Re: [PATCH 1/3] lightnvm: make core.c explicitly non-modular

[Paul Gortmaker]

[Re: [PATCH 1/3] lightnvm: make core.c explicitly non-modular] On 30/10/2016 (Sun 06:01) kbuild test robot wrote:

> Hi Paul,
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.9-rc3 next-20161028]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

As per the 0/3 mail, these commits are specific to Greg's char-misc
tree, and it was known they would fail on current "master".

> [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]

Does the above apply to _any_ tree on kernel.org?  Or just commits
merged into mainline already?  Since the base here is only in Greg's
repo and maybe also in some linux-next trees.

Thanks,
Paul.
--

> [Check https://git-scm.com/docs/git-format-patch for more information]
> 
> url:    https://github.com/0day-ci/linux/commits/Paul-Gortmaker/lightnvm-make-core-c-explicitly-non-modular/20161030-044459
> config: i386-randconfig-x073-201644 (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> All error/warnings (new ones prefixed by >>):
> 
> >> drivers/lightnvm/core.c:1169:1: warning: data definition has no type or storage class
>     builtin_misc_device(_nvm_misc);
>     ^~~~~~~~~~~~~~~~~~~
> >> drivers/lightnvm/core.c:1169:1: error: type defaults to 'int' in declaration of 'builtin_misc_device' [-Werror=implicit-int]
> >> drivers/lightnvm/core.c:1169:1: warning: parameter names (without types) in function declaration
> >> drivers/lightnvm/core.c:1163:26: warning: '_nvm_misc' defined but not used [-Wunused-variable]
>     static struct miscdevice _nvm_misc = {
>                              ^~~~~~~~~
>    Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size
>    Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:fls
>    Cyclomatic Complexity 1 include/linux/log2.h:__ilog2_u32
>    Cyclomatic Complexity 1 include/linux/list.h:__list_add
>    Cyclomatic Complexity 1 include/linux/list.h:list_add
>    Cyclomatic Complexity 1 include/linux/list.h:__list_del
>    Cyclomatic Complexity 1 include/linux/list.h:list_del
>    Cyclomatic Complexity 1 include/asm-generic/getorder.h:__get_order
>    Cyclomatic Complexity 1 include/linux/spinlock.h:spinlock_check
>    Cyclomatic Complexity 1 include/linux/slab.h:__kmalloc_node
>    Cyclomatic Complexity 1 include/linux/slab.h:kmalloc_order_trace
>    Cyclomatic Complexity 67 include/linux/slab.h:kmalloc_large
>    Cyclomatic Complexity 3 include/linux/slab.h:kmalloc
>    Cyclomatic Complexity 1 include/linux/slab.h:kmalloc_node
>    Cyclomatic Complexity 1 include/linux/slab.h:kzalloc_node
>    Cyclomatic Complexity 1 include/linux/lightnvm.h:generic_to_dev_addr
>    Cyclomatic Complexity 1 include/linux/lightnvm.h:dev_to_generic_addr
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_dev_dma_alloc
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_dev_dma_free
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_get_blk
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_put_blk
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_mark_blk
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_submit_io
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_erase_blk
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_addr_to_generic_mode
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_generic_to_addr_mode
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_free_rqd_ppalist
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_end_io
>    Cyclomatic Complexity 5 drivers/lightnvm/core.c:nvm_bb_tbl_fold
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_get_bb_tbl
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_free_mgr
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_alloc_dev
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_find_mgr_type
>    Cyclomatic Complexity 5 drivers/lightnvm/core.c:nvm_find_target_type
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_register_tgt_type
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_unregister_tgt_type
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_unregister_mgr
>    Cyclomatic Complexity 3 include/linux/err.h:IS_ERR_OR_NULL
>    Cyclomatic Complexity 8 drivers/lightnvm/core.c:nvm_init_mgr
>    Cyclomatic Complexity 4 drivers/lightnvm/core.c:nvm_register_mgr
>    Cyclomatic Complexity 9 drivers/lightnvm/core.c:nvm_set_rqd_ppalist
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_erase_ppa
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_end_io_sync
>    Cyclomatic Complexity 1 include/linux/completion.h:init_completion
>    Cyclomatic Complexity 5 drivers/lightnvm/core.c:__nvm_submit_ppa
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_submit_ppa_list
>    Cyclomatic Complexity 2 drivers/lightnvm/core.c:nvm_submit_ppa
>    Cyclomatic Complexity 5 include/linux/slab.h:kmalloc_array
>    Cyclomatic Complexity 1 include/linux/slab.h:kcalloc
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_init_slc_tbl
>    Cyclomatic Complexity 5 drivers/lightnvm/core.c:nvm_init_mlc_tbl
>    Cyclomatic Complexity 9 drivers/lightnvm/core.c:nvm_core_init
>    Cyclomatic Complexity 7 drivers/lightnvm/core.c:nvm_init
>    Cyclomatic Complexity 10 drivers/lightnvm/core.c:nvm_register
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_exit
>    Cyclomatic Complexity 1 drivers/lightnvm/core.c:nvm_unregister
>    Cyclomatic Complexity 3 drivers/lightnvm/core.c:nvm_free
>    cc1: some warnings being treated as errors
> 
> vim +1169 drivers/lightnvm/core.c
> 
>   1157		.open = nonseekable_open,
>   1158		.unlocked_ioctl = nvm_ctl_ioctl,
>   1159		.owner = THIS_MODULE,
>   1160		.llseek  = noop_llseek,
>   1161	};
>   1162	
> > 1163	static struct miscdevice _nvm_misc = {
>   1164		.minor		= MISC_DYNAMIC_MINOR,
>   1165		.name		= "lightnvm",
>   1166		.nodename	= "lightnvm/control",
>   1167		.fops		= &_ctl_fops,
>   1168	};
> > 1169	builtin_misc_device(_nvm_misc);
> 
> ---
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