[linux-nvme:nvme-5.14 27/28] drivers/nvme/host/pci.c:539:7: error: implicit declaration of function 'nvme_ctrl_sgl_supported'

[Chaitanya Kulkarni]

> On Jun 8, 2021, at 2:30 PM, kernel test robot <lkp at intel.com> wrote:
> 
> tree:   git://git.infradead.org/nvme.git nvme-5.14
> head:   b0386eb167134d958f1876a1a7e39e113385c516
> commit: a854c5eb4e959f0dfc6e1c22b51128ac68bc051c [27/28] nvme-pci: use helper for ctrl sgl check
> config: sparc-randconfig-r024-20210608 (attached as .config)
> compiler: sparc-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>        chmod +x ~/bin/make.cross
>        git remote add linux-nvme git://git.infradead.org/nvme.git
>        git fetch --no-tags linux-nvme nvme-5.14
>        git checkout a854c5eb4e959f0dfc6e1c22b51128ac68bc051c
>        # save the attached .config to linux build tree
>        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp at intel.com>
> 
> All errors (new ones prefixed by >>):
> 
>   drivers/nvme/host/pci.c: In function 'nvme_pci_use_sgls':
>>> drivers/nvme/host/pci.c:539:7: error: implicit declaration of function 'nvme_ctrl_sgl_supported' [-Werror=implicit-function-declaration]
>     539 |  if (!nvme_ctrl_sgl_supported(&dev->ctrl))
>         |       ^~~~~~~~~~~~~~~~~~~~~~~
>   cc1: some warnings being treated as errors
> 
> 
> vim +/nvme_ctrl_sgl_supported +539 drivers/nvme/host/pci.c
> 
>   530    
>   531    static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
>   532    {
>   533        struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
>   534        int nseg = blk_rq_nr_phys_segments(req);
>   535        unsigned int avg_seg_size;
>   536    
>   537        avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req), nseg);
>   538    
>> 539        if (!nvme_ctrl_sgl_supported(&dev->ctrl))
>   540            return false;
>   541        if (!iod->nvmeq->qid)
>   542            return false;
>   543        if (!sgl_threshold || avg_seg_size < sgl_threshold)
>   544            return false;
>   545        return true;
>   546    }
>   547    
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
> <.config.gz>


The patches to fix this are already sent.