Re: [PATCH v5 3/9] dyndbg: add DEFINE_DYNAMIC_DEBUG_CATEGORIES and callbacks

[Matthew Wilcox]

On Fri, Aug 13, 2021 at 06:51:05PM +0300, Andy Shevchenko wrote:
> On Fri, Aug 13, 2021 at 09:17:11AM -0600, Jim Cromie wrote:
> > +int param_set_dyndbg(const char *instr, const struct kernel_param *kp)
> > +{
> > +	unsigned long inbits;
> > +	int rc, i, chgct = 0, totct = 0;
> > +	char query[OUR_QUERY_SIZE];
> > +	struct dyndbg_bitdesc *bitmap = (struct dyndbg_bitdesc *) kp->data;
> 
> So you need space after ')' ?

More importantly, if ->data is of type 'void *', it is bad style to
cast the pointer at all.  I can't tell what type 'data' has; if it
is added to kernel_param as part of this series, I wasn't cc'd on
the patch that did that.