Merge tag 'counter-fixes-for-6.8b' of https://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-linus

William writes:

First set of Counter fixes for 6.8

One fix to ensure private data in struct counter_device_allochelper has
minimum alignment for safe DMA operations.

* tag 'counter-fixes-for-6.8b' of https://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
  counter: fix privdata alignment

Author: gregkh

drivers/counter/counter-core.c

@@ -31,10 +31,11 @@ struct counter_device_allochelper {
 	struct counter_device counter;
 
 	/*
-	 * This is cache line aligned to ensure private data behaves like if it
-	 * were kmalloced separately.
+	 * This ensures private data behaves like if it were kmalloced
+	 * separately. Also ensures the minimum alignment for safe DMA
+	 * operations (which may or may not mean cache alignment).
 	 */
-	unsigned long privdata[] ____cacheline_aligned;
+	unsigned long privdata[] __aligned(ARCH_DMA_MINALIGN);
 };
 
 static void counter_device_release(struct device *dev)