core: Relax lifetime constraint on msgs in I2CTransfer::transfer()

CHANGELOG.md

@@ -8,6 +8,8 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+- Relax lifetime constraint on `I2CTransfer::transfer` `msgs` reference
+
 ## [v0.6.1] - 2024-05-09
 
 - Properly ellide the start bit when sending a series of I2C messages as a

src/core.rs

@@ -137,7 +137,7 @@ pub trait I2CTransfer<'a> {
     /// Performs multiple serially chained I2C read/write transactions.  On
     /// success the return code is the number of successfully executed
     /// transactions
-    fn transfer(&mut self, msgs: &'a mut [Self::Message]) -> Result<u32, Self::Error>;
+    fn transfer(&mut self, msgs: &mut [Self::Message]) -> Result<u32, Self::Error>;
 }
 
 /// Read/Write I2C message

src/linux.rs

@@ -299,7 +299,7 @@ impl<'a> I2CTransfer<'a> for LinuxI2CDevice {
     type Message = LinuxI2CMessage<'a>;
 
     /// Issue the provided sequence of I2C transactions
-    fn transfer(&mut self, messages: &'a mut [Self::Message]) -> Result<u32, LinuxI2CError> {
+    fn transfer(&mut self, messages: &mut [Self::Message]) -> Result<u32, LinuxI2CError> {
         let msg_type = |flag: u16| flag & I2CMessageFlags::READ.bits();
         let mut prev_msg_type = None;
         for msg in messages.iter_mut() {
@@ -335,7 +335,7 @@ impl<'a> I2CTransfer<'a> for LinuxI2CBus {
     type Message = LinuxI2CMessage<'a>;
 
     /// Issue the provided sequence of I2C transactions
-    fn transfer(&mut self, msgs: &'a mut [Self::Message]) -> Result<u32, LinuxI2CError> {
+    fn transfer(&mut self, msgs: &mut [Self::Message]) -> Result<u32, LinuxI2CError> {
         ffi::i2c_rdwr(self.as_raw_fd(), msgs).map_err(From::from)
     }
 }

src/mock.rs

@@ -152,7 +152,7 @@ where
     type Message = MockI2CMessage<'a>;
 
     /// Issue the provided sequence of I2C transactions
-    fn transfer(&mut self, messages: &'a mut [Self::Message]) -> Result<u32, Self::Error> {
+    fn transfer(&mut self, messages: &mut [Self::Message]) -> Result<u32, Self::Error> {
         for msg in messages.iter_mut() {
             match &mut msg.msg_type {
                 MessageType::Read(data) => self.read(data)?,