Re: [PATCH 09/14] genirq: Implement irq_send_ipi() to be used by drivers

From: kbuild test robot
Date: Tue Nov 03 2015 - 07:07:58 EST


Hi Qais,

[auto build test WARNING on tip/irq/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

url: https://github.com/0day-ci/linux/commits/Qais-Yousef/Implement-generic-IPI-support-mechanism/20151103-192028
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

include/linux/irq.h:168: warning: No description found for parameter 'ipi_mask'
>> kernel/irq/manage.c:2103: warning: No description found for parameter 'desc'
>> kernel/irq/manage.c:2103: warning: Excess function parameter 'irq_desc' description in '__irq_desc_send_ipi'
kernel/irq/manage.c:2146: warning: No description found for parameter 'virq'
kernel/irq/manage.c:2146: warning: Excess function parameter 'irq' description in 'irq_send_ipi'
kernel/irq/handle.c:1: warning: no structured comments found
--
lib/crc32.c:148: warning: No description found for parameter 'tab)[256]'
lib/crc32.c:148: warning: Excess function parameter 'tab' description in 'crc32_le_generic'
lib/crc32.c:293: warning: No description found for parameter 'tab)[256]'
lib/crc32.c:293: warning: Excess function parameter 'tab' description in 'crc32_be_generic'
lib/crc32.c:1: warning: no structured comments found
>> kernel/irq/manage.c:2103: warning: No description found for parameter 'desc'
>> kernel/irq/manage.c:2103: warning: Excess function parameter 'irq_desc' description in '__irq_desc_send_ipi'
kernel/irq/manage.c:2146: warning: No description found for parameter 'virq'
kernel/irq/manage.c:2146: warning: Excess function parameter 'irq' description in 'irq_send_ipi'
block/blk-core.c:1549: warning: No description found for parameter 'same_queue_rq'
block/blk-core.c:1549: warning: No description found for parameter 'same_queue_rq'

vim +/desc +2103 kernel/irq/manage.c

2087 return 0;
2088 }
2089
2090 /**
2091 * __irq_desc_send_ipi - send an IPI to target CPU(s)
2092 * @irq_desc: pointer to irq_desc of the IRQ
2093 * @dest: dest CPU(s), must be the same or a subset of the mask passed to
2094 * irq_reserve_ipi()
2095 *
2096 * Sends an IPI to all cpus in dest mask.
2097 * This function is meant to be used from arch code to save the need to do
2098 * desc lookup that happens in the generic irq_send_ipi().
2099 *
2100 * Returns zero on success and negative error number on failure.
2101 */
2102 int __irq_desc_send_ipi(struct irq_desc *desc, const struct ipi_mask *dest)
> 2103 {
2104 struct irq_data *data = irq_desc_get_irq_data(desc);
2105 struct irq_chip *chip = irq_data_get_irq_chip(data);
2106
2107 if (!chip || !chip->irq_send_ipi)
2108 return -EINVAL;
2109
2110 if (dest->nbits > data->common->ipi_mask->nbits)
2111 return -EINVAL;

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