change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/md/dm-snap-persistent.c
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@@ -252,7 +252,7 @@
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 	/*
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 	 * Issue the synchronous I/O from a different thread
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-	 * to avoid generic_make_request recursion.
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+	 * to avoid submit_bio_noacct recursion.
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 	 */
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 	INIT_WORK_ONSTACK(&req.work, do_metadata);
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 	queue_work(ps->metadata_wq, &req.work);
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@@ -284,16 +284,9 @@
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  */
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 static int area_io(struct pstore *ps, int op, int op_flags)
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 {
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-	int r;
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-	chunk_t chunk;
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+	chunk_t chunk = area_location(ps, ps->current_area);
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-	chunk = area_location(ps, ps->current_area);
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-
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-	r = chunk_io(ps, ps->area, chunk, op, op_flags, 0);
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-	if (r)
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-		return r;
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-
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-	return 0;
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+	return chunk_io(ps, ps->area, chunk, op, op_flags, 0);
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 }
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 static void zero_memory_area(struct pstore *ps)
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@@ -613,7 +606,7 @@
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 						    chunk_t old, chunk_t new),
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 				    void *callback_context)
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 {
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-	int r, uninitialized_var(new_snapshot);
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+	int r, new_snapshot;
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 	struct pstore *ps = get_info(store);
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 	/*