diff mbox series

[v2,2/2] scsi: arcmsr: use round_up() instead of logical operation

Message ID 9b02f544d1c5d4a90da268ba063f1ffe4ac098ca.camel@areca.com.tw (mailing list archive)
State Superseded
Headers show
Series scsi: arcmsr: fix warning: right shift count >= width of type | expand

Commit Message

ching Huang Oct. 7, 2020, 4:42 a.m. UTC 
From: ching Huang <ching2048@areca.com.tw>

Use round_up() instead of logical operation.

Reported-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: ching Huang <ching2048@areca.com.tw>
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diff mbox series

Patch

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 55d85c9..1e358d9 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -644,13 +644,12 @@  static void arcmsr_hbaF_assign_regAddr(struct AdapterControlBlock *acb)
 	struct MessageUnit_F __iomem *pmuF;
 
 	memset(acb->dma_coherent2, 0xff, acb->completeQ_size);
-	acb->message_wbuffer = (uint32_t *)((((unsigned long)acb->dma_coherent2 +
-		acb->completeQ_size + 3) >> 2) << 2);
+	acb->message_wbuffer = (uint32_t *)round_up((unsigned long)acb->dma_coherent2 +
+		acb->completeQ_size, 4);
 	acb->message_rbuffer = ((void *)acb->message_wbuffer) + 0x100;
 	acb->msgcode_rwbuffer = ((void *)acb->message_wbuffer) + 0x200;
 	memset((void *)acb->message_wbuffer, 0, MESG_RW_BUFFER_SIZE);
-	host_buffer_dma = ((acb->dma_coherent_handle2 + acb->completeQ_size +
-		3) >> 2) << 2;
+	host_buffer_dma = round_up(acb->dma_coherent_handle2 + acb->completeQ_size, 4);
 	pmuF = acb->pmuF;
 	/* host buffer low address, bit0:1 all buffer active */
 	writel(lower_32_bits(host_buffer_dma | 1), &pmuF->inbound_msgaddr0);