From 42de597eabc2ba837203788170cc57814a9df7a7 Mon Sep 17 00:00:00 2001 From: Joe Lawrence Date: Wed, 25 Jun 2014 17:04:06 -0400 Subject: [PATCH] mpt2sas: annotate ioc->reply_post_host_index as __iomem The MPT2SAS_ADAPTER reply_post_host_index[] holds calculated addresses in memory mapped register space. Add an "__iomem" annotation to silence the following sparse warnings: drivers/scsi/mpt2sas/mpt2sas_base.c:1006:43: warning: incorrect type in argument 2 (different address spaces) expected void volatile [noderef] *addr got unsigned long long [usertype] * drivers/scsi/mpt2sas/mpt2sas_base.c:4299:22: warning: cast removes address space of expression drivers/scsi/mpt2sas/mpt2sas_base.c:4303:27: warning: cast removes address space of expression Signed-off-by: Joe Lawrence Acked-by: Sreekanth Reddy Signed-off-by: Christoph Hellwig --- drivers/scsi/mpt2sas/mpt2sas_base.c | 9 +++++---- drivers/scsi/mpt2sas/mpt2sas_base.h | 2 +- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 8b88118..a31397c 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -4295,12 +4295,13 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) goto out_free_resources; if (ioc->is_warpdrive) { - ioc->reply_post_host_index[0] = - (resource_size_t *)&ioc->chip->ReplyPostHostIndex; + ioc->reply_post_host_index[0] = (resource_size_t __iomem *) + &ioc->chip->ReplyPostHostIndex; for (i = 1; i < ioc->cpu_msix_table_sz; i++) - ioc->reply_post_host_index[i] = (resource_size_t *) - ((u8 *)&ioc->chip->Doorbell + (0x4000 + ((i - 1) + ioc->reply_post_host_index[i] = + (resource_size_t __iomem *) + ((u8 __iomem *)&ioc->chip->Doorbell + (0x4000 + ((i - 1) * 4))); } diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index fd3b998..0ac5815 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -837,7 +837,7 @@ struct MPT2SAS_ADAPTER { u8 msix_enable; u16 msix_vector_count; u8 *cpu_msix_table; - resource_size_t **reply_post_host_index; + resource_size_t __iomem **reply_post_host_index; u16 cpu_msix_table_sz; u32 ioc_reset_count; MPT2SAS_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds; -- 2.7.4