afu_get(struct ocxl_afu *afu);
-extern void ocxl_afu_put(struct ocxl_afu *afu);
-
-extern int ocxl_create_cdev(struct ocxl_afu *afu);
-extern void ocxl_destroy_cdev(struct ocxl_afu *afu);
-extern int ocxl_register_afu(struct ocxl_afu *afu);
-extern void ocxl_unregister_afu(struct ocxl_afu *afu);
+int ocxl_create_cdev(struct ocxl_afu *afu);
+void ocxl_destroy_cdev(struct ocxl_afu *afu);
+int ocxl_register_afu(struct ocxl_afu *afu);
+void ocxl_unregister_afu(struct ocxl_afu *afu);
-extern int ocxl_file_init(void);
-extern void ocxl_file_exit(void);
+int ocxl_file_init(void);
+void ocxl_file_exit(void);
-extern int ocxl_pasid_afu_alloc(struct ocxl_fn *fn, u32 size);
-extern void ocxl_pasid_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
-extern int ocxl_actag_afu_alloc(struct ocxl_fn *fn, u32 size);
-extern void ocxl_actag_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
+int ocxl_pasid_afu_alloc(struct ocxl_fn *fn, u32 size);
+void ocxl_pasid_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
+int ocxl_actag_afu_alloc(struct ocxl_fn *fn, u32 size);
+void ocxl_actag_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
-extern struct ocxl_context *ocxl_context_alloc(void);
-extern int ocxl_context_init(struct ocxl_context *ctx, struct ocxl_afu *afu,
+struct ocxl_context *ocxl_context_alloc(void);
+int ocxl_context_init(struct ocxl_context *ctx, struct ocxl_afu *afu,
struct address_space *mapping);
-extern int ocxl_context_attach(struct ocxl_context *ctx, u64 amr);
-extern int ocxl_context_mmap(struct ocxl_context *ctx,
+int ocxl_context_attach(struct ocxl_context *ctx, u64 amr);
+int ocxl_context_mmap(struct ocxl_context *ctx,
struct vm_area_struct *vma);
-extern int ocxl_context_detach(struct ocxl_context *ctx);
-extern void ocxl_context_detach_all(struct ocxl_afu *afu);
-extern void ocxl_context_free(struct ocxl_context *ctx);
+int ocxl_context_detach(struct ocxl_context *ctx);
+void ocxl_context_detach_all(struct ocxl_afu *afu);
+void ocxl_context_free(struct ocxl_context *ctx);
-extern int ocxl_sysfs_add_afu(struct ocxl_afu *afu);
-extern void ocxl_sysfs_remove_afu(struct ocxl_afu *afu);
+int ocxl_sysfs_add_afu(struct ocxl_afu *afu);
+void ocxl_sysfs_remove_afu(struct ocxl_afu *afu);
-extern int ocxl_afu_irq_alloc(struct ocxl_context *ctx, u64 *irq_offset);
-extern int ocxl_afu_irq_free(struct ocxl_context *ctx, u64 irq_offset);
-extern void ocxl_afu_irq_free_all(struct ocxl_context *ctx);
-extern int ocxl_afu_irq_set_fd(struct ocxl_context *ctx, u64 irq_offset,
+int ocxl_afu_irq_alloc(struct ocxl_context *ctx, u64 *irq_offset);
+int ocxl_afu_irq_free(struct ocxl_context *ctx, u64 irq_offset);
+void ocxl_afu_irq_free_all(struct ocxl_context *ctx);
+int ocxl_afu_irq_set_fd(struct ocxl_context *ctx, u64 irq_offset,
int eventfd);
-extern u64 ocxl_afu_irq_get_addr(struct ocxl_context *ctx, u64 irq_offset);
+u64 ocxl_afu_irq_get_addr(struct ocxl_context *ctx, u64 irq_offset);
#endif /* _OCXL_INTERNAL_H_ */
diff --git a/include/misc/ocxl.h b/include/misc/ocxl.h
index 9ff6ddc28e22..4544573cc93c 100644
--- a/include/misc/ocxl.h
+++ b/include/misc/ocxl.h
@@ -53,7 +53,7 @@ struct ocxl_fn_config {
* Read the configuration space of a function and fill in a
* ocxl_fn_config structure with all the function details
*/
-extern int ocxl_config_read_function(struct pci_dev *dev,
+int ocxl_config_read_function(struct pci_dev *dev,
struct ocxl_fn_config *fn);
/*
@@ -62,14 +62,14 @@ extern int ocxl_config_read_function(struct pci_dev *dev,
* AFU indexes can be sparse, so a driver should check all indexes up
* to the maximum found in the function description
*/
-extern int ocxl_config_check_afu_index(struct pci_dev *dev,
+int ocxl_config_check_afu_index(struct pci_dev *dev,
struct ocxl_fn_config *fn, int afu_idx);
/*
* Read the configuration space of a function for the AFU specified by
* the index 'afu_idx'. Fills in a ocxl_afu_config structure
*/
-extern int ocxl_config_read_afu(struct pci_dev *dev,
+int ocxl_config_read_afu(struct pci_dev *dev,
struct ocxl_fn_config *fn,
struct ocxl_afu_config *afu,
u8 afu_idx);
@@ -77,7 +77,7 @@ extern int ocxl_config_read_afu(struct pci_dev *dev,
/*
* Get the max PASID value that can be used by the function
*/
-extern int ocxl_config_get_pasid_info(struct pci_dev *dev, int *count);
+int ocxl_config_get_pasid_info(struct pci_dev *dev, int *count);
/*
* Tell an AFU, by writing in the configuration space, the PASIDs that
@@ -87,7 +87,7 @@ extern int ocxl_config_get_pasid_info(struct pci_dev *dev, int *count);
* 'afu_control_offset' is the offset of the AFU control DVSEC which
* can be found in the function configuration
*/
-extern void ocxl_config_set_afu_pasid(struct pci_dev *dev,
+void ocxl_config_set_afu_pasid(struct pci_dev *dev,
int afu_control_offset,
int pasid_base, u32 pasid_count_log);
@@ -98,7 +98,7 @@ extern void ocxl_config_set_afu_pasid(struct pci_dev *dev,
* 'supported' is the total number of actags desired by all the AFUs
* of the function.
*/
-extern int ocxl_config_get_actag_info(struct pci_dev *dev,
+int ocxl_config_get_actag_info(struct pci_dev *dev,
u16 *base, u16 *enabled, u16 *supported);
/*
@@ -108,7 +108,7 @@ extern int ocxl_config_get_actag_info(struct pci_dev *dev,
* 'func_offset' is the offset of the Function DVSEC that can found in
* the function configuration
*/
-extern void ocxl_config_set_actag(struct pci_dev *dev, int func_offset,
+void ocxl_config_set_actag(struct pci_dev *dev, int func_offset,
u32 actag_base, u32 actag_count);
/*
@@ -118,7 +118,7 @@ extern void ocxl_config_set_actag(struct pci_dev *dev, int func_offset,
* 'afu_control_offset' is the offset of the AFU control DVSEC for the
* desired AFU. It can be found in the AFU configuration
*/
-extern void ocxl_config_set_afu_actag(struct pci_dev *dev,
+void ocxl_config_set_afu_actag(struct pci_dev *dev,
int afu_control_offset,
int actag_base, int actag_count);
@@ -128,7 +128,7 @@ extern void ocxl_config_set_afu_actag(struct pci_dev *dev,
* 'afu_control_offset' is the offset of the AFU control DVSEC for the
* desired AFU. It can be found in the AFU configuration
*/
-extern void ocxl_config_set_afu_state(struct pci_dev *dev,
+void ocxl_config_set_afu_state(struct pci_dev *dev,
int afu_control_offset, int enable);
/*
@@ -139,7 +139,7 @@ extern void ocxl_config_set_afu_state(struct pci_dev *dev,
* between the host and device, and set the Transaction Layer on both
* accordingly.
*/
-extern int ocxl_config_set_TL(struct pci_dev *dev, int tl_dvsec);
+int ocxl_config_set_TL(struct pci_dev *dev, int tl_dvsec);
/*
* Request an AFU to terminate a PASID.
@@ -152,7 +152,7 @@ extern int ocxl_config_set_TL(struct pci_dev *dev, int tl_dvsec);
* 'afu_control_offset' is the offset of the AFU control DVSEC for the
* desired AFU. It can be found in the AFU configuration
*/
-extern int ocxl_config_terminate_pasid(struct pci_dev *dev,
+int ocxl_config_terminate_pasid(struct pci_dev *dev,
int afu_control_offset, int pasid);
/*
@@ -165,13 +165,13 @@ extern int ocxl_config_terminate_pasid(struct pci_dev *dev,
* Returns a 'link handle' that should be used for further calls for
* the link
*/
-extern int ocxl_link_setup(struct pci_dev *dev, int PE_mask,
+int ocxl_link_setup(struct pci_dev *dev, int PE_mask,
void **link_handle);
/*
* Remove the association between the function and its link.
*/
-extern void ocxl_link_release(struct pci_dev *dev, void *link_handle);
+void ocxl_link_release(struct pci_dev *dev, void *link_handle);
/*
* Add a Process Element to the Shared Process Area for a link.
@@ -183,7 +183,7 @@ extern void ocxl_link_release(struct pci_dev *dev, void *link_handle);
* 'xsl_err_data' is an argument passed to the above callback, if
* defined
*/
-extern int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr,
+int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr,
u64 amr, struct mm_struct *mm,
void (*xsl_err_cb)(void *data, u64 addr, u64 dsisr),
void *xsl_err_data);
@@ -195,12 +195,12 @@ extern int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr,
* pasid: the PASID for the AFU context
* tid: the new thread id for the process element
*/
-extern int ocxl_link_update_pe(void *link_handle, int pasid, __u16 tid);
+int ocxl_link_update_pe(void *link_handle, int pasid, __u16 tid);
/*
* Remove a Process Element from the Shared Process Area for a link
*/
-extern int ocxl_link_remove_pe(void *link_handle, int pasid);
+int ocxl_link_remove_pe(void *link_handle, int pasid);
/*
* Allocate an AFU interrupt associated to the link.
@@ -212,12 +212,12 @@ extern int ocxl_link_remove_pe(void *link_handle, int pasid);
* interrupt. It is an MMIO address which needs to be remapped (one
* page).
*/
-extern int ocxl_link_irq_alloc(void *link_handle, int *hw_irq,
+int ocxl_link_irq_alloc(void *link_handle, int *hw_irq,
u64 *obj_handle);
/*
* Free a previously allocated AFU interrupt
*/
-extern void ocxl_link_free_irq(void *link_handle, int hw_irq);
+void ocxl_link_free_irq(void *link_handle, int hw_irq);
#endif /* _MISC_OCXL_H_ */
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnellan@xxxxxxxxxxx IBM Australia Limited