diff options
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 13 | ||||
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 10 |
2 files changed, 18 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 1eab54bc6ee9..cd12f362b61f 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -2147,7 +2147,11 @@ void __init set_cur_cpu_spec(struct cpu_spec *s) struct cpu_spec *t = &the_cpu_spec; t = PTRRELOC(t); - *t = *s; + /* + * use memcpy() instead of *t = *s so that GCC replaces it + * by __memcpy() when KASAN is active + */ + memcpy(t, s, sizeof(*t)); *PTRRELOC(&cur_cpu_spec) = &the_cpu_spec; } @@ -2161,8 +2165,11 @@ static struct cpu_spec * __init setup_cpu_spec(unsigned long offset, t = PTRRELOC(t); old = *t; - /* Copy everything, then do fixups */ - *t = *s; + /* + * Copy everything, then do fixups. Use memcpy() instead of *t = *s + * so that GCC replaces it by __memcpy() when KASAN is active + */ + memcpy(t, s, sizeof(*t)); /* * If we are overriding a previous value derived from the real diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 7017156168e8..d3b0d543d924 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1264,8 +1264,14 @@ static void __init prom_check_platform_support(void) int prop_len = prom_getproplen(prom.chosen, "ibm,arch-vec-5-platform-support"); - /* First copy the architecture vec template */ - ibm_architecture_vec = ibm_architecture_vec_template; + /* + * First copy the architecture vec template + * + * use memcpy() instead of *vec = *vec_template so that GCC replaces it + * by __memcpy() when KASAN is active + */ + memcpy(&ibm_architecture_vec, &ibm_architecture_vec_template, + sizeof(ibm_architecture_vec)); if (prop_len > 1) { int i; |