...

• max_size = (be->max < max_size) ? be->max : max_size;

min() / max() ?

The use of min() and min3() seems to generate tons of sparse warnings (see below), so I'll leave the code with an explicit test and a comment stating why.

sparse helped us find quite a few issues with endianess, const, iomem qualifiers, I'd like to keep it quiet on non-issues.

CHECK   sound/soc/sof/control.c sound/soc/sof/control.c:300:20: warning: expression using sizeof(void) sound/soc/sof/control.c:300:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void) sound/soc/sof/control.c:396:20: warning: expression using sizeof(void)