Re: [PATCH] tty: n_hdlc: fix build on SPARC

[David Miller]

From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Date: Mon, 30 Sep 2019 19:15:12 -0700

> From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> 
> Fix tty driver build on SPARC by not using __exitdata.
> It appears that SPARC does not support section .exit.data.
> 
> Fixes these build errors:
> 
> `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o
> `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o
> `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o
> `.exit.data' referenced in section `.exit.text' of drivers/tty/n_hdlc.o: defined in discarded section `.exit.data' of drivers/tty/n_hdlc.o
> 
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> Fixes: 063246641d4a ("format-security: move static strings to const")
> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

I'll add an .exit.data to arch/sparc/kernel/vmlinux.lds.S to fix this.