From e4dca7b7aa08b22893c45485d222b5807c1375ae Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 17 Oct 2017 19:04:42 -0700 Subject: 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 Signed-off-by: Jessica Yu --- drivers/acpi/sysfs.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/acpi/sysfs.c') diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 78a5a23010ab..cf2c1b2b2d64 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -229,7 +229,8 @@ module_param_cb(trace_method_name, ¶m_ops_trace_method, &trace_method_name, module_param_cb(trace_debug_layer, ¶m_ops_trace_attrib, &acpi_gbl_trace_dbg_layer, 0644); module_param_cb(trace_debug_level, ¶m_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; -- cgit