tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/host-hisi head: f5742eac980f867a02bcd47a164b651be39bf1b2 commit: d36781c25c5ecc6f6b2825d69f02e1dd6bb571fe [26/29] PCI: hisi: Replace hisi_apb_readl() with dw_pcie_readl_rc() config: arm64-allmodconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout d36781c25c5ecc6f6b2825d69f02e1dd6bb571fe # save the attached .config to linux build tree make.cross ARCH=arm64 All warnings (new ones prefixed by >>): drivers/pci/host/pcie-hisi.c: In function 'hisi_cfg_read': >> drivers/pci/host/pcie-hisi.c:49:20: warning: unused variable 'hisi_pcie' [-Wunused-variable] struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp); ^~~~~~~~~ vim +/hisi_pcie +49 drivers/pci/host/pcie-hisi.c 5930fe4e Gabriele Paoloni 2015-11-27 33 struct hisi_pcie; 5930fe4e Gabriele Paoloni 2015-11-27 34 5930fe4e Gabriele Paoloni 2015-11-27 35 struct pcie_soc_ops { e6bff326 Bjorn Helgaas 2016-10-06 36 int (*hisi_pcie_link_up)(struct hisi_pcie *hisi_pcie); 5930fe4e Gabriele Paoloni 2015-11-27 37 }; 5930fe4e Gabriele Paoloni 2015-11-27 38 500a1d9a Zhou Wang 2015-10-29 39 struct hisi_pcie { 6d1bc503 Bjorn Helgaas 2016-10-06 40 struct pcie_port pp; /* pp.dbi_base is DT rc_dbi */ 500a1d9a Zhou Wang 2015-10-29 41 struct regmap *subctrl; 500a1d9a Zhou Wang 2015-10-29 42 u32 port_id; 5930fe4e Gabriele Paoloni 2015-11-27 43 struct pcie_soc_ops *soc_ops; 500a1d9a Zhou Wang 2015-10-29 44 }; 500a1d9a Zhou Wang 2015-10-29 45 5930fe4e Gabriele Paoloni 2015-11-27 46 /* HipXX PCIe host only supports 32-bit config access */ 707bfd31 Bjorn Helgaas 2016-10-06 47 static int hisi_cfg_read(struct pcie_port *pp, int where, int size, u32 *val) 500a1d9a Zhou Wang 2015-10-29 48 { e6bff326 Bjorn Helgaas 2016-10-06 @49 struct hisi_pcie *hisi_pcie = to_hisi_pcie(pp); 500a1d9a Zhou Wang 2015-10-29 50 u32 reg; 500a1d9a Zhou Wang 2015-10-29 51 u32 reg_val; 500a1d9a Zhou Wang 2015-10-29 52 void *walker = ®_val; 500a1d9a Zhou Wang 2015-10-29 53 500a1d9a Zhou Wang 2015-10-29 54 walker += (where & 0x3); 500a1d9a Zhou Wang 2015-10-29 55 reg = where & ~0x3; d36781c2 Bjorn Helgaas 2016-10-06 56 reg_val = dw_pcie_readl_rc(pp, reg); 500a1d9a Zhou Wang 2015-10-29 57 :::::: The code at line 49 was first introduced by commit :::::: e6bff32666718a6bba494de18a826608dc013d4a PCI: hisi: Name private struct pointer "hisi_pcie" consistently :::::: TO: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> :::::: CC: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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