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Date: Tue, 4 Oct 2022 12:54:16 +0800
From: kernel test robot <lkp@...el.com>
To: Aditya Srivastava <yashsri421@...il.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
linux-doc@...r.kernel.org
Subject: drivers/iommu/fsl_pamu.c:586: warning: This comment starts with
'/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 725737e7c21d2d25a4312c2aaa82a52bd03e3126
commit: 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf scripts: kernel-doc: add warning for comment not following kernel-doc syntax
date: 1 year, 6 months ago
config: powerpc-randconfig-r023-20221004
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3e58e839150db0857dfcb3a0bb3d4af4c6ac1abf
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/iommu/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
drivers/iommu/fsl_pamu.c:325: warning: Function parameter or member 'win_size' not described in 'pamu_config_ppaace'
drivers/iommu/fsl_pamu.c:325: warning: expecting prototype for pamu_config_paace(). Prototype was for pamu_config_ppaace() instead
drivers/iommu/fsl_pamu.c:493: warning: Function parameter or member 'omi_index' not described in 'get_ome_index'
drivers/iommu/fsl_pamu.c:493: warning: Function parameter or member 'dev' not described in 'get_ome_index'
>> drivers/iommu/fsl_pamu.c:586: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Setup operation mapping and stash destinations for QMAN and QMAN portal.
drivers/iommu/fsl_pamu.c:615: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* Setup the operation mapping table for various devices. This is a static
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for HOTPLUG_CPU
Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
Selected by [y]:
- PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
vim +586 drivers/iommu/fsl_pamu.c
695093e38c3ef6 Varun Sethi 2013-07-15 584
695093e38c3ef6 Varun Sethi 2013-07-15 585 /**
695093e38c3ef6 Varun Sethi 2013-07-15 @586 * Setup operation mapping and stash destinations for QMAN and QMAN portal.
695093e38c3ef6 Varun Sethi 2013-07-15 587 * Memory accesses to QMAN and BMAN private memory need not be coherent, so
695093e38c3ef6 Varun Sethi 2013-07-15 588 * clear the PAACE entry coherency attribute for them.
695093e38c3ef6 Varun Sethi 2013-07-15 589 */
57fb907da89977 Emil Medve 2015-03-25 590 static void setup_qbman_paace(struct paace *ppaace, int paace_type)
695093e38c3ef6 Varun Sethi 2013-07-15 591 {
695093e38c3ef6 Varun Sethi 2013-07-15 592 switch (paace_type) {
695093e38c3ef6 Varun Sethi 2013-07-15 593 case QMAN_PAACE:
695093e38c3ef6 Varun Sethi 2013-07-15 594 set_bf(ppaace->impl_attr, PAACE_IA_OTM, PAACE_OTM_INDEXED);
695093e38c3ef6 Varun Sethi 2013-07-15 595 ppaace->op_encode.index_ot.omi = OMI_QMAN_PRIV;
695093e38c3ef6 Varun Sethi 2013-07-15 596 /* setup QMAN Private data stashing for the L3 cache */
695093e38c3ef6 Varun Sethi 2013-07-15 597 set_bf(ppaace->impl_attr, PAACE_IA_CID, get_stash_id(PAMU_ATTR_CACHE_L3, 0));
695093e38c3ef6 Varun Sethi 2013-07-15 598 set_bf(ppaace->domain_attr.to_host.coherency_required, PAACE_DA_HOST_CR,
695093e38c3ef6 Varun Sethi 2013-07-15 599 0);
695093e38c3ef6 Varun Sethi 2013-07-15 600 break;
695093e38c3ef6 Varun Sethi 2013-07-15 601 case QMAN_PORTAL_PAACE:
695093e38c3ef6 Varun Sethi 2013-07-15 602 set_bf(ppaace->impl_attr, PAACE_IA_OTM, PAACE_OTM_INDEXED);
695093e38c3ef6 Varun Sethi 2013-07-15 603 ppaace->op_encode.index_ot.omi = OMI_QMAN;
695093e38c3ef6 Varun Sethi 2013-07-15 604 /* Set DQRR and Frame stashing for the L3 cache */
695093e38c3ef6 Varun Sethi 2013-07-15 605 set_bf(ppaace->impl_attr, PAACE_IA_CID, get_stash_id(PAMU_ATTR_CACHE_L3, 0));
695093e38c3ef6 Varun Sethi 2013-07-15 606 break;
695093e38c3ef6 Varun Sethi 2013-07-15 607 case BMAN_PAACE:
695093e38c3ef6 Varun Sethi 2013-07-15 608 set_bf(ppaace->domain_attr.to_host.coherency_required, PAACE_DA_HOST_CR,
695093e38c3ef6 Varun Sethi 2013-07-15 609 0);
695093e38c3ef6 Varun Sethi 2013-07-15 610 break;
695093e38c3ef6 Varun Sethi 2013-07-15 611 }
695093e38c3ef6 Varun Sethi 2013-07-15 612 }
695093e38c3ef6 Varun Sethi 2013-07-15 613
:::::: The code at line 586 was first introduced by commit
:::::: 695093e38c3ef63fcb43a2840ed865efa20671d5 iommu/fsl: Freescale PAMU driver and iommu implementation.
:::::: TO: Varun Sethi <Varun.Sethi@...escale.com>
:::::: CC: Joerg Roedel <joro@...tes.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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