x86/nmi: Clean up register_nmi_handler() usage

Implement a cleaner and easier to maintain version for the section
warning fixes implemented in commit eeaaa96a3a21
("x86/nmi: Fix section mismatch warnings on 32-bit").

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Jan Beulich <JBeulich@suse.com>
Link: http://lkml.kernel.org/r/1340049393-17771-1-git-send-email-dzickus@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index dc580c4..c0fa356 100644 (file)
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -44,28 +44,14 @@ struct nmiaction {
        const char              *name;
 };
 
-#define register_nmi_handler(t, fn, fg, n)             \
+#define register_nmi_handler(t, fn, fg, n, init...)    \
 ({                                                     \
-       static struct nmiaction fn##_na = {             \
+       static struct nmiaction init fn##_na = {        \
                .handler = (fn),                        \
                .name = (n),                            \
                .flags = (fg),                          \
        };                                              \
-       __register_nmi_handler((t), &fn##_na);  \
-})
-
-/*
- * For special handlers that register/unregister in the
- * init section only.  This should be considered rare.
- */
-#define register_nmi_handler_initonly(t, fn, fg, n)            \
-({                                                     \
-       static struct nmiaction fn##_na __initdata = {          \
-               .handler = (fn),                        \
-               .name = (n),                            \
-               .flags = (fg),                          \
-       };                                              \
-       __register_nmi_handler((t), &fn##_na);  \
+       __register_nmi_handler((t), &fn##_na);          \
 })
 
 int __register_nmi_handler(unsigned int, struct nmiaction *);

diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index 149b8d9..6d9582e 100644 (file)
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -42,7 +42,8 @@ static int __init nmi_unk_cb(unsigned int val, struct pt_regs *regs)
 static void __init init_nmi_testsuite(void)
 {
        /* trap all the unknown NMIs we may generate */
-       register_nmi_handler_initonly(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk");
+       register_nmi_handler(NMI_UNKNOWN, nmi_unk_cb, 0, "nmi_selftest_unk",
+                       __initdata);
 }
 
 static void __init cleanup_nmi_testsuite(void)
@@ -64,8 +65,8 @@ static void __init test_nmi_ipi(struct cpumask *mask)
 {
        unsigned long timeout;
 
-       if (register_nmi_handler_initonly(NMI_LOCAL, test_nmi_ipi_callback,
-                                NMI_FLAG_FIRST, "nmi_selftest")) {
+       if (register_nmi_handler(NMI_LOCAL, test_nmi_ipi_callback,
+                                NMI_FLAG_FIRST, "nmi_selftest", __initdata)) {
                nmi_fail = FAILURE;
                return;
        }