From f419e6f63c5afea00d7c17ebf54f2d265f5c4d7e Mon Sep 17 00:00:00 2001 From: Zhigang Lu Date: Wed, 30 Sep 2015 09:53:47 +0800 Subject: tile: define a macro ktext_writable_addr to get writable kernel text address It is used by kgdb, ftrace, kprobe and jump label, so we factor this out into a helper routine. Reviewed-by: Chris Metcalf Signed-off-by: Zhigang Lu Signed-off-by: Chris Metcalf --- arch/tile/kernel/ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/tile/kernel/ftrace.c') diff --git a/arch/tile/kernel/ftrace.c b/arch/tile/kernel/ftrace.c index 0c0996175b1e..4180ccdf9cd0 100644 --- a/arch/tile/kernel/ftrace.c +++ b/arch/tile/kernel/ftrace.c @@ -117,7 +117,7 @@ static int ftrace_modify_code(unsigned long pc, unsigned long old, return -EINVAL; /* Operate on writable kernel text mapping. */ - pc_wr = pc - MEM_SV_START + PAGE_OFFSET; + pc_wr = ktext_writable_addr(pc); if (probe_kernel_write((void *)pc_wr, &new, MCOUNT_INSN_SIZE)) return -EPERM; -- cgit v1.2.3