module: Don't report discarded init pages as kernel text.

Current code could cause a bug in symbol_put_addr() if an arch used
kmalloc module text: we might think the symbol belongs to the core
kernel.

The downside is that this might make backtraces through (discarded)
init functions harder to read on some archs, but we already have that
issue for modules and noone has complained.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/kernel/extable.c b/kernel/extable.c
index 7fe2628553172eadc0d49a3cbaf9d779b80b5a7c..a26cb2e170237d849c9f87038a6def48ee948dd6 100644 (file)
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -46,7 +46,8 @@ int core_kernel_text(unsigned long addr)
            addr <= (unsigned long)_etext)
                return 1;
 
-       if (addr >= (unsigned long)_sinittext &&
+       if (system_state == SYSTEM_BOOTING &&
+           addr >= (unsigned long)_sinittext &&
            addr <= (unsigned long)_einittext)
                return 1;
        return 0;