x86: move a few device initialization objects into .devinit.rodata

Impact: debuggability and micro-optimization

Putting whatever is possible into the (final) .rodata section increases
the likelihood of catching memory corruption bugs early, and reduces
false cache line sharing.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <49B909A5.76E4.0078.0@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 82d22fc601ae3acc0ebb83df9d116e95ec66ea96..8c362b96b644953f018b2001541714dbbfab0c29 100644 (file)
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -90,7 +90,7 @@ static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d)
        return 0;
 }
 
-static struct dmi_system_id can_skip_pciprobe_dmi_table[] __devinitdata = {
+static const struct dmi_system_id can_skip_pciprobe_dmi_table[] __devinitconst = {
 /*
  * Systems where PCI IO resource ISA alignment can be skipped
  * when the ISA enable bit in the bridge control is not set
@@ -183,7 +183,7 @@ static int __devinit assign_all_busses(const struct dmi_system_id *d)
 }
 #endif
 
-static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = {
+static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = {
 #ifdef __i386__
 /*
  * Laptops which need pci=assign-busses to see Cardbus cards

diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 7d388d5cf54852136da06d0ca08b04c646fc7199..9c49919e4d1c08d6d098aa34feb8cd46fb97e623 100644 (file)
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -356,7 +356,7 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video);
 
 
-static struct dmi_system_id __devinitdata msi_k8t_dmi_table[] = {
+static const struct dmi_system_id __devinitconst msi_k8t_dmi_table[] = {
        {
                .ident = "MSI-K8T-Neo2Fir",
                .matches = {
@@ -413,7 +413,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
  */
 static u16 toshiba_line_size;
 
-static struct dmi_system_id __devinitdata toshiba_ohci1394_dmi_table[] = {
+static const struct dmi_system_id __devinitconst toshiba_ohci1394_dmi_table[] = {
        {
                .ident = "Toshiba PS5 based laptop",
                .matches = {