[PATCH] x86: fix compiling with alpha

[PATCH] x86: fix compiling with alpha

[Yinghai Lu]

Impact: fix

can not use irq_desc in stat.c for some arch

Signed-off-by: Yinghai Lu <yinghai@kernel.orgg>

---
 fs/proc/stat.c        |   20 +++++++++++++-------
 include/linux/irq.h   |    9 ---------
 include/linux/irqnr.h |   19 ++++++++++++++++---
 3 files changed, 29 insertions(+), 19 deletions(-)

Index: linux-2.6/fs/proc/stat.c
===================================================================
--- linux-2.6.orig/fs/proc/stat.c
+++ linux-2.6/fs/proc/stat.c
@@ -45,9 +45,12 @@ static int show_stat(struct seq_file *p,
 		softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
 		steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
 		guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
-		for_each_irq_desc(j, desc) {
+		for_each_irq_nr(j) {
+#ifdef CONFIG_SPARSE_IRQ
+			desc = irq_to_desc(j);
 			if (!desc)
 				continue;
+#endif
 			sum += kstat_irqs_cpu(j, i);
 		}
 		sum += arch_irq_stat_cpu(i);
@@ -92,14 +95,17 @@ static int show_stat(struct seq_file *p,
 	seq_printf(p, "intr %llu", (unsigned long long)sum);
 
 	/* sum again ? it could be updated? */
-	for (j = 0; j < NR_IRQS; j++) {
-		desc = irq_to_desc(j);
+	for_each_irq_nr(j) {
 		per_irq_sum = 0;
-
-		if (desc) {
-			for_each_possible_cpu(i)
-				per_irq_sum += kstat_irqs_cpu(j, i);
+#ifdef CONFIG_SPARSE_IRQ
+		desc = irq_to_desc(j);
+		if (!desc) {
+			seq_printf(p, " %u", per_irq_sum);
+			continue;
 		}
+#endif
+		for_each_possible_cpu(i)
+			per_irq_sum += kstat_irqs_cpu(j, i);
 
 		seq_printf(p, " %u", per_irq_sum);
 	}
Index: linux-2.6/include/linux/irq.h
===================================================================
--- linux-2.6.orig/include/linux/irq.h
+++ linux-2.6/include/linux/irq.h
@@ -198,7 +198,6 @@ extern void arch_init_copy_chip_data(str
 extern void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc);
 
 #ifndef CONFIG_SPARSE_IRQ
-
 extern struct irq_desc irq_desc[NR_IRQS];
 
 static inline struct irq_desc *irq_to_desc(unsigned int irq)
@@ -210,14 +209,6 @@ static inline struct irq_desc *irq_to_de
 	return irq_to_desc(irq);
 }
 
-#ifdef CONFIG_GENERIC_HARDIRQS
-# define for_each_irq_desc(irq, desc)		\
-	for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
-# define for_each_irq_desc_reverse(irq, desc)                          \
-	for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1);        \
-	    irq >= 0; irq--, desc--)
-#endif
-
 #else
 
 extern struct irq_desc *irq_to_desc(unsigned int irq);
Index: linux-2.6/include/linux/irqnr.h
===================================================================
--- linux-2.6.orig/include/linux/irqnr.h
+++ linux-2.6/include/linux/irqnr.h
@@ -8,9 +8,22 @@
 # define for_each_irq_desc(irq, desc)		\
 	for (irq = 0; irq < nr_irqs; irq++)
 
-static inline early_sparse_irq_init(void)
-{
-}
+# define for_each_irq_desc_reverse(irq, desc)                          \
+	for (irq = nr_irqs - 1; irq >= 0; irq--)
+#else
+#ifndef CONFIG_SPARSE_IRQ
+
+struct irq_desc;
+extern int nr_irqs;
+# define for_each_irq_desc(irq, desc)		\
+	for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
+# define for_each_irq_desc_reverse(irq, desc)                          \
+	for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1);        \
+	    irq >= 0; irq--, desc--)
 #endif
+#endif
+
+#define for_each_irq_nr(irq)                   \
+       for (irq = 0; irq < nr_irqs; irq++)
 
 #endif

Re: [PATCH] x86: fix compiling with alpha

[Ingo Molnar]

* Yinghai Lu <yinghai@kernel.org> wrote:

> Impact: fix
> 
> can not use irq_desc in stat.c for some arch
> 
> Signed-off-by: Yinghai Lu <yinghai@kernel.orgg>
> 
> ---
>  fs/proc/stat.c        |   20 +++++++++++++-------
>  include/linux/irq.h   |    9 ---------
>  include/linux/irqnr.h |   19 ++++++++++++++++---
>  3 files changed, 29 insertions(+), 19 deletions(-)

applied to tip/irq/sparseirq, thanks!

	Ingo

[PATCH] sparseirq: fix !SMP building #2

[Yinghai Lu]

Impact: fix compiling

make intr_remapping.c to include smp.h, so could use boot_cpu_id there

also remove old change that disabling sparseirq with !SMP

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

---
 arch/x86/Kconfig             |    2 +-
 drivers/pci/intr_remapping.c |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6/drivers/pci/intr_remapping.c
===================================================================
--- linux-2.6.orig/drivers/pci/intr_remapping.c
+++ linux-2.6/drivers/pci/intr_remapping.c
@@ -5,6 +5,7 @@
 #include <linux/pci.h>
 #include <linux/irq.h>
 #include <asm/io_apic.h>
+#include <asm/smp.h>
 #include <linux/intel-iommu.h>
 #include "intr_remapping.h"
 
Index: linux-2.6/arch/x86/Kconfig
===================================================================
--- linux-2.6.orig/arch/x86/Kconfig
+++ linux-2.6/arch/x86/Kconfig
@@ -245,7 +245,7 @@ config X86_HAS_BOOT_CPU_ID
 
 config SPARSE_IRQ
 	bool "Support sparse irq numbering"
-	depends on (PCI_MSI || HT_IRQ) && SMP
+	depends on PCI_MSI || HT_IRQ
 	default y
 	help
 	  This enables support for sparse irq, esp for msi/msi-x. You may need