Re: [PATCH] powerpc/kernel/sysfs: Export ldbar spr to sysfs

From: kbuild test robot
Date: Mon Oct 30 2017 - 06:26:09 EST

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In reply to: Anju T Sudhakar: "[PATCH] powerpc/kernel/sysfs: Export ldbar spr to sysfs"
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Hi Anju,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.14-rc7 next-20171018]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Anju-T-Sudhakar/powerpc-kernel-sysfs-Export-ldbar-spr-to-sysfs/20171030-155220
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-storcenter_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=powerpc

All error/warnings (new ones prefixed by >>):

>> arch/powerpc/kernel/sysfs.c:419:16: error: 'show_ldbar' defined but not used [-Werror=unused-function]
static ssize_t show_##NAME(struct device *dev, \
^
>> arch/powerpc/kernel/sysfs.c:443:2: note: in expansion of macro '__SYSFS_SPRSETUP_SHOW_STORE'
__SYSFS_SPRSETUP_SHOW_STORE(NAME)
^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/powerpc/kernel/sysfs.c:469:1: note: in expansion of macro 'SYSFS_PMCSETUP'
SYSFS_PMCSETUP(ldbar, SPRN_LDBAR);
^~~~~~~~~~~~~~
cc1: all warnings being treated as errors

vim +/show_ldbar +419 arch/powerpc/kernel/sysfs.c

39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 417
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 418 #define __SYSFS_SPRSETUP_SHOW_STORE(NAME) \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 @419 static ssize_t show_##NAME(struct device *dev, \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 420 struct device_attribute *attr, \
4a0b2b4d arch/powerpc/kernel/sysfs.c Andi Kleen 2008-07-01 421 char *buf) \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 422 { \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 423 struct cpu *cpu = container_of(dev, struct cpu, dev); \
9a371934 arch/powerpc/kernel/sysfs.c Rusty Russell 2009-03-11 424 unsigned long val; \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 425 smp_call_function_single(cpu->dev.id, read_##NAME, &val, 1); \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 426 return sprintf(buf, "%lx\n", val); \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 427 } \
3ff6eecc arch/powerpc/kernel/sysfs.c Adrian Bunk 2008-01-24 428 static ssize_t __used \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 429 store_##NAME(struct device *dev, struct device_attribute *attr, \
4a0b2b4d arch/powerpc/kernel/sysfs.c Andi Kleen 2008-07-01 430 const char *buf, size_t count) \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 431 { \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 432 struct cpu *cpu = container_of(dev, struct cpu, dev); \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 433 unsigned long val; \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 434 int ret = sscanf(buf, "%lx", &val); \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 435 if (ret != 1) \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 436 return -EINVAL; \
8a25a2fd arch/powerpc/kernel/sysfs.c Kay Sievers 2011-12-21 437 smp_call_function_single(cpu->dev.id, write_##NAME, &val, 1); \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 438 return count; \
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 439 }
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 440
fd7e4296 arch/powerpc/kernel/sysfs.c Madhavan Srinivasan 2013-10-03 441 #define SYSFS_PMCSETUP(NAME, ADDRESS) \
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 442 __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ppc_enable_pmcs()) \
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 @443 __SYSFS_SPRSETUP_SHOW_STORE(NAME)
fd7e4296 arch/powerpc/kernel/sysfs.c Madhavan Srinivasan 2013-10-03 444 #define SYSFS_SPRSETUP(NAME, ADDRESS) \
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 445 __SYSFS_SPRSETUP_READ_WRITE(NAME, ADDRESS, ) \
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 446 __SYSFS_SPRSETUP_SHOW_STORE(NAME)
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 447
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 448 #define SYSFS_SPRSETUP_SHOW_STORE(NAME) \
39a360ef arch/powerpc/kernel/sysfs.c Sam bobroff 2014-05-21 449 __SYSFS_SPRSETUP_SHOW_STORE(NAME)
6529c13d arch/powerpc/kernel/sysfs.c Olof Johansson 2007-01-28 450
6529c13d arch/powerpc/kernel/sysfs.c Olof Johansson 2007-01-28 451 /* Let's define all possible registers, we'll only hook up the ones
6529c13d arch/powerpc/kernel/sysfs.c Olof Johansson 2007-01-28 452 * that are implemented on the current processor
6529c13d arch/powerpc/kernel/sysfs.c Olof Johansson 2007-01-28 453 */
6529c13d arch/powerpc/kernel/sysfs.c Olof Johansson 2007-01-28 454
33a7f122 arch/powerpc/kernel/sysfs.c Kumar Gala 2008-09-18 455 #if defined(CONFIG_PPC64)
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 456 #define HAS_PPC_PMC_CLASSIC 1
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 457 #define HAS_PPC_PMC_IBM 1
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 458 #define HAS_PPC_PMC_PA6T 1
33a7f122 arch/powerpc/kernel/sysfs.c Kumar Gala 2008-09-18 459 #elif defined(CONFIG_6xx)
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 460 #define HAS_PPC_PMC_CLASSIC 1
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 461 #define HAS_PPC_PMC_IBM 1
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 462 #define HAS_PPC_PMC_G4 1
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 463 #endif
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 464
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 465
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 466 #ifdef HAS_PPC_PMC_CLASSIC
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 467 SYSFS_PMCSETUP(mmcr0, SPRN_MMCR0);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 468 SYSFS_PMCSETUP(mmcr1, SPRN_MMCR1);
080163db arch/powerpc/kernel/sysfs.c Anju T Sudhakar 2017-10-27 @469 SYSFS_PMCSETUP(ldbar, SPRN_LDBAR);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 470 SYSFS_PMCSETUP(pmc1, SPRN_PMC1);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 471 SYSFS_PMCSETUP(pmc2, SPRN_PMC2);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 472 SYSFS_PMCSETUP(pmc3, SPRN_PMC3);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 473 SYSFS_PMCSETUP(pmc4, SPRN_PMC4);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 474 SYSFS_PMCSETUP(pmc5, SPRN_PMC5);
^1da177e arch/ppc64/kernel/sysfs.c Linus Torvalds 2005-04-16 475 SYSFS_PMCSETUP(pmc6, SPRN_PMC6);
b950bdd0 arch/powerpc/kernel/sysfs.c Benjamin Herrenschmidt 2008-08-18 476

:::::: The code at line 419 was first introduced by commit
:::::: 8a25a2fd126c621f44f3aeaef80d51f00fc11639 cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystem

:::::: TO: Kay Sievers <kay.sievers@xxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxx>

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Next message: Antoine Tenart: "[PATCH net-next 5/6] net: mvpp2: use the aggr txq size define everywhere"
Previous message: Antoine Tenart: "[PATCH net-next 6/6] net: mvpp2: simplify the Tx desc set DMA logic"
In reply to: Anju T Sudhakar: "[PATCH] powerpc/kernel/sysfs: Export ldbar spr to sysfs"
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