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authorNathan Chancellor <natechancellor@gmail.com>2019-02-19 12:15:20 +0300
committerArnd Bergmann <arnd@arndb.de>2019-02-20 18:24:09 +0300
commit50ceca6894adb834126ae644920902473bdc2d33 (patch)
tree3bce00af6760dd3050e1fbd639f00af7a283a40c /drivers/tee
parent3b96fe66c7d9b6254739ceba00772ddd8846d2d6 (diff)
downloadlinux-50ceca6894adb834126ae644920902473bdc2d33.tar.xz
tee: optee: Initialize some structs using memset instead of braces
Clang warns: drivers/tee/optee/device.c:39:31: warning: suggest braces around initialization of subobject [-Wmissing-braces] struct tee_param param[4] = {0}; ^ {} drivers/tee/optee/device.c:92:48: warning: suggest braces around initialization of subobject [-Wmissing-braces] struct tee_ioctl_open_session_arg sess_arg = {0}; ^ {} 2 warnings generated. One way to fix these warnings is to add additional braces like Clang suggests; however, there has been a bit of push back from some maintainers, who just prefer memset as it is unambiguous, doesn't depend on a particular compiler version, and properly initializes all subobjects [1][2]. Do that here so there are no more warnings. [1]: https://lore.kernel.org/lkml/022e41c0-8465-dc7a-a45c-64187ecd9684@amd.com/ [2]: https://lore.kernel.org/lkml/20181128.215241.702406654469517539.davem@davemloft.net/ Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support") Link: https://github.com/ClangBuiltLinux/linux/issues/370 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/tee')
-rw-r--r--drivers/tee/optee/device.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/tee/optee/device.c b/drivers/tee/optee/device.c
index 5e4938bbef2b..167839b371f2 100644
--- a/drivers/tee/optee/device.c
+++ b/drivers/tee/optee/device.c
@@ -35,8 +35,11 @@ static int get_devices(struct tee_context *ctx, u32 session,
struct tee_shm *device_shm, u32 *shm_size)
{
u32 ret = 0;
- struct tee_ioctl_invoke_arg inv_arg = {0};
- struct tee_param param[4] = {0};
+ struct tee_ioctl_invoke_arg inv_arg;
+ struct tee_param param[4];
+
+ memset(&inv_arg, 0, sizeof(inv_arg));
+ memset(&param, 0, sizeof(param));
/* Invoke PTA_CMD_GET_DEVICES function */
inv_arg.func = PTA_CMD_GET_DEVICES;
@@ -89,13 +92,15 @@ int optee_enumerate_devices(void)
const uuid_t pta_uuid =
UUID_INIT(0x7011a688, 0xddde, 0x4053,
0xa5, 0xa9, 0x7b, 0x3c, 0x4d, 0xdf, 0x13, 0xb8);
- struct tee_ioctl_open_session_arg sess_arg = {0};
+ struct tee_ioctl_open_session_arg sess_arg;
struct tee_shm *device_shm = NULL;
const uuid_t *device_uuid = NULL;
struct tee_context *ctx = NULL;
u32 shm_size = 0, idx, num_devices = 0;
int rc;
+ memset(&sess_arg, 0, sizeof(sess_arg));
+
/* Open context with OP-TEE driver */
ctx = tee_client_open_context(NULL, optee_ctx_match, NULL, NULL);
if (IS_ERR(ctx))