Last call to sys_swapcontext() from ASM was removed by commitfbcee2ebe8("powerpc/32: Always save non volatile GPRs at syscall entry") sys_debug_setcontext() prototype not needed anymore since commitf3675644e1("powerpc/syscalls: signal_{32, 64} - switch to SYSCALL_DEFINE") sys_switch_endian() prototype not needed anymore since commit81dac81778("powerpc/64: Make sys_switch_endian() traceable") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> [mpe: Keep _mcount() prototype to avoid modpost errors] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/3ed660a585df2080ea8412ec20fbf652f5bf013a.1646413435.git.christophe.leroy@csgroup.eu