Make invalidate_dcache private

1 files changed, 5 insertions, 1 deletions

diff --git a/src/peripheral/mod.rs b/src/peripheral/mod.rs
index 5be5760..4884223 100644
--- a/src/peripheral/mod.rs
+++ b/src/peripheral/mod.rs
@@ -623,9 +623,13 @@ impl Scb {
     }
 
     /// Invalidates D-cache
+    ///
+    /// Note that calling this while the dcache is enabled will probably wipe out your
+    /// stack, depending on optimisations, breaking returning to the call point.
+    /// It's used immediately before enabling the dcache, but not exported publicly.
     #[cfg(armv7m)]
     #[inline]
-    pub fn invalidate_dcache(&self, cpuid: &Cpuid) {
+    fn invalidate_dcache(&self, cpuid: &Cpuid) {
         // All of CBP is write-only so no data races are possible
         let cbp = unsafe { &mut *CBP.get() };