examples Remove the `fn config()` idiom.

It was only useful for doing #[embassy_executor::main(config = "config()")]`. Now that
it's gone, it makes more sense to build the config in main directly.

3 files changed, 9 insertions, 18 deletions

diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index f8904fa03..1ec30353d 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -33,15 +33,12 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
     stack.run().await
 }
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main]
-async fn main(spawner: Spawner) -> ! {
-    let p = embassy_stm32::init(config());
     info!("Hello World!");
 
     // Generate random seed.
diff --git a/examples/stm32f7/src/bin/hello.rs b/examples/stm32f7/src/bin/hello.rs
index 6facb9bb7..26d3555a2 100644
--- a/examples/stm32f7/src/bin/hello.rs
+++ b/examples/stm32f7/src/bin/hello.rs
@@ -9,15 +9,12 @@ use embassy_stm32::time::Hertz;
 use embassy_stm32::Config;
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(Hertz(84_000_000));
-    config
-}
+    let _p = embassy_stm32::init(config);
 
-#[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
-    let _p = embassy_stm32::init(config());
     loop {
         info!("Hello World!");
         Timer::after(Duration::from_secs(1)).await;
diff --git a/examples/stm32f7/src/bin/sdmmc.rs b/examples/stm32f7/src/bin/sdmmc.rs
index 975c5b91f..9d97a1de4 100644
--- a/examples/stm32f7/src/bin/sdmmc.rs
+++ b/examples/stm32f7/src/bin/sdmmc.rs
@@ -9,15 +9,12 @@ use embassy_stm32::time::mhz;
 use embassy_stm32::{interrupt, Config};
 use {defmt_rtt as _, panic_probe as _};
 
-fn config() -> Config {
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.sys_ck = Some(mhz(200));
-    config
-}
+    let p = embassy_stm32::init(config);
 
-#[embassy_executor::main]
-async fn main(_spawner: Spawner) -> ! {
-    let p = embassy_stm32::init(config());
     info!("Hello World!");
 
     let irq = interrupt::take!(SDMMC1);