Re: [PATCH 1/5] IA64-IRQ: Use kmalloc_array() in sn_irq_lh_init()

From: kbuild test robot
Date: Fri Aug 26 2016 - 16:24:18 EST


Hi Markus,

[auto build test ERROR on ia64/next]
[also build test ERROR on v4.8-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url: https://github.com/0day-ci/linux/commits/SF-Markus-Elfring/IA64-Fine-tuning-for-some-function-implementations/20160827-021651
base: https://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git next
config: ia64-allnoconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 4.9.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64

All errors (new ones prefixed by >>):

arch/ia64/sn/kernel/irq.c: In function 'sn_irq_lh_init':
>> arch/ia64/sn/kernel/irq.c:482:18: error: incompatible type for argument 1 of 'kmalloc'
sn_irq_lh[i] = kmalloc(*sn_irq_lh[i], GFP_KERNEL);
^
In file included from arch/ia64/sn/kernel/irq.c:15:0:
include/linux/slab.h:466:30: note: expected 'size_t' but argument is of type 'struct list_head'
static __always_inline void *kmalloc(size_t size, gfp_t flags)
^

vim +/kmalloc +482 arch/ia64/sn/kernel/irq.c

476
477 sn_irq_lh = kmalloc_array(NR_IRQS, sizeof(*sn_irq_lh), GFP_KERNEL);
478 if (!sn_irq_lh)
479 panic("SN PCI INIT: Failed to allocate memory for PCI init\n");
480
481 for (i = 0; i < NR_IRQS; i++) {
> 482 sn_irq_lh[i] = kmalloc(*sn_irq_lh[i], GFP_KERNEL);
483 if (!sn_irq_lh[i])
484 panic("SN PCI INIT: Failed IRQ memory allocation\n");
485

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