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

[kernel test robot <lkp@intel.com>]

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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: powerpc-randconfig-r013-20210608 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d32cc150feb72f315a5bbd34f92e7beca21a50da)
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
        # install powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        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=clang make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from drivers/nvme/host/pci.c:7:
   In file included from include/linux/acpi.h:13:
   In file included from include/linux/irqdomain.h:35:
   In file included from include/linux/of.h:15:
   In file included from include/linux/bitops.h:32:
   In file included from arch/powerpc/include/asm/bitops.h:62:
   arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
   #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
           ^
   <built-in>:308:9: note: previous definition is here
   #define __lwsync __builtin_ppc_lwsync
           ^
>> drivers/nvme/host/pci.c:539:7: error: implicit declaration of function 'nvme_ctrl_sgl_supported' [-Werror,-Wimplicit-function-declaration]
           if (!nvme_ctrl_sgl_supported(&dev->ctrl))
                ^
   drivers/nvme/host/pci.c:858:8: error: implicit declaration of function 'nvme_ctrl_sgl_supported' [-Werror,-Wimplicit-function-declaration]
                               nvme_ctrl_sgl_supported(&dev->ctrl))
                               ^
   1 warning and 2 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HOTPLUG_CPU
   Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE
   Selected by
   - PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP


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

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