On Mon, 7 Dec 2020 08:47:04 -0800 "Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote: > I freely confess that I have absolutely no idea what it doesn't like. > It is complaining about this header comment, correct? > > /** > * kmem_last_alloc_stack - Get return address and stack for last allocation > * @object: object for which to find last-allocation return address. > * @stackp: %NULL or pointer to location to place return-address stack. > * @nstackp: maximum number of return addresses that may be stored. > * > * If the pointer references a slab-allocated object and if sufficient > * debugging is enabled, return the return address for the corresponding > * allocation. If stackp is non-%NULL in %CONFIG_STACKTRACE kernels running > * the slub allocator, also copy the return-address stack into @stackp, > * limited by @nstackp. Otherwise, return %NULL or an appropriate error > * code using %ERR_PTR(). > * > * Return: return address from last allocation, %NULL or negative error code. > */ The problem is the %ERR_PTR(). I'm honestly not quite sure why, Sphinx is being a little weird there. But in any case the % notation is supposed to mark a constant, which is not the case here. I'd just take the % signs out. jon
