From 670431eaacbfa30be59f4ea027a2d9662ddf2bff Mon Sep 17 00:00:00 2001 From: Jinbum Park Date: Tue, 12 Dec 2017 01:20:51 +0100 Subject: ARM: 8733/1: hw_breakpoint: Mark variables as __ro_after_init core_num_brps, core_num_wrps, debug_arch, has_ossr, max_watchpoint_len are setup once while init stage, and never changed after that. so it is good candidate for __ro_after_init. Reviewed-by: Kees Cook Signed-off-by: Jinbum Park Signed-off-by: Russell King --- arch/arm/kernel/hw_breakpoint.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index af2a7f1e3103..629e25152c0d 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -44,17 +44,17 @@ static DEFINE_PER_CPU(struct perf_event *, bp_on_reg[ARM_MAX_BRP]); static DEFINE_PER_CPU(struct perf_event *, wp_on_reg[ARM_MAX_WRP]); /* Number of BRP/WRP registers on this CPU. */ -static int core_num_brps; -static int core_num_wrps; +static int core_num_brps __ro_after_init; +static int core_num_wrps __ro_after_init; /* Debug architecture version. */ -static u8 debug_arch; +static u8 debug_arch __ro_after_init; /* Does debug architecture support OS Save and Restore? */ -static bool has_ossr; +static bool has_ossr __ro_after_init; /* Maximum supported watchpoint length. */ -static u8 max_watchpoint_len; +static u8 max_watchpoint_len __ro_after_init; #define READ_WB_REG_CASE(OP2, M, VAL) \ case ((OP2 << 4) + M): \ -- cgit v1.2.3