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Date: Wed, 13 Apr 2022 07:07:48 +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: [linux-stable-rc:queue/5.4 7091/9999]
drivers/staging/comedi/drivers/comedi_isadma.c:25:17: error: implicit
declaration of function 'claim_dma_lock'
Hi Arnd,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.4
head: 9185989d84b918f49f720061cedc29c8ed039797
commit: 53a72858bcae7eaa7df8d167dbf60682d70f82a6 [7091/9999] m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch
config: m68k-randconfig-r011-20220412 (https://download.01.org/0day-ci/archive/20220413/202204130751.lUeRF1y2-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 11.2.0
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-rc.git/commit/?id=53a72858bcae7eaa7df8d167dbf60682d70f82a6
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc queue/5.4
git checkout 53a72858bcae7eaa7df8d167dbf60682d70f82a6
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/staging/comedi/drivers/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:51,
from include/linux/seqlock.h:36,
from include/linux/time.h:6,
from include/linux/stat.h:19,
from include/linux/module.h:10,
from drivers/staging/comedi/drivers/comedi_isadma.c:7:
include/linux/dma-mapping.h: In function 'dma_map_resource':
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/asm-generic/bug.h:182:32: note: in definition of macro 'WARN_ON'
182 | int __ret_warn_on = !!(condition); \
| ^~~~~~~~~
include/linux/dma-mapping.h:355:13: note: in expansion of macro 'WARN_ON_ONCE'
355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
| ^~~~~~~~~~~~
arch/m68k/include/asm/page_mm.h:170:33: note: in expansion of macro 'virt_addr_valid'
170 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
include/linux/dma-mapping.h:355:26: note: in expansion of macro 'pfn_valid'
355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
| ^~~~~~~~~
drivers/staging/comedi/drivers/comedi_isadma.c: In function 'comedi_isadma_program':
>> drivers/staging/comedi/drivers/comedi_isadma.c:25:17: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
25 | flags = claim_dma_lock();
| ^~~~~~~~~~~~~~
>> drivers/staging/comedi/drivers/comedi_isadma.c:31:9: error: implicit declaration of function 'release_dma_lock' [-Werror=implicit-function-declaration]
31 | release_dma_lock(flags);
| ^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/claim_dma_lock +25 drivers/staging/comedi/drivers/comedi_isadma.c
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 16
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 17 /**
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 18 * comedi_isadma_program - program and enable an ISA DMA transfer
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 19 * @desc: the ISA DMA cookie to program and enable
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 20 */
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 21 void comedi_isadma_program(struct comedi_isadma_desc *desc)
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 22 {
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 23 unsigned long flags;
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 24
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 @25 flags = claim_dma_lock();
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 26 clear_dma_ff(desc->chan);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 27 set_dma_mode(desc->chan, desc->mode);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 28 set_dma_addr(desc->chan, desc->hw_addr);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 29 set_dma_count(desc->chan, desc->size);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 30 enable_dma(desc->chan);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 @31 release_dma_lock(flags);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 32 }
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 33 EXPORT_SYMBOL_GPL(comedi_isadma_program);
20a1ea7d6ba184a H Hartley Sweeten 2015-01-14 34
:::::: The code at line 25 was first introduced by commit
:::::: 20a1ea7d6ba184a1f6e25e85786738003387cada staging: comedi: comedi_isadma: introduce helper module for ISA DMA
:::::: TO: H Hartley Sweeten <hsweeten@...ionengravers.com>
:::::: CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
--
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https://01.org/lkp
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