Unverified Commit d951b20b authored by Conor Dooley's avatar Conor Dooley Committed by Palmer Dabbelt
Browse files

riscv: traps: add missing prototype 



Sparse complains:
arch/riscv/kernel/traps.c:213:6: warning: symbol 'shadow_stack' was not declared. Should it be static?

The variable is used in entry.S, so declare shadow_stack there
alongside SHADOW_OVERFLOW_STACK_SIZE.

Fixes: 31da94c2 ("riscv: add VMAP_STACK overflow detection")
Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220814141237.493457-5-mail@conchuod.ie


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent b5c3aca8

arch/riscv/include/asm/thread_info.h

+2 −0
Original line number Diff line number Diff line
@@ -42,6 +42,8 @@ 


#ifndef __ASSEMBLY__



extern long shadow_stack[SHADOW_OVERFLOW_STACK_SIZE / sizeof(long)];



#include <asm/processor.h>

#include <asm/csr.h>

arch/riscv/kernel/traps.c

+2 −1
Original line number Diff line number Diff line
@@ -20,9 +20,10 @@ 


#include <asm/asm-prototypes.h>

#include <asm/bug.h>

#include <asm/csr.h>

#include <asm/processor.h>

#include <asm/ptrace.h>

#include <asm/csr.h>

#include <asm/thread_info.h>



int show_unhandled_signals = 1;