treewide: Fix function prototypes for module_param_call()

Several function prototypes for the set/get functions defined by module_param_call() have a slightly wrong argument types. This fixes those in an effort to clean up the calls when running under type-enforced compiler instrumentation for CFI. This is the result of running the following semantic patch: @match_module_param_call_function@ declarer name module_param_call; identifier _name, _set_func, _get_func; expression _arg, _mode; @@ module_param_call(_name, _set_func, _get_func, _arg, _mode); @fix_set_prototype depends on match_module_param_call_function@ identifier match_module_param_call_function._set_func; identifier _val, _param; type _val_type, _param_type; @@ int _set_func( -_val_type _val +const char * _val , -_param_type _param +const struct kernel_param * _param ) { ... } @fix_get_prototype depends on match_module_param_call_function@ identifier match_module_param_call_function._get_func; identifier _val, _param; type _val_type, _param_type; @@ int _get_func( -_val_type _val +char * _val , -_param_type _param +const struct kernel_param * _param ) { ... } Two additional by-hand changes are included for places where the above Coccinelle script didn't notice them: drivers/platform/x86/thinkpad_acpi.c fs/lockd/svc.c Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2017-10-17 19:04:42 -07:00 · 2017-10-17 19:04:42 -07:00 · e4dca7b7aa
parent b2f270e874
commit e4dca7b7aa
42 changed files with 87 additions and 72 deletions
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@ -742,7 +742,7 @@ static void cmm_exit(void)
 * Return value:
 * 	0 on success / other on failure
 **/
-static int cmm_set_disable(const char *val, struct kernel_param *kp)
+static int cmm_set_disable(const char *val, const struct kernel_param *kp)
 {
 	int disable = simple_strtoul(val, NULL, 10);

--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@ -592,7 +592,7 @@ enum __force_cpu_type {

 static int force_cpu_type;

-static int set_cpu_type(const char *str, struct kernel_param *kp)
+static int set_cpu_type(const char *str, const struct kernel_param *kp)
 {
 	if (!strcmp(str, "timer")) {
 		force_cpu_type = timer;
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@ -557,7 +557,8 @@ static int acpi_button_remove(struct acpi_device *device)
 	return 0;
 }

-static int param_set_lid_init_state(const char *val, struct kernel_param *kp)
+static int param_set_lid_init_state(const char *val,
+				    const struct kernel_param *kp)
 {
 	int result = 0;

@ -575,7 +576,8 @@ static int param_set_lid_init_state(const char *val, struct kernel_param *kp)
 	return result;
 }

-static int param_get_lid_init_state(char *buffer, struct kernel_param *kp)
+static int param_get_lid_init_state(char *buffer,
+				    const struct kernel_param *kp)
 {
 	switch (lid_init_state) {
 	case ACPI_BUTTON_LID_INIT_OPEN:
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@ -1939,7 +1939,8 @@ static const struct dev_pm_ops acpi_ec_pm = {
 	SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume)
 };

-static int param_set_event_clearing(const char *val, struct kernel_param *kp)
+static int param_set_event_clearing(const char *val,
+				    const struct kernel_param *kp)
 {
 	int result = 0;

@ -1957,7 +1958,8 @@ static int param_set_event_clearing(const char *val, struct kernel_param *kp)
 	return result;
 }

-static int param_get_event_clearing(char *buffer, struct kernel_param *kp)
+static int param_get_event_clearing(char *buffer,
+				    const struct kernel_param *kp)
 {
 	switch (ec_event_clearing) {
 	case ACPI_EC_EVT_TIMING_STATUS:
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@ -229,7 +229,8 @@ module_param_cb(trace_method_name, &param_ops_trace_method, &trace_method_name,
 module_param_cb(trace_debug_layer, &param_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644);
 module_param_cb(trace_debug_level, &param_ops_trace_attrib, &acpi_gbl_trace_dbg_level, 0644);

-static int param_set_trace_state(const char *val, struct kernel_param *kp)
+static int param_set_trace_state(const char *val,
+				 const struct kernel_param *kp)
 {
 	acpi_status status;
 	const char *method = trace_method_name;
@ -265,7 +266,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp)
 	return 0;
 }

-static int param_get_trace_state(char *buffer, struct kernel_param *kp)
+static int param_get_trace_state(char *buffer, const struct kernel_param *kp)
 {
 	if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED))
 		return sprintf(buffer, "disable");
@ -294,7 +295,8 @@ MODULE_PARM_DESC(aml_debug_output,
 		 "To enable/disable the ACPI Debug Object output.");

 /* /sys/module/acpi/parameters/acpica_version */
-static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
+static int param_get_acpica_version(char *buffer,
+				    const struct kernel_param *kp)
 {
 	int result;

--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@ -150,7 +150,7 @@ static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
 static int binder_stop_on_user_error;

 static int binder_set_stop_on_user_error(const char *val,
-					 struct kernel_param *kp)
+					 const struct kernel_param *kp)
 {
 	int ret;

--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@ -66,7 +66,7 @@ static void (*specific_poweroff_func)(ipmi_user_t user);
 /* Holds the old poweroff function so we can restore it on removal. */
 static void (*old_poweroff_func)(void);

-static int set_param_ifnum(const char *val, struct kernel_param *kp)
+static int set_param_ifnum(const char *val, const struct kernel_param *kp)
 {
 	int rv = param_set_int(val, kp);
 	if (rv)
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@ -1345,7 +1345,7 @@ static unsigned int num_slave_addrs;
 #define IPMI_MEM_ADDR_SPACE 1
 static const char * const addr_space_to_str[] = { "i/o", "mem" };

-static int hotmod_handler(const char *val, struct kernel_param *kp);
+static int hotmod_handler(const char *val, const struct kernel_param *kp);

 module_param_call(hotmod, hotmod_handler, NULL, NULL, 0200);
 MODULE_PARM_DESC(hotmod, "Add and remove interfaces.  See"
@ -1811,7 +1811,7 @@ static struct smi_info *smi_info_alloc(void)
 	return info;
 }

-static int hotmod_handler(const char *val, struct kernel_param *kp)
+static int hotmod_handler(const char *val, const struct kernel_param *kp)
 {
 	char *str = kstrdup(val, GFP_KERNEL);
 	int  rv;
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@ -50,7 +50,7 @@ int edac_mc_get_poll_msec(void)
 	return edac_mc_poll_msec;
 }

-static int edac_set_poll_msec(const char *val, struct kernel_param *kp)
+static int edac_set_poll_msec(const char *val, const struct kernel_param *kp)
 {
 	unsigned long l;
 	int ret;
--- a/drivers/edac/edac_module.c
+++ b/drivers/edac/edac_module.c
@ -19,7 +19,8 @@

 #ifdef CONFIG_EDAC_DEBUG

-static int edac_set_debug_level(const char *buf, struct kernel_param *kp)
+static int edac_set_debug_level(const char *buf,
+				const struct kernel_param *kp)
 {
 	unsigned long val;
 	int ret;
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@ -34,7 +34,8 @@ module_param(emulate_scroll_wheel, bool, 0644);
 MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel");

 static unsigned int scroll_speed = 32;
-static int param_set_scroll_speed(const char *val, struct kernel_param *kp) {
+static int param_set_scroll_speed(const char *val,
+				  const struct kernel_param *kp) {
 	unsigned long speed;
 	if (!val || kstrtoul(val, 0, &speed) || speed > 63)
 		return -EINVAL;
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@ -244,7 +244,7 @@ struct chs_geom {
 static unsigned int ide_disks;
 static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES];

-static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
+static int ide_set_disk_chs(const char *str, const struct kernel_param *kp)
 {
 	unsigned int a, b, c = 0, h = 0, s = 0, i, j = 1;

@ -328,7 +328,7 @@ static void ide_dev_apply_params(ide_drive_t *drive, u8 unit)

 static unsigned int ide_ignore_cable;

-static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
+static int ide_set_ignore_cable(const char *s, const struct kernel_param *kp)
 {
 	int i, j = 1;

--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@ -150,7 +150,7 @@ static struct kparam_string kp_txselect = {
 	.string = txselect_list,
 	.maxlen = MAX_ATTEN_LEN
 };
-static int  setup_txselect(const char *, struct kernel_param *);
+static int  setup_txselect(const char *, const struct kernel_param *);
 module_param_call(txselect, setup_txselect, param_get_string,
 		  &kp_txselect, S_IWUSR | S_IRUGO);
 MODULE_PARM_DESC(txselect,
@ -6169,7 +6169,7 @@ static void set_no_qsfp_atten(struct qib_devdata *dd, int change)
 }

 /* handle the txselect parameter changing */
-static int setup_txselect(const char *str, struct kernel_param *kp)
+static int setup_txselect(const char *str, const struct kernel_param *kp)
 {
 	struct qib_devdata *dd;
 	unsigned long val;
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@ -80,7 +80,7 @@ module_param(srpt_srq_size, int, 0444);
 MODULE_PARM_DESC(srpt_srq_size,
 		 "Shared receive queue (SRQ) size.");

-static int srpt_get_u64_x(char *buffer, struct kernel_param *kp)
+static int srpt_get_u64_x(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "0x%016llx", *(u64 *)kp->arg);
 }
--- a/drivers/isdn/hardware/mISDN/avmfritz.c
+++ b/drivers/isdn/hardware/mISDN/avmfritz.c
@ -156,7 +156,7 @@ _set_debug(struct fritzcard *card)
 }

 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct fritzcard *card;
--- a/drivers/isdn/hardware/mISDN/mISDNinfineon.c
+++ b/drivers/isdn/hardware/mISDN/mISDNinfineon.c
@ -244,7 +244,7 @@ _set_debug(struct inf_hw *card)
 }

 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct inf_hw *card;
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@ -111,7 +111,7 @@ _set_debug(struct tiger_hw *card)
 }

 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct tiger_hw *card;
--- a/drivers/isdn/hardware/mISDN/speedfax.c
+++ b/drivers/isdn/hardware/mISDN/speedfax.c
@ -94,7 +94,7 @@ _set_debug(struct sfax_hw *card)
 }

 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct sfax_hw *card;
--- a/drivers/isdn/hardware/mISDN/w6692.c
+++ b/drivers/isdn/hardware/mISDN/w6692.c
@ -101,7 +101,7 @@ _set_debug(struct w6692_hw *card)
 }

 static int
-set_debug(const char *val, struct kernel_param *kp)
+set_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret;
 	struct w6692_hw *card;
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@ -5357,7 +5357,7 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
 	return NULL;
 }

-static int add_named_array(const char *val, struct kernel_param *kp)
+static int add_named_array(const char *val, const struct kernel_param *kp)
 {
 	/*
 	 * val must be "md_*" or "mdNNN".
@ -9274,11 +9274,11 @@ static __exit void md_exit(void)
 subsys_initcall(md_init);
 module_exit(md_exit)

-static int get_ro(char *buffer, struct kernel_param *kp)
+static int get_ro(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "%d", start_readonly);
 }
-static int set_ro(const char *val, struct kernel_param *kp)
+static int set_ro(const char *val, const struct kernel_param *kp)
 {
 	return kstrtouint(val, 10, (unsigned int *)&start_readonly);
 }
--- a/drivers/media/pci/tw686x/tw686x-core.c
+++ b/drivers/media/pci/tw686x/tw686x-core.c
@ -72,12 +72,12 @@ static const char *dma_mode_name(unsigned int mode)
 	}
 }

-static int tw686x_dma_mode_get(char *buffer, struct kernel_param *kp)
+static int tw686x_dma_mode_get(char *buffer, const struct kernel_param *kp)
 {
 	return sprintf(buffer, "%s", dma_mode_name(dma_mode));
 }

-static int tw686x_dma_mode_set(const char *val, struct kernel_param *kp)
+static int tw686x_dma_mode_set(const char *val, const struct kernel_param *kp)
 {
 	if (!strcasecmp(val, dma_mode_name(TW686X_DMA_MODE_MEMCPY)))
 		dma_mode = TW686X_DMA_MODE_MEMCPY;
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@ -2230,7 +2230,7 @@ static int uvc_reset_resume(struct usb_interface *intf)
 * Module parameters
 */

-static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
+static int uvc_clock_param_get(char *buffer, const struct kernel_param *kp)
 {
 	if (uvc_clock_param == CLOCK_MONOTONIC)
 		return sprintf(buffer, "CLOCK_MONOTONIC");
@ -2238,7 +2238,7 @@ static int uvc_clock_param_get(char *buffer, struct kernel_param *kp)
 		return sprintf(buffer, "CLOCK_REALTIME");
 }

-static int uvc_clock_param_set(const char *val, struct kernel_param *kp)
+static int uvc_clock_param_set(const char *val, const struct kernel_param *kp)
 {
 	if (strncasecmp(val, "clock_", strlen("clock_")) == 0)
 		val += strlen("clock_");
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@ -99,7 +99,7 @@ module_param(mpt_channel_mapping, int, 0);
 MODULE_PARM_DESC(mpt_channel_mapping, " Mapping id's to channels (default=0)");

 static int mpt_debug_level;
-static int mpt_set_debug_level(const char *val, struct kernel_param *kp);
+static int mpt_set_debug_level(const char *val, const struct kernel_param *kp);
 module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
 		  &mpt_debug_level, 0600);
 MODULE_PARM_DESC(mpt_debug_level,
@ -242,7 +242,7 @@ pci_enable_io_access(struct pci_dev *pdev)
 	pci_write_config_word(pdev, PCI_COMMAND, command_reg);
 }

-static int mpt_set_debug_level(const char *val, struct kernel_param *kp)
+static int mpt_set_debug_level(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	MPT_ADAPTER *ioc;
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@ -1132,7 +1132,8 @@ static void kgdbts_put_char(u8 chr)
 		ts.run_test(0, chr);
 }

-static int param_set_kgdbts_var(const char *kmessage, struct kernel_param *kp)
+static int param_set_kgdbts_var(const char *kmessage,
+				const struct kernel_param *kp)
 {
 	int len = strlen(kmessage);

--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@ -431,7 +431,7 @@ static int block2mtd_setup2(const char *val)
 }


-static int block2mtd_setup(const char *val, struct kernel_param *kp)
+static int block2mtd_setup(const char *val, const struct kernel_param *kp)
 {
 #ifdef MODULE
 	return block2mtd_setup2(val);
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@ -266,7 +266,7 @@ static int phram_setup(const char *val)
 	return ret;
 }

-static int phram_param_call(const char *val, struct kernel_param *kp)
+static int phram_param_call(const char *val, const struct kernel_param *kp)
 {
 #ifdef MODULE
 	return phram_setup(val);
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@ -1334,7 +1334,7 @@ static int bytes_str_to_int(const char *str)
 * This function returns zero in case of success and a negative error code in
 * case of error.
 */
-static int ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
+static int ubi_mtd_param_parse(const char *val, const struct kernel_param *kp)
 {
 	int i, len;
 	struct mtd_dev_param *p;
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@ -1060,7 +1060,8 @@ void pci_disable_link_state(struct pci_dev *pdev, int state)
 }
 EXPORT_SYMBOL(pci_disable_link_state);

-static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
+static int pcie_aspm_set_policy(const char *val,
+				const struct kernel_param *kp)
 {
 	int i;
 	struct pcie_link_state *link;
@ -1087,7 +1088,7 @@ static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
 	return 0;
 }

-static int pcie_aspm_get_policy(char *buffer, struct kernel_param *kp)
+static int pcie_aspm_get_policy(char *buffer, const struct kernel_param *kp)
 {
 	int i, cnt = 0;
 	for (i = 0; i < ARRAY_SIZE(policy_str); i++)
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@ -9543,7 +9543,7 @@ static struct ibm_init_struct ibms_init[] __initdata = {
 	},
 };

-static int __init set_ibm_param(const char *val, struct kernel_param *kp)
+static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
 {
 	unsigned int i;
 	struct ibm_struct *ibm;
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@ -32,13 +32,13 @@ MODULE_AUTHOR("Open-FCoE.org");
 MODULE_DESCRIPTION("FIP discovery protocol and FCoE transport for FCoE HBAs");
 MODULE_LICENSE("GPL v2");

-static int fcoe_transport_create(const char *, struct kernel_param *);
-static int fcoe_transport_destroy(const char *, struct kernel_param *);
+static int fcoe_transport_create(const char *, const struct kernel_param *);
+static int fcoe_transport_destroy(const char *, const struct kernel_param *);
 static int fcoe_transport_show(char *buffer, const struct kernel_param *kp);
 static struct fcoe_transport *fcoe_transport_lookup(struct net_device *device);
 static struct fcoe_transport *fcoe_netdev_map_lookup(struct net_device *device);
-static int fcoe_transport_enable(const char *, struct kernel_param *);
-static int fcoe_transport_disable(const char *, struct kernel_param *);
+static int fcoe_transport_enable(const char *, const struct kernel_param *);
+static int fcoe_transport_disable(const char *, const struct kernel_param *);
 static int libfcoe_device_notification(struct notifier_block *notifier,
 				    ulong event, void *ptr);

@ -865,7 +865,8 @@ EXPORT_SYMBOL(fcoe_ctlr_destroy_store);
 *
 * Returns: 0 for success
 */
-static int fcoe_transport_create(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_create(const char *buffer,
+				 const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@ -930,7 +931,8 @@ out_nodev:
 *
 * Returns: 0 for success
 */
-static int fcoe_transport_destroy(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_destroy(const char *buffer,
+				  const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@ -974,7 +976,8 @@ out_nodev:
 *
 * Returns: 0 for success
 */
-static int fcoe_transport_disable(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_disable(const char *buffer,
+				  const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
@ -1008,7 +1011,8 @@ out_nodev:
 *
 * Returns: 0 for success
 */
-static int fcoe_transport_enable(const char *buffer, struct kernel_param *kp)
+static int fcoe_transport_enable(const char *buffer,
+				 const struct kernel_param *kp)
 {
 	int rc = -ENODEV;
 	struct net_device *netdev = NULL;
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@ -105,7 +105,7 @@ _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc);
 *
 */
 static int
-_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
+_scsih_set_fwfault_debug(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	struct MPT3SAS_ADAPTER *ioc;
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@ -281,7 +281,7 @@ struct _scsi_io_transfer {
 * Note: The logging levels are defined in mpt3sas_debug.h.
 */
 static int
-_scsih_set_debug_level(const char *val, struct kernel_param *kp)
+_scsih_set_debug_level(const char *val, const struct kernel_param *kp)
 {
 	int ret = param_set_int(val, kp);
 	struct MPT3SAS_ADAPTER *ioc;
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@ -245,7 +245,8 @@ static void kgdboc_put_char(u8 chr)
 					kgdb_tty_line, chr);
 }

-static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp)
+static int param_set_kgdboc_var(const char *kmessage,
+				const struct kernel_param *kp)
 {
 	int len = strlen(kmessage);

--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@ -31,7 +31,7 @@ static struct kmem_cache *fuse_inode_cachep;
 struct list_head fuse_conn_list;
 DEFINE_MUTEX(fuse_mutex);

-static int set_global_limit(const char *val, struct kernel_param *kp);
+static int set_global_limit(const char *val, const struct kernel_param *kp);

 unsigned max_user_bgreq;
 module_param_call(max_user_bgreq, set_global_limit, param_get_uint,
@ -823,7 +823,7 @@ static void sanitize_global_limit(unsigned *limit)
 		*limit = (1 << 16) - 1;
 }

-static int set_global_limit(const char *val, struct kernel_param *kp)
+static int set_global_limit(const char *val, const struct kernel_param *kp)
 {
 	int rv;

--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@ -602,7 +602,7 @@ static struct ctl_table nlm_sysctl_root[] = {
 */

 #define param_set_min_max(name, type, which_strtol, min, max)		\
-static int param_set_##name(const char *val, struct kernel_param *kp)	\
+static int param_set_##name(const char *val, const struct kernel_param *kp) \
 {									\
 	char *endp;							\
 	__typeof__(type) num = which_strtol(val, &endp, 0);		\
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@ -88,13 +88,13 @@ struct workqueue_struct *user_dlm_worker;
 */
 #define DLMFS_CAPABILITIES "bast stackglue"
 static int param_set_dlmfs_capabilities(const char *val,
-					struct kernel_param *kp)
+					const struct kernel_param *kp)
 {
 	printk(KERN_ERR "%s: readonly parameter\n", kp->name);
 	return -EINVAL;
 }
 static int param_get_dlmfs_capabilities(char *buffer,
-					struct kernel_param *kp)
+					const struct kernel_param *kp)
 {
 	return strlcpy(buffer, DLMFS_CAPABILITIES,
 		       strlen(DLMFS_CAPABILITIES) + 1);
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@ -284,7 +284,7 @@ static inline bool nf_ct_should_gc(const struct nf_conn *ct)

 struct kernel_param;

-int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
+int nf_conntrack_set_hashsize(const char *val, const struct kernel_param *kp);
 int nf_conntrack_hash_resize(unsigned int hashsize);

 extern struct hlist_nulls_head *nf_conntrack_hash;
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@ -1940,7 +1940,7 @@ int nf_conntrack_hash_resize(unsigned int hashsize)
 	return 0;
 }

-int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp)
+int nf_conntrack_set_hashsize(const char *val, const struct kernel_param *kp)
 {
 	unsigned int hashsize;
 	int rc;
--- a/net/netfilter/nf_nat_ftp.c
+++ b/net/netfilter/nf_nat_ftp.c
@ -134,7 +134,7 @@ static int __init nf_nat_ftp_init(void)
 }

 /* Prior to 2.6.11, we had a ports param.  No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
+static int warn_set(const char *val, const struct kernel_param *kp)
 {
 	printk(KERN_INFO KBUILD_MODNAME
 	       ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
--- a/net/netfilter/nf_nat_irc.c
+++ b/net/netfilter/nf_nat_irc.c
@ -106,7 +106,7 @@ static int __init nf_nat_irc_init(void)
 }

 /* Prior to 2.6.11, we had a ports param.  No longer, but don't break users. */
-static int warn_set(const char *val, struct kernel_param *kp)
+static int warn_set(const char *val, const struct kernel_param *kp)
 {
 	printk(KERN_INFO KBUILD_MODNAME
 	       ": kernel >= 2.6.10 only uses 'ports' for conntrack modules\n");
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@ -50,7 +50,7 @@ EXPORT_SYMBOL_GPL(svc_pool_map);
 static DEFINE_MUTEX(svc_pool_map_mutex);/* protects svc_pool_map.count only */

 static int
-param_set_pool_mode(const char *val, struct kernel_param *kp)
+param_set_pool_mode(const char *val, const struct kernel_param *kp)
 {
 	int *ip = (int *)kp->arg;
 	struct svc_pool_map *m = &svc_pool_map;
@ -80,7 +80,7 @@ out:
 }

 static int
-param_get_pool_mode(char *buf, struct kernel_param *kp)
+param_get_pool_mode(char *buf, const struct kernel_param *kp)
 {
 	int *ip = (int *)kp->arg;

--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@ -1200,11 +1200,11 @@ static const struct kernel_param_ops param_ops_aalockpolicy = {
 	.get = param_get_aalockpolicy
 };

-static int param_set_audit(const char *val, struct kernel_param *kp);
-static int param_get_audit(char *buffer, struct kernel_param *kp);
+static int param_set_audit(const char *val, const struct kernel_param *kp);
+static int param_get_audit(char *buffer, const struct kernel_param *kp);

-static int param_set_mode(const char *val, struct kernel_param *kp);
-static int param_get_mode(char *buffer, struct kernel_param *kp);
+static int param_set_mode(const char *val, const struct kernel_param *kp);
+static int param_get_mode(char *buffer, const struct kernel_param *kp);

 /* Flag values, also controllable via /sys/module/apparmor/parameters
 * We define special types as we want to do additional mediation.
@ -1338,7 +1338,7 @@ static int param_get_aauint(char *buffer, const struct kernel_param *kp)
 	return param_get_uint(buffer, kp);
 }

-static int param_get_audit(char *buffer, struct kernel_param *kp)
+static int param_get_audit(char *buffer, const struct kernel_param *kp)
 {
 	if (!apparmor_enabled)
 		return -EINVAL;
@ -1347,7 +1347,7 @@ static int param_get_audit(char *buffer, struct kernel_param *kp)
 	return sprintf(buffer, "%s", audit_mode_names[aa_g_audit]);
 }

-static int param_set_audit(const char *val, struct kernel_param *kp)
+static int param_set_audit(const char *val, const struct kernel_param *kp)
 {
 	int i;

@ -1368,7 +1368,7 @@ static int param_set_audit(const char *val, struct kernel_param *kp)
 	return -EINVAL;
 }

-static int param_get_mode(char *buffer, struct kernel_param *kp)
+static int param_get_mode(char *buffer, const struct kernel_param *kp)
 {
 	if (!apparmor_enabled)
 		return -EINVAL;
@ -1378,7 +1378,7 @@ static int param_get_mode(char *buffer, struct kernel_param *kp)
 	return sprintf(buffer, "%s", aa_profile_mode_names[aa_g_profile_mode]);
 }

-static int param_set_mode(const char *val, struct kernel_param *kp)
+static int param_set_mode(const char *val, const struct kernel_param *kp)
 {
 	int i;