On Thu, Jul 2, 2020 at 11:26 AM Anson Huang <anson.hu...@nxp.com> wrote: [...] > > > @@ -143,16 +148,18 @@ void imx_cscmr1_fixup(u32 *val) > > > static int imx_keep_uart_clocks; > > > static struct clk ** const *imx_uart_clocks; > > > > > > -static int __init imx_keep_uart_clocks_param(char *str) > > > +static int __maybe_unused imx_keep_uart_clocks_param(char *str) > > > { > > > imx_keep_uart_clocks = 1; > > > > > > return 0; > > > } > > > +#ifndef MODULE > > > __setup_param("earlycon", imx_keep_uart_earlycon, > > > imx_keep_uart_clocks_param, 0); > > > __setup_param("earlyprintk", imx_keep_uart_earlyprintk, > > > imx_keep_uart_clocks_param, 0); > > > > I feel not only the __setup_param, the whole logic of keep_uart_clocks > > are not needed for Module case. Is it true? > > Yes, but the 'keep_uart_clocks' is false by default and the function > imx_keep_uart_clocks_param() > already has '__maybe_unused', it does NOT impact anything if it is for module > build, so I did NOT > add the #ifndef check for them, just to keep code easy and clean. >
IMHO do not compile them is a more easy and clean way. Then users don't have to look into the code logic which is meaingless for Module case. BTW, it really does not make any sense to only condionally compile __setup_parm() but left the param functions definition to be handled by __maybe_unnused. They're together part of code, aren't they? Regards Aisheng Regards Aisheng > Thanks, > Anson >