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@xxxxxxxxx> 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@xxxxxxxxxxxxxxxx> :::::: CC: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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