From: Tang Yuantian <Yuantian.Tang@xxxxxxxxxxxxx> kbuild test robot reports the warnings: drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': >> include/asm-generic/io.h:163:2: warning: 'px_is' may be used >> uninitialized in this function [-Wuninitialized] drivers/ata/ahci_qoriq.c:70:14: note: 'px_is' was declared here >> include/asm-generic/io.h:163:2: warning: 'px_cmd' may be used >> uninitialized in this function [-Wuninitialized] drivers/ata/ahci_qoriq.c:70:6: note: 'px_cmd' was declared here This patch fixed it by assigning 0 to px_is and px_cmd variables. This patch also remove line 'struct ccsr_ahci *reg_base' which is not referred by any other codes and thus a dead one. Signed-off-by: Tang Yuantian <Yuantian.Tang@xxxxxxxxxxxxx> --- drivers/ata/ahci_qoriq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c index e5e4988..f790852 100644 --- a/drivers/ata/ahci_qoriq.c +++ b/drivers/ata/ahci_qoriq.c @@ -49,7 +49,6 @@ enum ahci_qoriq_type { }; struct ahci_qoriq_priv { - struct ccsr_ahci *reg_base; enum ahci_qoriq_type type; void __iomem *ecc_addr; }; @@ -67,7 +66,7 @@ static int ahci_qoriq_hardreset(struct ata_link *link, unsigned int *class, { const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context); void __iomem *port_mmio = ahci_port_base(link->ap); - u32 px_cmd, px_is, px_val; + u32 px_cmd = 0, px_is = 0, px_val; struct ata_port *ap = link->ap; struct ahci_port_priv *pp = ap->private_data; struct ahci_host_priv *hpriv = ap->host->private_data; -- 2.1.0.27.g96db324 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html