[PATCH] shpchp: miscellaneous cleanups

Remove un-necessary header includes, remove dead code, remove
some type casts, receive function return in the correct data
type...

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 29 insertions, 97 deletions

diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index d55a9a7f8d2b..d46a47603386 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -27,17 +27,10 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
 #include <linux/pci.h>
-#include <asm/system.h>
 #include "shpchp.h"
 
 #ifdef DEBUG
@@ -282,7 +275,7 @@ static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds)
 
 static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u16 cmd_status;
         int retval = 0;
         u16 temp_word;
@@ -328,7 +321,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 
 static int hpc_check_cmd_status(struct controller *ctrl)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle;
         u16 cmd_status;
         int retval = 0;
 
@@ -368,7 +361,7 @@ static int hpc_check_cmd_status(struct controller *ctrl)
 
 static int hpc_get_attention_status(struct slot *slot, u8 *status)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status;
         u8 atten_led_state;
@@ -408,7 +401,7 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status)
 
 static int hpc_get_power_status(struct slot * slot, u8 *status)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status;
         u8 slot_state;
@@ -450,7 +443,7 @@ static int hpc_get_power_status(struct slot * slot, u8 *status)
 
 static int hpc_get_latch_status(struct slot *slot, u8 *status)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status;
 
@@ -473,7 +466,7 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status)
 
 static int hpc_get_adapter_status(struct slot *slot, u8 *status)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status;
         u8 card_state;
@@ -496,7 +489,7 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status)
 
 static int hpc_get_prog_int(struct slot *slot, u8 *prog_int)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
 
         DBG_ENTER_ROUTINE 
         
@@ -513,7 +506,7 @@ static int hpc_get_prog_int(struct slot *slot, u8 *prog_int)
 
 static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status, sec_bus_status;
         u8 m66_cap, pcix_cap, pi;
@@ -594,7 +587,7 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
 
 static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u16 sec_bus_status;
         u8 pi;
         int retval = 0;
@@ -623,7 +616,7 @@ static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode)
 
 static int hpc_query_power_fault(struct slot * slot)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u32 slot_reg;
         u16 slot_status;
         u8 pwr_fault_state, status;
@@ -647,7 +640,7 @@ static int hpc_query_power_fault(struct slot * slot)
 
 static int hpc_set_attention_status(struct slot *slot, u8 value)
 {
-        struct php_ctlr_state_s *php_ctlr =(struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd = 0;
         int rc = 0;
 
@@ -683,7 +676,7 @@ static int hpc_set_attention_status(struct slot *slot, u8 value)
 
 static void hpc_set_green_led_on(struct slot *slot)
 {
-        struct php_ctlr_state_s *php_ctlr =(struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
 
         if (!slot->ctrl->hpc_ctlr_handle) {
@@ -705,7 +698,7 @@ static void hpc_set_green_led_on(struct slot *slot)
 
 static void hpc_set_green_led_off(struct slot *slot)
 {
-        struct php_ctlr_state_s *php_ctlr =(struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
 
         if (!slot->ctrl->hpc_ctlr_handle) {
@@ -727,7 +720,7 @@ static void hpc_set_green_led_off(struct slot *slot)
 
 static void hpc_set_green_led_blink(struct slot *slot)
 {
-        struct php_ctlr_state_s *php_ctlr =(struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
 
         if (!slot->ctrl->hpc_ctlr_handle) {
@@ -754,7 +747,7 @@ int shpc_get_ctlr_slot_config(struct controller *ctrl,
         int *updown,            /* physical_slot_num increament: 1 or -1        */
         int *flags)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle;
 
         DBG_ENTER_ROUTINE 
 
@@ -776,7 +769,7 @@ int shpc_get_ctlr_slot_config(struct controller *ctrl,
 
 static void hpc_release_ctlr(struct controller *ctrl)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle;
         struct php_ctlr_state_s *p, *p_prev;
 
         DBG_ENTER_ROUTINE 
@@ -828,7 +821,7 @@ DBG_LEAVE_ROUTINE
 
 static int hpc_power_on_slot(struct slot * slot)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
         int retval = 0;
 
@@ -859,7 +852,7 @@ static int hpc_power_on_slot(struct slot * slot)
 
 static int hpc_slot_enable(struct slot * slot)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
         int retval = 0;
 
@@ -890,7 +883,7 @@ static int hpc_slot_enable(struct slot * slot)
 
 static int hpc_slot_disable(struct slot * slot)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         u8 slot_cmd;
         int retval = 0;
 
@@ -920,51 +913,12 @@ static int hpc_slot_disable(struct slot * slot)
         return retval;
 }
 
-static int hpc_enable_all_slots( struct slot *slot )
-{
-        int retval = 0;
-
-        DBG_ENTER_ROUTINE 
-        
-        if (!slot->ctrl->hpc_ctlr_handle) {
-                err("%s: Invalid HPC controller handle!\n", __FUNCTION__);
-                return -1;
-        }
-
-        retval = shpc_write_cmd(slot, 0, SET_ENABLE_ALL);
-        if (retval) {
-                err("%s: Write command failed!\n", __FUNCTION__);
-                return -1;
-        }
-
-        DBG_LEAVE_ROUTINE
-
-        return retval;
-}
-
-static int hpc_pwr_on_all_slots(struct slot *slot)
-{
-        int retval = 0;
-
-        DBG_ENTER_ROUTINE 
-
-        retval = shpc_write_cmd(slot, 0, SET_PWR_ON_ALL);
-
-        if (retval) {
-                err("%s: Write command failed!\n", __FUNCTION__);
-                return -1;
-        }
-
-        DBG_LEAVE_ROUTINE
-        return retval;
-}
-
 static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value)
 {
         u8 slot_cmd;
         u8 pi;
         int retval = 0;
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
 
         DBG_ENTER_ROUTINE 
         
@@ -1184,7 +1138,7 @@ static irqreturn_t shpc_isr(int IRQ, void *dev_id, struct pt_regs *regs)
 
 static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN;
         int retval = 0;
         u8 pi;
@@ -1253,7 +1207,7 @@ static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value)
 
 static int hpc_get_cur_bus_speed (struct slot *slot, enum pci_bus_speed *value)
 {
-        struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *) slot->ctrl->hpc_ctlr_handle;
+        struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle;
         enum pci_bus_speed bus_speed = PCI_SPEED_UNKNOWN;
         u16 sec_bus_status;
         int retval = 0;
@@ -1367,8 +1321,6 @@ static struct hpc_ops shpchp_hpc_ops = {
         .power_on_slot                  = hpc_power_on_slot,
         .slot_enable                    = hpc_slot_enable,
         .slot_disable                   = hpc_slot_disable,
-        .enable_all_slots               = hpc_enable_all_slots,
-        .pwr_on_all_slots               = hpc_pwr_on_all_slots,
         .set_bus_speed_mode             = hpc_set_bus_speed_mode,         
         .set_attention_status   = hpc_set_attention_status,
         .get_power_status               = hpc_get_power_status,
@@ -1391,12 +1343,7 @@ static struct hpc_ops shpchp_hpc_ops = {
         .check_cmd_status               = hpc_check_cmd_status,
 };
 
-int shpc_init(struct controller * ctrl,
-                struct pci_dev * pdev,
-                php_intr_callback_t attention_button_callback,
-                php_intr_callback_t switch_change_callback,
-                php_intr_callback_t presence_change_callback,
-                php_intr_callback_t power_fault_callback)
+int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
 {
         struct php_ctlr_state_s *php_ctlr, *p;
         void *instance_id = ctrl;
@@ -1405,7 +1352,6 @@ int shpc_init(struct controller * ctrl,
         static int first = 1;
         u32 shpc_cap_offset, shpc_base_offset;
         u32 tempdword, slot_reg;
-        u16 vendor_id, device_id;
         u8 i;
 
         DBG_ENTER_ROUTINE
@@ -1422,21 +1368,8 @@ int shpc_init(struct controller * ctrl,
 
         php_ctlr->pci_dev = pdev;       /* save pci_dev in context */
 
-        rc = pci_read_config_word(pdev, PCI_VENDOR_ID, &vendor_id);
-        dbg("%s: Vendor ID: %x\n",__FUNCTION__, vendor_id);
-        if (rc) {
-                err("%s: unable to read PCI configuration data\n", __FUNCTION__);
-                goto abort_free_ctlr;
-        }
-
-        rc = pci_read_config_word(pdev, PCI_DEVICE_ID, &device_id);
-        dbg("%s: Device ID: %x\n",__FUNCTION__, device_id);
-        if (rc) {
-                err("%s: unable to read PCI configuration data\n", __FUNCTION__);
-                goto abort_free_ctlr;
-        }
-
-        if ((vendor_id == PCI_VENDOR_ID_AMD) || (device_id == PCI_DEVICE_ID_AMD_GOLAM_7450)) {
+        if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device ==
+                                PCI_DEVICE_ID_AMD_GOLAM_7450)) {
                 shpc_base_offset = 0;  /* amd shpc driver doesn't use this; assume 0 */
         } else {
                 if ((shpc_cap_offset = pci_find_capability(pdev, PCI_CAP_ID_SHPC)) == 0) {
@@ -1514,11 +1447,10 @@ int shpc_init(struct controller * ctrl,
         php_ctlr->irq = pdev->irq;
         dbg("HPC interrupt = %d\n", php_ctlr->irq);
 
-        /* Save interrupt callback info */
-        php_ctlr->attention_button_callback = attention_button_callback;
-        php_ctlr->switch_change_callback = switch_change_callback;
-        php_ctlr->presence_change_callback = presence_change_callback;
-        php_ctlr->power_fault_callback = power_fault_callback;
+        php_ctlr->attention_button_callback = shpchp_handle_attention_button,
+        php_ctlr->switch_change_callback = shpchp_handle_switch_change;
+        php_ctlr->presence_change_callback = shpchp_handle_presence_change;
+        php_ctlr->power_fault_callback = shpchp_handle_power_fault;
         php_ctlr->callback_instance_id = instance_id;
 
         /* Return PCI Controller Info */