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staging/hv/osd: don't reimplement ALIGN macro 

The ALIGN_DOWN macro was only used in NUM_PAGES_SPANNED.  So make the
latter easier and get rid of the former.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Uwe Kleine-König 2011-01-20 09:32:01 +01:00 committed by Greg Kroah-Hartman
parent cc04acf53f
commit 7350968193
6 changed files with 14 additions and 18 deletions
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2
drivers/staging/hv/blkvsc.c
View File

@ -85,7 +85,7 @@ int blk_vsc_initialize(struct hv_driver *driver)
*/
stor_driver->max_outstanding_req_per_channel =
((stor_driver->ring_buffer_size - PAGE_SIZE) /
ALIGN_UP(MAX_MULTIPAGE_BUFFER_PACKET +
ALIGN(MAX_MULTIPAGE_BUFFER_PACKET +
sizeof(struct vstor_packet) + sizeof(u64),
sizeof(u64)));

6
drivers/staging/hv/channel.c
View File

@ -726,7 +726,7 @@ int vmbus_sendpacket(struct vmbus_channel *channel, const void *buffer,
{
struct vmpacket_descriptor desc;
u32 packetlen = sizeof(struct vmpacket_descriptor) + bufferlen;
u32 packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
u32 packetlen_aligned = ALIGN(packetlen, sizeof(u64));
struct scatterlist bufferlist[3];
u64 aligned_data = 0;
int ret;
@ -793,7 +793,7 @@ int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel,
((MAX_PAGE_BUFFER_COUNT - pagecount) *
sizeof(struct hv_page_buffer));
packetlen = descsize + bufferlen;
packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
packetlen_aligned = ALIGN(packetlen, sizeof(u64));
/* ASSERT((packetLenAligned - packetLen) < sizeof(u64)); */
@ -862,7 +862,7 @@ int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
((MAX_MULTIPAGE_BUFFER_COUNT - pfncount) *
sizeof(u64));
packetlen = descsize + bufferlen;
packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
packetlen_aligned = ALIGN(packetlen, sizeof(u64));
/* ASSERT((packetLenAligned - packetLen) < sizeof(u64)); */

4
drivers/staging/hv/hv.c
View File

@ -267,7 +267,7 @@ int hv_init(void)
hv_context.signal_event_param =
(struct hv_input_signal_event *)
(ALIGN_UP((unsigned long)
(ALIGN((unsigned long)
hv_context.signal_event_buffer,
HV_HYPERCALL_PARAM_ALIGN));
hv_context.signal_event_param->connectionid.asu32 = 0;
@ -338,7 +338,7 @@ u16 hv_post_message(union hv_connection_id connection_id,
return -1;
aligned_msg = (struct hv_input_post_message *)
(ALIGN_UP(addr, HV_HYPERCALL_PARAM_ALIGN));
(ALIGN(addr, HV_HYPERCALL_PARAM_ALIGN));
aligned_msg->connectionid = connection_id;
aligned_msg->message_type = message_type;

10
drivers/staging/hv/osd.h
View File

@ -25,16 +25,12 @@
#ifndef _OSD_H_
#define _OSD_H_
#include <linux/kernel.h>
#include <linux/workqueue.h>
/* Defines */
#define ALIGN_UP(value, align) (((value) & (align-1)) ? \
(((value) + (align-1)) & ~(align-1)) : \
(value))
#define ALIGN_DOWN(value, align) ((value) & ~(align-1))
#define NUM_PAGES_SPANNED(addr, len) ((ALIGN_UP(addr+len, PAGE_SIZE) - \
ALIGN_DOWN(addr, PAGE_SIZE)) >> \
PAGE_SHIFT)
#define NUM_PAGES_SPANNED(addr, len) ((PAGE_ALIGN(addr + len) >> PAGE_SHIFT) - \
(addr >> PAGE_SHIFT))
#define LOWORD(dw) ((unsigned short)(dw))
#define HIWORD(dw) ((unsigned short)(((unsigned int) (dw) >> 16) & 0xFFFF))

6
drivers/staging/hv/storvsc.c
View File

@ -437,7 +437,7 @@ static void stor_vsc_on_channel_callback(void *context)
struct storvsc_device *stor_device;
u32 bytes_recvd;
u64 request_id;
unsigned char packet[ALIGN_UP(sizeof(struct vstor_packet), 8)];
unsigned char packet[ALIGN(sizeof(struct vstor_packet), 8)];
struct storvsc_request_extension *request;
int ret;
@ -452,7 +452,7 @@ static void stor_vsc_on_channel_callback(void *context)
do {
ret = vmbus_recvpacket(device->channel, packet,
ALIGN_UP(sizeof(struct vstor_packet), 8),
ALIGN(sizeof(struct vstor_packet), 8),
&bytes_recvd, &request_id);
if (ret == 0 && bytes_recvd > 0) {
DPRINT_DBG(STORVSC, "receive %d bytes - tid %llx",
@ -802,7 +802,7 @@ int stor_vsc_initialize(struct hv_driver *driver)
*/
stor_driver->max_outstanding_req_per_channel =
((stor_driver->ring_buffer_size - PAGE_SIZE) /
ALIGN_UP(MAX_MULTIPAGE_BUFFER_PACKET +
ALIGN(MAX_MULTIPAGE_BUFFER_PACKET +
sizeof(struct vstor_packet) + sizeof(u64),
sizeof(u64)));

4
drivers/staging/hv/storvsc_drv.c
View File

@ -434,7 +434,7 @@ static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
struct scatterlist *bounce_sgl;
struct page *page_buf;
num_pages = ALIGN_UP(len, PAGE_SIZE) >> PAGE_SHIFT;
num_pages = ALIGN(len, PAGE_SIZE) >> PAGE_SHIFT;
bounce_sgl = kcalloc(num_pages, sizeof(struct scatterlist), GFP_ATOMIC);
if (!bounce_sgl)
@ -720,7 +720,7 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
}
cmd_request->bounce_sgl_count =
ALIGN_UP(scsi_bufflen(scmnd), PAGE_SIZE) >>
ALIGN(scsi_bufflen(scmnd), PAGE_SIZE) >>
PAGE_SHIFT;
/*