[PATCH v5 08/22] psci: Fix the function type for psci_initcall_t

Sami Tolvanen
2022-09-08T21:55:29Z

Functions called through a psci_initcall_t pointer all have
non-const arguments. Fix the type definition to avoid tripping
indirect call checks with CFI_CLANG.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
---
drivers/firmware/psci/psci.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index cfb448eabdaa..75ef784a3789 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -274,7 +274,7 @@ static void set_conduit(enum arm_smccc_conduit conduit)
psci_conduit = conduit;
}

-static int get_set_conduit_method(struct device_node *np)
+static int get_set_conduit_method(const struct device_node *np)
{
const char *method;

@@ -528,7 +528,7 @@ typedef int (*psci_initcall_t)(const struct device_node *);
*
* Probe based on PSCI PSCI_VERSION function
*/
-static int __init psci_0_2_init(struct device_node *np)
+static int __init psci_0_2_init(const struct device_node *np)
{
int err;

@@ -549,7 +549,7 @@ static int __init psci_0_2_init(struct device_node *np)
/*
* PSCI < v0.2 get PSCI Function IDs via DT.
*/
-static int __init psci_0_1_init(struct device_node *np)
+static int __init psci_0_1_init(const struct device_node *np)
{
u32 id;
int err;
@@ -585,7 +585,7 @@ static int __init psci_0_1_init(struct device_node *np)
return 0;
}

-static int __init psci_1_0_init(struct device_node *np)
+static int __init psci_1_0_init(const struct device_node *np)
{
int err;

--
2.37.2.789.g6183377224-goog