linux-kernel - [tip:x86/urgent 3/3] arch/x86//kernel/apic/vector.c:151:11: error: 'struct apic' has no member named 'vector'

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Date:   Fri, 23 Feb 2018 05:18:36 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org, tipbuild@...or.com
Subject: [tip:x86/urgent 3/3] arch/x86//kernel/apic/vector.c:151:11: error:
 'struct apic' has no member named 'vector'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/urgent
head:   f60606c4ce402963dc552c62910ffa7080b4a628
commit: f60606c4ce402963dc552c62910ffa7080b4a628 [3/3] x86/apic/vector: Handle vector release on CPU unplug correctly
config: x86_64-randconfig-x017-201807 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout f60606c4ce402963dc552c62910ffa7080b4a628
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86//kernel/apic/vector.c: In function 'apic_update_vector':
>> arch/x86//kernel/apic/vector.c:151:11: error: 'struct apic' has no member named 'vector'
     if (!apic->vector || apicd->vector == MANAGED_IRQ_SHUTDOWN_VECTOR)
              ^~

vim +151 arch/x86//kernel/apic/vector.c

   131	
   132	static void apic_update_vector(struct irq_data *irqd, unsigned int newvec,
   133				       unsigned int newcpu)
   134	{
   135		struct apic_chip_data *apicd = apic_chip_data(irqd);
   136		struct irq_desc *desc = irq_data_to_desc(irqd);
   137		bool managed = irqd_affinity_is_managed(irqd);
   138	
   139		lockdep_assert_held(&vector_lock);
   140	
   141		trace_vector_update(irqd->irq, newvec, newcpu, apicd->vector,
   142				    apicd->cpu);
   143	
   144		/*
   145		 * If there is no vector associated or if the associated vector is
   146		 * the shutdown vector, which is associated to make PCI/MSI
   147		 * shutdown mode work, then there is nothing to release. Clear out
   148		 * prev_vector for this and the offlined target case.
   149		 */
   150		apicd->prev_vector = 0;
 > 151		if (!apic->vector || apicd->vector == MANAGED_IRQ_SHUTDOWN_VECTOR)
   152			goto setnew;
   153		/*
   154		 * If the target CPU of the previous vector is online, then mark
   155		 * the vector as move in progress and store it for cleanup when the
   156		 * first interrupt on the new vector arrives. If the target CPU is
   157		 * offline then the regular release mechanism via the cleanup
   158		 * vector is not possible and the vector can be immediately freed
   159		 * in the underlying matrix allocator.
   160		 */
   161		if (cpu_online(apicd->cpu)) {
   162			apicd->move_in_progress = true;
   163			apicd->prev_vector = apicd->vector;
   164			apicd->prev_cpu = apicd->cpu;
   165		} else {
   166			irq_matrix_free(vector_matrix, apicd->cpu, apicd->vector,
   167					managed);
   168		}
   169	
   170	setnew:
   171		apicd->vector = newvec;
   172		apicd->cpu = newcpu;
   173		BUG_ON(!IS_ERR_OR_NULL(per_cpu(vector_irq, newcpu)[newvec]));
   174		per_cpu(vector_irq, newcpu)[newvec] = desc;
   175	}
   176	

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