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Date:   Fri, 8 Jul 2022 19:09:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [stable:linux-5.10.y 644/6933] drivers/scsi/BusLogic.c:2006:47:
 error: 'DMA_MODE_CASCADE' undeclared; did you mean 'DMA_MODE_READ'?

Hi Arnd,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.10.y
head:   7208d1236f72085a3290c41463ee3ee246d8afa5
commit: 87ae522e467e17a13b796e2cb595f9c3943e4d5e [644/6933] m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch
config: m68k-randconfig-r003-20220703 (https://download.01.org/0day-ci/archive/20220708/202207081920.7UbEitt3-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 11.3.0
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=87ae522e467e17a13b796e2cb595f9c3943e4d5e
        git remote add stable https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
        git fetch --no-tags stable linux-5.10.y
        git checkout 87ae522e467e17a13b796e2cb595f9c3943e4d5e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:11,
                    from include/linux/list.h:9,
                    from include/linux/module.h:12,
                    from drivers/scsi/BusLogic.c:25:
   include/linux/scatterlist.h: In function 'sg_set_buf':
   arch/m68k/include/asm/page_mm.h:169:50: warning: ordered comparison of pointer with null pointer [-Wextra]
     169 | #define virt_addr_valid(kaddr)  ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
         |                                                  ^~
   include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
      78 | # define unlikely(x)    __builtin_expect(!!(x), 0)
         |                                             ^
   include/linux/scatterlist.h:143:9: note: in expansion of macro 'BUG_ON'
     143 |         BUG_ON(!virt_addr_valid(buf));
         |         ^~~~~~
   include/linux/scatterlist.h:143:17: note: in expansion of macro 'virt_addr_valid'
     143 |         BUG_ON(!virt_addr_valid(buf));
         |                 ^~~~~~~~~~~~~~~
   In file included from drivers/scsi/BusLogic.c:51:
   drivers/scsi/FlashPoint.c: In function 'FlashPoint_AbortCCB':
   drivers/scsi/FlashPoint.c:1618:23: warning: variable 'TID' set but not used [-Wunused-but-set-variable]
    1618 |         unsigned char TID;
         |                       ^~~
   drivers/scsi/BusLogic.c: In function 'blogic_rdconfig':
   drivers/scsi/BusLogic.c:1735:46: warning: ordered comparison of pointer with null pointer [-Wextra]
    1735 |                         (void *) high_memory > (void *) MAX_DMA_ADDRESS)
         |                                              ^
   drivers/scsi/BusLogic.c:1748:46: warning: ordered comparison of pointer with null pointer [-Wextra]
    1748 |                         (void *) high_memory > (void *) MAX_DMA_ADDRESS)
         |                                              ^
   drivers/scsi/BusLogic.c: In function 'blogic_getres':
>> drivers/scsi/BusLogic.c:2006:47: error: 'DMA_MODE_CASCADE' undeclared (first use in this function); did you mean 'DMA_MODE_READ'?
    2006 |                 set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
         |                                               ^~~~~~~~~~~~~~~~
         |                                               DMA_MODE_READ
   drivers/scsi/BusLogic.c:2006:47: note: each undeclared identifier is reported only once for each function it appears in
   drivers/scsi/BusLogic.c: In function 'blogic_msg':
   drivers/scsi/BusLogic.c:3591:9: warning: function 'blogic_msg' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format]
    3591 |         len = vsprintf(buf, fmt, args);
         |         ^~~


vim +2006 drivers/scsi/BusLogic.c

^1da177e4c3f41 Linus Torvalds 2005-04-16  1980  
839cb99e8f7483 Khalid Aziz    2013-05-16  1981  static bool __init blogic_getres(struct blogic_adapter *adapter)
^1da177e4c3f41 Linus Torvalds 2005-04-16  1982  {
839cb99e8f7483 Khalid Aziz    2013-05-16  1983  	if (adapter->irq_ch == 0) {
839cb99e8f7483 Khalid Aziz    2013-05-16  1984  		blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
839cb99e8f7483 Khalid Aziz    2013-05-16  1985  				adapter);
^1da177e4c3f41 Linus Torvalds 2005-04-16  1986  		return false;
^1da177e4c3f41 Linus Torvalds 2005-04-16  1987  	}
^1da177e4c3f41 Linus Torvalds 2005-04-16  1988  	/*
^1da177e4c3f41 Linus Torvalds 2005-04-16  1989  	   Acquire shared access to the IRQ Channel.
^1da177e4c3f41 Linus Torvalds 2005-04-16  1990  	 */
839cb99e8f7483 Khalid Aziz    2013-05-16  1991  	if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
839cb99e8f7483 Khalid Aziz    2013-05-16  1992  				adapter->full_model, adapter) < 0) {
839cb99e8f7483 Khalid Aziz    2013-05-16  1993  		blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
839cb99e8f7483 Khalid Aziz    2013-05-16  1994  				adapter, adapter->irq_ch);
^1da177e4c3f41 Linus Torvalds 2005-04-16  1995  		return false;
^1da177e4c3f41 Linus Torvalds 2005-04-16  1996  	}
839cb99e8f7483 Khalid Aziz    2013-05-16  1997  	adapter->irq_acquired = true;
^1da177e4c3f41 Linus Torvalds 2005-04-16  1998  	/*
^1da177e4c3f41 Linus Torvalds 2005-04-16  1999  	   Acquire exclusive access to the DMA Channel.
^1da177e4c3f41 Linus Torvalds 2005-04-16  2000  	 */
839cb99e8f7483 Khalid Aziz    2013-05-16  2001  	if (adapter->dma_ch > 0) {
839cb99e8f7483 Khalid Aziz    2013-05-16  2002  		if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
839cb99e8f7483 Khalid Aziz    2013-05-16  2003  			blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
^1da177e4c3f41 Linus Torvalds 2005-04-16  2004  			return false;
^1da177e4c3f41 Linus Torvalds 2005-04-16  2005  		}
839cb99e8f7483 Khalid Aziz    2013-05-16 @2006  		set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
839cb99e8f7483 Khalid Aziz    2013-05-16  2007  		enable_dma(adapter->dma_ch);
839cb99e8f7483 Khalid Aziz    2013-05-16  2008  		adapter->dma_chan_acquired = true;
^1da177e4c3f41 Linus Torvalds 2005-04-16  2009  	}
^1da177e4c3f41 Linus Torvalds 2005-04-16  2010  	/*
^1da177e4c3f41 Linus Torvalds 2005-04-16  2011  	   Indicate the System Resource Acquisition completed successfully,
^1da177e4c3f41 Linus Torvalds 2005-04-16  2012  	 */
^1da177e4c3f41 Linus Torvalds 2005-04-16  2013  	return true;
^1da177e4c3f41 Linus Torvalds 2005-04-16  2014  }
^1da177e4c3f41 Linus Torvalds 2005-04-16  2015  

:::::: The code at line 2006 was first introduced by commit
:::::: 839cb99e8f748391059d10388c8aea48a88c142c [SCSI] BusLogic: Fix style issues

:::::: TO: Khalid Aziz <khalid.aziz@...cle.com>
:::::: CC: James Bottomley <JBottomley@...allels.com>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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