Merge tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (3913d00a) · Commits · 戴 / test

Pull irq updates from Thomas Gleixner: "This is the second attempt after the first one failed miserably and got zapped to unblock the rest of the interrupt related patches. A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy accesses, inefficient and disfunctional code. The goal is to remove the export of irq_to_desc() to prevent these things from creeping up again" * tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits) genirq: Restrict export of irq_to_desc() xen/events: Implement irq distribution xen/events: Reduce irq_info:: Spurious_cnt storage size xen/events: Only force affinity mask for percpu interrupts xen/events: Use immediate affinity setting xen/events: Remove disfunct affinity spreading xen/events: Remove unused bind_evtchn_to_irq_lateeoi() net/mlx5: Use effective interrupt affinity net/mlx5: Replace irq_to_desc() abuse net/mlx4: Use effective interrupt affinity net/mlx4: Replace irq_to_desc() abuse PCI: mobiveil: Use irq_data_get_irq_chip_data() PCI: xilinx-nwl: Use irq_data_get_irq_chip_data() NTB/msi: Use irq_has_action() mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc pinctrl: nomadik: Use irq_has_action() drm/i915/pmu: Replace open coded kstat_irqs() copy drm/i915/lpe_audio: Remove pointless irq_to_desc() usage s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt() parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts() ...

arch/alpha/kernel/sys_jensen.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -7,7 +7,7 @@
		*
		* Code supporting the Jensen.
		*/

		#include <linux/interrupt.h>
		#include <linux/kernel.h>
		#include <linux/types.h>
		#include <linux/mm.h>

arch/arm/kernel/smp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -549,7 +549,7 @@ void show_ipi_list(struct seq_file *p, int prec)
		seq_printf(p, "%*s%u: ", prec - 1, "IPI", i);

		for_each_online_cpu(cpu)
		seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu));
		seq_printf(p, "%10u ", irq_desc_kstat_cpu(ipi_desc[i], cpu));

		seq_printf(p, " %s\n", ipi_types[i]);
		}

arch/arm64/kernel/smp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -811,7 +811,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
		seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i,
		prec >= 4 ? " " : "");
		for_each_online_cpu(cpu)
		seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu));
		seq_printf(p, "%10u ", irq_desc_kstat_cpu(ipi_desc[i], cpu));
		seq_printf(p, " %s\n", ipi_types[i]);
		}

arch/parisc/kernel/irq.c

+2 −5

Original line number	Diff line number	Diff line
		@@ -216,12 +216,9 @@ int show_interrupts(struct seq_file p, void v)
		if (!action)
		goto skip;
		seq_printf(p, "%3d: ", i);
		#ifdef CONFIG_SMP

		for_each_online_cpu(j)
		seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
		#else
		seq_printf(p, "%10u ", kstat_irqs(i));
		#endif
		seq_printf(p, "%10u ", irq_desc_kstat_cpu(desc, j));

		seq_printf(p, " %14s", irq_desc_get_chip(desc)->name);
		#ifndef PARISC_IRQ_CR16_COUNTS

arch/s390/kernel/irq.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -124,7 +124,7 @@ static void show_msi_interrupt(struct seq_file *p, int irq)
		raw_spin_lock_irqsave(&desc->lock, flags);
		seq_printf(p, "%3d: ", irq);
		for_each_online_cpu(cpu)
		seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu));
		seq_printf(p, "%10u ", irq_desc_kstat_cpu(desc, cpu));

		if (desc->irq_data.chip)
		seq_printf(p, " %8s", desc->irq_data.chip->name);

Admin message