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First set of Counter fixes for 6.8

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One fix to ensure private data in struct counter_device_allochelper has
 minimum alignment for safe DMA operations.
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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
This commit is contained in:
Greg Kroah-Hartman 2024-03-02 19:48:17 +01:00
commit febbe9b9c0
1 changed files with 4 additions and 3 deletions
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7
drivers/counter/counter-core.c
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@ -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)