From: kernel test robot <lkp@intel.com>
To: Cai Huoqing <caihuoqing@baidu.com>
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
Linux Memory Management List <linux-mm@kvack.org>,
Vinod Koul <vkoul@kernel.org>
Subject: [linux-next:master 10053/13220] drivers/dma/sa11x0-dma.c:1004:12: error: unused function 'sa11x0_dma_suspend'
Date: Sun, 7 Nov 2021 10:37:09 +0800 [thread overview]
Message-ID: <202111071055.vrR9UHln-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 6a37ebbe07bf72cd5fd791d67a664f37c8f17a13
commit: 7789e3464cb610cb8925cd8605bc0aa9d088280d [10053/13220] dmaengine: sa11x0: Make use of the helper macro SET_NOIRQ_SYSTEM_SLEEP_PM_OPS()
config: i386-buildonly-randconfig-r004-20211025 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project a461fa64bb37cffd73f683c74f6b0780379fc2ca)
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/next/linux-next.git/commit/?id=7789e3464cb610cb8925cd8605bc0aa9d088280d
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout 7789e3464cb610cb8925cd8605bc0aa9d088280d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Note: the linux-next/master HEAD 6a37ebbe07bf72cd5fd791d67a664f37c8f17a13 builds fine.
It may have been fixed somewhere.
All errors (new ones prefixed by >>):
>> drivers/dma/sa11x0-dma.c:1004:12: error: unused function 'sa11x0_dma_suspend' [-Werror,-Wunused-function]
static int sa11x0_dma_suspend(struct device *dev)
^
>> drivers/dma/sa11x0-dma.c:1042:12: error: unused function 'sa11x0_dma_resume' [-Werror,-Wunused-function]
static int sa11x0_dma_resume(struct device *dev)
^
2 errors generated.
vim +/sa11x0_dma_suspend +1004 drivers/dma/sa11x0-dma.c
6365bead25efc8 Russell King 2012-01-09 1003
6365bead25efc8 Russell King 2012-01-09 @1004 static int sa11x0_dma_suspend(struct device *dev)
6365bead25efc8 Russell King 2012-01-09 1005 {
6365bead25efc8 Russell King 2012-01-09 1006 struct sa11x0_dma_dev *d = dev_get_drvdata(dev);
6365bead25efc8 Russell King 2012-01-09 1007 unsigned pch;
6365bead25efc8 Russell King 2012-01-09 1008
6365bead25efc8 Russell King 2012-01-09 1009 for (pch = 0; pch < NR_PHY_CHAN; pch++) {
6365bead25efc8 Russell King 2012-01-09 1010 struct sa11x0_dma_phy *p = &d->phy[pch];
6365bead25efc8 Russell King 2012-01-09 1011 u32 dcsr, saved_dcsr;
6365bead25efc8 Russell King 2012-01-09 1012
6365bead25efc8 Russell King 2012-01-09 1013 dcsr = saved_dcsr = readl_relaxed(p->base + DMA_DCSR_R);
6365bead25efc8 Russell King 2012-01-09 1014 if (dcsr & DCSR_RUN) {
6365bead25efc8 Russell King 2012-01-09 1015 writel(DCSR_RUN | DCSR_IE, p->base + DMA_DCSR_C);
6365bead25efc8 Russell King 2012-01-09 1016 dcsr = readl_relaxed(p->base + DMA_DCSR_R);
6365bead25efc8 Russell King 2012-01-09 1017 }
6365bead25efc8 Russell King 2012-01-09 1018
6365bead25efc8 Russell King 2012-01-09 1019 saved_dcsr &= DCSR_RUN | DCSR_IE;
6365bead25efc8 Russell King 2012-01-09 1020 if (dcsr & DCSR_BIU) {
6365bead25efc8 Russell King 2012-01-09 1021 p->dbs[0] = readl_relaxed(p->base + DMA_DBSB);
6365bead25efc8 Russell King 2012-01-09 1022 p->dbt[0] = readl_relaxed(p->base + DMA_DBTB);
6365bead25efc8 Russell King 2012-01-09 1023 p->dbs[1] = readl_relaxed(p->base + DMA_DBSA);
6365bead25efc8 Russell King 2012-01-09 1024 p->dbt[1] = readl_relaxed(p->base + DMA_DBTA);
6365bead25efc8 Russell King 2012-01-09 1025 saved_dcsr |= (dcsr & DCSR_STRTA ? DCSR_STRTB : 0) |
6365bead25efc8 Russell King 2012-01-09 1026 (dcsr & DCSR_STRTB ? DCSR_STRTA : 0);
6365bead25efc8 Russell King 2012-01-09 1027 } else {
6365bead25efc8 Russell King 2012-01-09 1028 p->dbs[0] = readl_relaxed(p->base + DMA_DBSA);
6365bead25efc8 Russell King 2012-01-09 1029 p->dbt[0] = readl_relaxed(p->base + DMA_DBTA);
6365bead25efc8 Russell King 2012-01-09 1030 p->dbs[1] = readl_relaxed(p->base + DMA_DBSB);
6365bead25efc8 Russell King 2012-01-09 1031 p->dbt[1] = readl_relaxed(p->base + DMA_DBTB);
6365bead25efc8 Russell King 2012-01-09 1032 saved_dcsr |= dcsr & (DCSR_STRTA | DCSR_STRTB);
6365bead25efc8 Russell King 2012-01-09 1033 }
6365bead25efc8 Russell King 2012-01-09 1034 p->dcsr = saved_dcsr;
6365bead25efc8 Russell King 2012-01-09 1035
6365bead25efc8 Russell King 2012-01-09 1036 writel(DCSR_STRTA | DCSR_STRTB, p->base + DMA_DCSR_C);
6365bead25efc8 Russell King 2012-01-09 1037 }
6365bead25efc8 Russell King 2012-01-09 1038
6365bead25efc8 Russell King 2012-01-09 1039 return 0;
6365bead25efc8 Russell King 2012-01-09 1040 }
6365bead25efc8 Russell King 2012-01-09 1041
6365bead25efc8 Russell King 2012-01-09 @1042 static int sa11x0_dma_resume(struct device *dev)
6365bead25efc8 Russell King 2012-01-09 1043 {
6365bead25efc8 Russell King 2012-01-09 1044 struct sa11x0_dma_dev *d = dev_get_drvdata(dev);
6365bead25efc8 Russell King 2012-01-09 1045 unsigned pch;
6365bead25efc8 Russell King 2012-01-09 1046
6365bead25efc8 Russell King 2012-01-09 1047 for (pch = 0; pch < NR_PHY_CHAN; pch++) {
6365bead25efc8 Russell King 2012-01-09 1048 struct sa11x0_dma_phy *p = &d->phy[pch];
6365bead25efc8 Russell King 2012-01-09 1049 struct sa11x0_dma_desc *txd = NULL;
6365bead25efc8 Russell King 2012-01-09 1050 u32 dcsr = readl_relaxed(p->base + DMA_DCSR_R);
6365bead25efc8 Russell King 2012-01-09 1051
6365bead25efc8 Russell King 2012-01-09 1052 WARN_ON(dcsr & (DCSR_BIU | DCSR_STRTA | DCSR_STRTB | DCSR_RUN));
6365bead25efc8 Russell King 2012-01-09 1053
6365bead25efc8 Russell King 2012-01-09 1054 if (p->txd_done)
6365bead25efc8 Russell King 2012-01-09 1055 txd = p->txd_done;
6365bead25efc8 Russell King 2012-01-09 1056 else if (p->txd_load)
6365bead25efc8 Russell King 2012-01-09 1057 txd = p->txd_load;
6365bead25efc8 Russell King 2012-01-09 1058
6365bead25efc8 Russell King 2012-01-09 1059 if (!txd)
6365bead25efc8 Russell King 2012-01-09 1060 continue;
6365bead25efc8 Russell King 2012-01-09 1061
6365bead25efc8 Russell King 2012-01-09 1062 writel_relaxed(txd->ddar, p->base + DMA_DDAR);
6365bead25efc8 Russell King 2012-01-09 1063
6365bead25efc8 Russell King 2012-01-09 1064 writel_relaxed(p->dbs[0], p->base + DMA_DBSA);
6365bead25efc8 Russell King 2012-01-09 1065 writel_relaxed(p->dbt[0], p->base + DMA_DBTA);
6365bead25efc8 Russell King 2012-01-09 1066 writel_relaxed(p->dbs[1], p->base + DMA_DBSB);
6365bead25efc8 Russell King 2012-01-09 1067 writel_relaxed(p->dbt[1], p->base + DMA_DBTB);
6365bead25efc8 Russell King 2012-01-09 1068 writel_relaxed(p->dcsr, p->base + DMA_DCSR_S);
6365bead25efc8 Russell King 2012-01-09 1069 }
6365bead25efc8 Russell King 2012-01-09 1070
6365bead25efc8 Russell King 2012-01-09 1071 return 0;
6365bead25efc8 Russell King 2012-01-09 1072 }
6365bead25efc8 Russell King 2012-01-09 1073
:::::: The code at line 1004 was first introduced by commit
:::::: 6365bead25efc84a4cf4aa9b0a7638f8a970cdff DMA: sa11x0: add SA-11x0 DMA driver
:::::: TO: Russell King <rmk+kernel@arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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