From: Salyzyn, Mark Date: Tue, 1 May 2007 15:43:06 +0000 (-0400) Subject: [SCSI] aacraid: superfluous adapter reset for IBM 8 series ServeRAID controllers X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9e4d4a5d71d673901d9c1df5146ce545c2cc0cc0;p=linux-beck.git [SCSI] aacraid: superfluous adapter reset for IBM 8 series ServeRAID controllers The kexec patch introduced a superfluous (and otherwise inert) reset of some adapters. The register can have a hardware default value that has zeros for the undefined interrupts. This patch refines the test of the interrupt enable register to focus on only the interrupts that affect the driver in order to detect if an incomplete shutdown of the Adapter had occurred (kdump). Signed-off-by: Mark Salyzyn Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c index b6ee3c0a7820..291cd14f4e98 100644 --- a/drivers/scsi/aacraid/rx.c +++ b/drivers/scsi/aacraid/rx.c @@ -542,7 +542,7 @@ int _aac_rx_init(struct aac_dev *dev) dev->a_ops.adapter_sync_cmd = rx_sync_cmd; dev->a_ops.adapter_enable_int = aac_rx_disable_interrupt; dev->OIMR = status = rx_readb (dev, MUnit.OIMR); - if ((((status & 0xff) != 0xff) || reset_devices) && + if ((((status & 0x0c) != 0x0c) || reset_devices) && !aac_rx_restart_adapter(dev, 0)) ++restart; /*