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Date: Thu, 21 Apr 2022 16:09:54 +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 644/5321]
drivers/staging/comedi/drivers/comedi_isadma.c:25:17: error: implicit
declaration of function 'claim_dma_lock'
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: 1052f9bce62982023737a95b7ff1ad26a5149af6
commit: 87ae522e467e17a13b796e2cb595f9c3943e4d5e [644/5321] m68knommu: only set CONFIG_ISA_DMA_API for ColdFire sub-arch
config: m68k-randconfig-r035-20220420 (https://download.01.org/0day-ci/archive/20220421/202204211543.9kdHTsCb-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.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-11.2.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash
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 include/linux/kernel.h:11,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/staging/comedi/drivers/comedi_isadma.c:7:
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));
| ^~~~~~~~~~~~~~~
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'; did you mean 'release_task'? [-Werror=implicit-function-declaration]
31 | release_dma_lock(flags);
| ^~~~~~~~~~~~~~~~
| release_task
cc1: some warnings being treated as errors
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES
Depends on DISCONTIGMEM || NUMA
Selected by
- SINGLE_MEMORY_CHUNK && MMU
vim +/claim_dma_lock +25 drivers/staging/comedi/drivers/comedi_isadma.c
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 16
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 17 /**
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 18 * comedi_isadma_program - program and enable an ISA DMA transfer
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 19 * @desc: the ISA DMA cookie to program and enable
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 20 */
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 21 void comedi_isadma_program(struct comedi_isadma_desc *desc)
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 22 {
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 23 unsigned long flags;
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 24
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 @25 flags = claim_dma_lock();
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 26 clear_dma_ff(desc->chan);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 27 set_dma_mode(desc->chan, desc->mode);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 28 set_dma_addr(desc->chan, desc->hw_addr);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 29 set_dma_count(desc->chan, desc->size);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 30 enable_dma(desc->chan);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 31 release_dma_lock(flags);
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 32 }
20a1ea7d6ba184 H Hartley Sweeten 2015-01-14 33 EXPORT_SYMBOL_GPL(comedi_isadma_program);
20a1ea7d6ba184 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>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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