PCI/AER: Expose internal API for obtaining AER information

Export some common AER functions and structures for other PCI core drivers
to use.  Since this is making the function externally visible inside the
PCI core, prepend "aer_" to the function name.

Signed-off-by: Keith Busch <keith.busch@intel.com>
[bhelgaas: move AER declarations from linux/aer.h to drivers/pci/pci.h]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Oza Pawandeep <poza@codeaurora.org>

1 files changed, 5 insertions, 25 deletions

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index a2e88386af28..0a60275f0582 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -31,26 +31,6 @@
 #include "portdrv.h"
 
 #define AER_ERROR_SOURCES_MAX           100
-#define AER_MAX_MULTI_ERR_DEVICES       5       /* Not likely to have more */
-
-struct aer_err_info {
-        struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
-        int error_dev_num;
-
-        unsigned int id:16;
-
-        unsigned int severity:2;        /* 0:NONFATAL | 1:FATAL | 2:COR */
-        unsigned int __pad1:5;
-        unsigned int multi_error_valid:1;
-
-        unsigned int first_error:5;
-        unsigned int __pad2:2;
-        unsigned int tlp_header_valid:1;
-
-        unsigned int status;            /* COR/UNCOR Error Status */
-        unsigned int mask;              /* COR/UNCOR Error Mask */
-        struct aer_header_log_regs tlp; /* TLP Header */
-};
 
 struct aer_err_source {
         unsigned int status;
@@ -547,7 +527,7 @@ static void __aer_print_error(struct pci_dev *dev,
         }
 }
 
-static void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
+void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
 {
         int layer, agent;
         int id = ((dev->bus->number << 8) | dev->devfn);
@@ -876,7 +856,7 @@ EXPORT_SYMBOL_GPL(aer_recover_queue);
 #endif
 
 /**
- * get_device_error_info - read error status from dev and store it to info
+ * aer_get_device_error_info - read error status from dev and store it to info
  * @dev: pointer to the device expected to have a error record
  * @info: pointer to structure to store the error record
  *
@@ -884,7 +864,7 @@ EXPORT_SYMBOL_GPL(aer_recover_queue);
  *
  * Note that @info is reused among all error devices. Clear fields properly.
  */
-static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
+int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
 {
         int pos, temp;
 
@@ -942,11 +922,11 @@ static inline void aer_process_err_devices(struct aer_err_info *e_info)
 
         /* Report all before handle them, not to lost records by reset etc. */
         for (i = 0; i < e_info->error_dev_num && e_info->dev[i]; i++) {
-                if (get_device_error_info(e_info->dev[i], e_info))
+                if (aer_get_device_error_info(e_info->dev[i], e_info))
                         aer_print_error(e_info->dev[i], e_info);
         }
         for (i = 0; i < e_info->error_dev_num && e_info->dev[i]; i++) {
-                if (get_device_error_info(e_info->dev[i], e_info))
+                if (aer_get_device_error_info(e_info->dev[i], e_info))
                         handle_error_source(e_info->dev[i], e_info);
         }
 }