Switch to use module_parport_driver() to reduce boilerplate code.
Note, device_initcall() is a default for module_init().
Signed-off-by: Andy Shevchenko <[email protected]>
---
drivers/spi/spi-lm70llp.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index 174dba29b1dd..f914b8d2043e 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -320,18 +320,7 @@ static struct parport_driver spi_lm70llp_drv = {
.detach = spi_lm70llp_detach,
.devmodel = true,
};
-
-static int __init init_spi_lm70llp(void)
-{
- return parport_register_driver(&spi_lm70llp_drv);
-}
-module_init(init_spi_lm70llp);
-
-static void __exit cleanup_spi_lm70llp(void)
-{
- parport_unregister_driver(&spi_lm70llp_drv);
-}
-module_exit(cleanup_spi_lm70llp);
+module_parport_driver(spi_lm70llp_drv);
MODULE_AUTHOR("Kaiwan N Billimoria <[email protected]>");
MODULE_DESCRIPTION(
--
2.30.0
On Mon, Feb 15, 2021 at 10:23:53PM +0200, Andy Shevchenko wrote:
> Switch to use module_parport_driver() to reduce boilerplate code.
> Note, device_initcall() is a default for module_init().
Acked-by: Mark Brown <[email protected]>
Hi Andy,
I love your patch! Yet something to improve:
[auto build test ERROR on spi/for-next]
[also build test ERROR on linus/master v5.11 next-20210215]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Andy-Shevchenko/parport-Introduce-module_parport_driver-helper-macro/20210216-042909
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
config: powerpc-randconfig-r034-20210215 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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
# https://github.com/0day-ci/linux/commit/b436c5f6666ea5fb47d7b1826a66d4110bb37072
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Andy-Shevchenko/parport-Introduce-module_parport_driver-helper-macro/20210216-042909
git checkout b436c5f6666ea5fb47d7b1826a66d4110bb37072
# 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 <[email protected]>
All errors (new ones prefixed by >>):
^
arch/powerpc/include/asm/io.h:537:62: note: expanded from macro '__do_outl'
#define __do_outl(val, port) writel(val,(PCI_IO_ADDR)_IO_BASE+port);
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:43:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:205:1: note: expanded from here
__do_insb
^
arch/powerpc/include/asm/io.h:556:56: note: expanded from macro '__do_insb'
#define __do_insb(p, b, n) readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:207:1: note: expanded from here
__do_insw
^
arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw'
#define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:209:1: note: expanded from here
__do_insl
^
arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl'
#define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:211:1: note: expanded from here
__do_outsb
^
arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb'
#define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:213:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/spi/spi-lm70llp.c:19:
In file included from include/linux/spi/spi.h:15:
In file included from include/linux/scatterlist.h:9:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:215:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
>> drivers/spi/spi-lm70llp.c:323:1: error: implicit declaration of function 'parport_add_driver' [-Werror,-Wimplicit-function-declaration]
module_parport_driver(spi_lm70llp_drv);
^
include/linux/parport.h:315:34: note: expanded from macro 'module_parport_driver'
module_driver(__parport_driver, parport_add_driver, parport_del_driver)
^
>> drivers/spi/spi-lm70llp.c:323:1: error: implicit declaration of function 'parport_del_driver' [-Werror,-Wimplicit-function-declaration]
include/linux/parport.h:315:54: note: expanded from macro 'module_parport_driver'
module_driver(__parport_driver, parport_add_driver, parport_del_driver)
^
drivers/spi/spi-lm70llp.c:323:1: note: did you mean 'parport_del_port'?
include/linux/parport.h:315:54: note: expanded from macro 'module_parport_driver'
module_driver(__parport_driver, parport_add_driver, parport_del_driver)
^
include/linux/parport.h:328:6: note: 'parport_del_port' declared here
void parport_del_port(struct parport *);
^
12 warnings and 2 errors generated.
vim +/parport_add_driver +323 drivers/spi/spi-lm70llp.c
316
317 static struct parport_driver spi_lm70llp_drv = {
318 .name = DRVNAME,
319 .match_port = spi_lm70llp_attach,
320 .detach = spi_lm70llp_detach,
321 .devmodel = true,
322 };
> 323 module_parport_driver(spi_lm70llp_drv);
324
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]