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| author |   Nathan Chancellor <natechancellor@gmail.com> | 2019-02-19 02:15:20 -0700 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@arndb.de> | 2019-02-20 16:24:09 +0100 |
| commit | 50ceca6894adb834126ae644920902473bdc2d33 (patch) | |
| tree | 3bce00af6760dd3050e1fbd639f00af7a283a40c /drivers/tee | |
| parent | Merge tag 'soc-fsl-next-v5.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers (diff) | |
| download | linux-dev-50ceca6894adb834126ae644920902473bdc2d33.tar.xz linux-dev-50ceca6894adb834126ae644920902473bdc2d33.zip | |
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.c | 11 |
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(¶m, 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)) |