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Commit d6c4932f authored by Sam Bobroff's avatar Sam Bobroff Committed by Michael Ellerman
Browse files

powerpc/eeh: Strengthen types of eeh traversal functions 



The traversal functions eeh_pe_traverse() and eeh_pe_dev_traverse()
both provide their first argument as void * but every single user casts
it to the expected type.

Change the type of the first parameter from void * to the appropriate
type, and clean up all uses.

Signed-off-by: default avatarSam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent a0bd5464

arch/powerpc/include/asm/eeh.h

+4 −3
Original line number Diff line number Diff line
@@ -262,7 +262,8 @@ static inline bool eeh_state_active(int state) 
	== (EEH_STATE_MMIO_ACTIVE | EEH_STATE_DMA_ACTIVE);

}



typedef void *(*eeh_traverse_func)(void *data, void *flag);

typedef void *(*eeh_edev_traverse_func)(struct eeh_dev *edev, void *flag);

typedef void *(*eeh_pe_traverse_func)(struct eeh_pe *pe, void *flag);

void eeh_set_pe_aux_size(int size);

int eeh_phb_pe_create(struct pci_controller *phb);

struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb);
@@ -272,9 +273,9 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev); 
int eeh_rmv_from_parent_pe(struct eeh_dev *edev);

void eeh_pe_update_time_stamp(struct eeh_pe *pe);

void *eeh_pe_traverse(struct eeh_pe *root,

		eeh_traverse_func fn, void *flag);

		      eeh_pe_traverse_func fn, void *flag);

void *eeh_pe_dev_traverse(struct eeh_pe *root,

		eeh_traverse_func fn, void *flag);

			  eeh_edev_traverse_func fn, void *flag);

void eeh_pe_restore_bars(struct eeh_pe *pe);

const char *eeh_pe_loc_get(struct eeh_pe *pe);

struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe);

arch/powerpc/kernel/eeh.c

+5 −8
Original line number Diff line number Diff line
@@ -263,9 +263,8 @@ static size_t eeh_dump_dev_log(struct eeh_dev *edev, char *buf, size_t len) 
	return n;

}



static void *eeh_dump_pe_log(void *data, void *flag)

static void *eeh_dump_pe_log(struct eeh_pe *pe, void *flag)

{

	struct eeh_pe *pe = data;

	struct eeh_dev *edev, *tmp;

	size_t *plen = flag;
@@ -686,9 +685,9 @@ int eeh_pci_enable(struct eeh_pe *pe, int function) 
	return rc;

}



static void *eeh_disable_and_save_dev_state(void *data, void *userdata)

static void *eeh_disable_and_save_dev_state(struct eeh_dev *edev,

					    void *userdata)

{

	struct eeh_dev *edev = data;

	struct pci_dev *pdev = eeh_dev_to_pci_dev(edev);

	struct pci_dev *dev = userdata;
@@ -714,9 +713,8 @@ static void *eeh_disable_and_save_dev_state(void *data, void *userdata) 
	return NULL;

}



static void *eeh_restore_dev_state(void *data, void *userdata)

static void *eeh_restore_dev_state(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = data;

	struct pci_dn *pdn = eeh_dev_to_pdn(edev);

	struct pci_dev *pdev = eeh_dev_to_pci_dev(edev);

	struct pci_dev *dev = userdata;
@@ -856,11 +854,10 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state stat 
 * the indicated device and its children so that the bunch of the

 * devices could be reset properly.

 */

static void *eeh_set_dev_freset(void *data, void *flag)

static void *eeh_set_dev_freset(struct eeh_dev *edev, void *flag)

{

	struct pci_dev *dev;

	unsigned int *freset = (unsigned int *)flag;

	struct eeh_dev *edev = (struct eeh_dev *)data;



	dev = eeh_dev_to_pci_dev(edev);

	if (dev)

arch/powerpc/kernel/eeh_driver.c

+10 −20
Original line number Diff line number Diff line
@@ -149,9 +149,8 @@ static bool eeh_dev_removed(struct eeh_dev *edev) 
	return false;

}



static void *eeh_dev_save_state(void *data, void *userdata)

static void *eeh_dev_save_state(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = data;

	struct pci_dev *pdev;



	if (!edev)
@@ -184,9 +183,8 @@ static void *eeh_dev_save_state(void *data, void *userdata) 
 * merge the device driver responses. Cumulative response

 * passed back in "userdata".

 */

static void *eeh_report_error(void *data, void *userdata)

static void *eeh_report_error(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	enum pci_ers_result rc, *res = userdata;

	struct pci_driver *driver;
@@ -231,9 +229,8 @@ static void *eeh_report_error(void *data, void *userdata) 
 * are now enabled. Collects up and merges the device driver responses.

 * Cumulative response passed back in "userdata".

 */

static void *eeh_report_mmio_enabled(void *data, void *userdata)

static void *eeh_report_mmio_enabled(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	enum pci_ers_result rc, *res = userdata;

	struct pci_driver *driver;
@@ -273,9 +270,8 @@ static void *eeh_report_mmio_enabled(void *data, void *userdata) 
 * some actions, usually to save data the driver needs so that the

 * driver can work again while the device is recovered.

 */

static void *eeh_report_reset(void *data, void *userdata)

static void *eeh_report_reset(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	enum pci_ers_result rc, *res = userdata;

	struct pci_driver *driver;
@@ -310,9 +306,8 @@ static void *eeh_report_reset(void *data, void *userdata) 
	return NULL;

}



static void *eeh_dev_restore_state(void *data, void *userdata)

static void *eeh_dev_restore_state(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = data;

	struct pci_dev *pdev;



	if (!edev)
@@ -348,9 +343,8 @@ static void *eeh_dev_restore_state(void *data, void *userdata) 
 * could resume so that the device driver can do some initialization

 * to make the recovered device work again.

 */

static void *eeh_report_resume(void *data, void *userdata)

static void *eeh_report_resume(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	bool was_in_error;

	struct pci_driver *driver;
@@ -397,9 +391,8 @@ static void *eeh_report_resume(void *data, void *userdata) 
 * This informs the device driver that the device is permanently

 * dead, and that no further recovery attempts will be made on it.

 */

static void *eeh_report_failure(void *data, void *userdata)

static void *eeh_report_failure(struct eeh_dev *edev, void *userdata)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	struct pci_driver *driver;
@@ -457,10 +450,9 @@ static void *eeh_add_virt_device(void *data, void *userdata) 
	return NULL;

}



static void *eeh_rmv_device(void *data, void *userdata)

static void *eeh_rmv_device(struct eeh_dev *edev, void *userdata)

{

	struct pci_driver *driver;

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dev *dev = eeh_dev_to_pci_dev(edev);

	struct eeh_rmv_data *rmv_data = (struct eeh_rmv_data *)userdata;

	int *removed = rmv_data ? &rmv_data->removed : NULL;
@@ -532,9 +524,8 @@ static void *eeh_rmv_device(void *data, void *userdata) 
	return NULL;

}



static void *eeh_pe_detach_dev(void *data, void *userdata)

static void *eeh_pe_detach_dev(struct eeh_pe *pe, void *userdata)

{

	struct eeh_pe *pe = (struct eeh_pe *)data;

	struct eeh_dev *edev, *tmp;



	eeh_pe_for_each_dev(pe, edev, tmp) {
@@ -555,9 +546,8 @@ static void *eeh_pe_detach_dev(void *data, void *userdata) 
 * PE reset (for 3 times), we try to clear the frozen state

 * for 3 times as well.

 */

static void *__eeh_clear_pe_frozen_state(void *data, void *flag)

static void *__eeh_clear_pe_frozen_state(struct eeh_pe *pe, void *flag)

{

	struct eeh_pe *pe = (struct eeh_pe *)data;

	bool clear_sw_state = *(bool *)flag;

	int i, rc = 1;

arch/powerpc/kernel/eeh_pe.c

+7 −12
Original line number Diff line number Diff line
@@ -173,7 +173,7 @@ static struct eeh_pe *eeh_pe_next(struct eeh_pe *pe, 
 * to be traversed.

 */

void *eeh_pe_traverse(struct eeh_pe *root,

		      eeh_traverse_func fn, void *flag)

		      eeh_pe_traverse_func fn, void *flag)

{

	struct eeh_pe *pe;

	void *ret;
@@ -196,7 +196,7 @@ void *eeh_pe_traverse(struct eeh_pe *root, 
 * PE and its child PEs.

 */

void *eeh_pe_dev_traverse(struct eeh_pe *root,

		eeh_traverse_func fn, void *flag)

			  eeh_edev_traverse_func fn, void *flag)

{

	struct eeh_pe *pe;

	struct eeh_dev *edev, *tmp;
@@ -235,9 +235,8 @@ struct eeh_pe_get_flag { 
	int config_addr;

};



static void *__eeh_pe_get(void *data, void *flag)

static void *__eeh_pe_get(struct eeh_pe *pe, void *flag)

{

	struct eeh_pe *pe = (struct eeh_pe *)data;

	struct eeh_pe_get_flag *tmp = (struct eeh_pe_get_flag *) flag;



	/* Unexpected PHB PE */
@@ -551,9 +550,8 @@ void eeh_pe_update_time_stamp(struct eeh_pe *pe) 
 * PE. Also, the associated PCI devices will be put into IO frozen

 * state as well.

 */

static void *__eeh_pe_state_mark(void *data, void *flag)

static void *__eeh_pe_state_mark(struct eeh_pe *pe, void *flag)

{

	struct eeh_pe *pe = (struct eeh_pe *)data;

	int state = *((int *)flag);

	struct eeh_dev *edev, *tmp;

	struct pci_dev *pdev;
@@ -595,9 +593,8 @@ void eeh_pe_state_mark(struct eeh_pe *pe, int state) 
}

EXPORT_SYMBOL_GPL(eeh_pe_state_mark);



static void *__eeh_pe_dev_mode_mark(void *data, void *flag)

static void *__eeh_pe_dev_mode_mark(struct eeh_dev *edev, void *flag)

{

	struct eeh_dev *edev = data;

	int mode = *((int *)flag);



	edev->mode |= mode;
@@ -625,9 +622,8 @@ void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode) 
 * given PE. Besides, we also clear the check count of the PE

 * as well.

 */

static void *__eeh_pe_state_clear(void *data, void *flag)

static void *__eeh_pe_state_clear(struct eeh_pe *pe, void *flag)

{

	struct eeh_pe *pe = (struct eeh_pe *)data;

	int state = *((int *)flag);

	struct eeh_dev *edev, *tmp;

	struct pci_dev *pdev;
@@ -858,9 +854,8 @@ static void eeh_restore_device_bars(struct eeh_dev *edev) 
 * the expansion ROM base address, the latency timer, and etc.

 * from the saved values in the device node.

 */

static void *eeh_restore_one_device_bars(void *data, void *flag)

static void *eeh_restore_one_device_bars(struct eeh_dev *edev, void *flag)

{

	struct eeh_dev *edev = (struct eeh_dev *)data;

	struct pci_dn *pdn = eeh_dev_to_pdn(edev);



	/* Do special restore for bridges */