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Viewing changes to drivers/xen/events.c

  • Committer: Package Import Robot
  • Author(s): Paolo Pisati, Paolo Pisati
  • Date: 2013-07-11 18:35:20 UTC
  • Revision ID: package-import@ubuntu.com-20130711183520-htnf1x4y5r11hndr
Tags: 3.5.0-229.42
https://launchpad.net/bugs/1199276
* Release Tracking Bug
  - LP: #1199276

[ Paolo Pisati ]

* [Config] CONFIG_ATH9K_LEGACY_RATE_CONTROL is not set

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Lines of Context:
drivers/xen/events.c
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{
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        int start_word_idx, start_bit_idx;
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        int word_idx, bit_idx;
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        int i;
 
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        int i, irq;
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        int cpu = get_cpu();
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        struct shared_info *s = HYPERVISOR_shared_info;
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        struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu);
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        do {
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                unsigned long pending_words;
 
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                unsigned long pending_bits;
 
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                struct irq_desc *desc;
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                vcpu_info->evtchn_upcall_pending = 0;
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                /* Clear master flag /before/ clearing selector flag. */
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                wmb();
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#endif
 
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                if ((irq = per_cpu(virq_to_irq, cpu)[VIRQ_TIMER]) != -1) {
 
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                        int evtchn = evtchn_from_irq(irq);
 
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                        word_idx = evtchn / BITS_PER_LONG;
 
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                        pending_bits = evtchn % BITS_PER_LONG;
 
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                        if (active_evtchns(cpu, s, word_idx) & (1ULL << pending_bits)) {
 
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                                desc = irq_to_desc(irq);
 
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                                if (desc)
 
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                                        generic_handle_irq_desc(irq, desc);
 
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                        }
 
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                }
 
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                pending_words = xchg(&vcpu_info->evtchn_pending_sel, 0);
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                start_word_idx = __this_cpu_read(current_word_idx);
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                word_idx = start_word_idx;
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                for (i = 0; pending_words != 0; i++) {
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                        unsigned long pending_bits;
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                        unsigned long words;
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                        words = MASK_LSBS(pending_words, word_idx);
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                        do {
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                                unsigned long bits;
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                                int port, irq;
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                                struct irq_desc *desc;
 
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                                int port;
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                                bits = MASK_LSBS(pending_bits, bit_idx);
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