Randy Dunlap <[email protected]> wrote: > b. make <asm/switch_to.h> know about CONFIG_FPU not enabled > > David, which one do you prefer?
b. > From: Randy Dunlap <[email protected]> > > When CONFIG_FPU is not enabled on arch/mn10300, <asm/switch_to.h> > causes a build error with a call to fpu_save(): > > kernel/built-in.o: In function `.L410': > core.c:(.sched.text+0x28a): undefined reference to `fpu_save' > > Fix this by defining switch_fpu() in <asm/switch_to.h> only when > CONFIG_FPU is enabled. > > Signed-off-by: Randy Dunlap <[email protected]> > Reported-by: kbuild test robot <[email protected]> > Cc: David Howells <[email protected]> > --- > arch/mn10300/include/asm/switch_to.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- lnx-410-rc4.orig/arch/mn10300/include/asm/switch_to.h > +++ lnx-410-rc4/arch/mn10300/include/asm/switch_to.h > @@ -16,7 +16,7 @@ > struct task_struct; > struct thread_struct; > > -#if !defined(CONFIG_LAZY_SAVE_FPU) > +#if defined(CONFIG_FPU) && !defined(CONFIG_LAZY_SAVE_FPU) > struct fpu_state_struct; > extern asmlinkage void fpu_save(struct fpu_state_struct *); > #define switch_fpu(prev, next) > \ Reviewed-by: David Howells <[email protected]>
