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* [Qemu-devel] [PATCH] Fix improper usage of cpu_to_be32 in vpc
@ 2014-09-04 14:43 Gordon Gong
  2014-09-05 10:04 ` Stefan Hajnoczi
  0 siblings, 1 reply; 6+ messages in thread
From: Gordon Gong @ 2014-09-04 14:43 UTC (permalink / raw)
  To: stefanha; +Cc: Xiaoding (B), Liuji (Jeremy), Luohao (brian), qemu-devel


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>From fd3f0fd9c53d7782d4d835597c8a07b897bec3d0 Mon Sep 17 00:00:00 2001

From: Xiaodong Gong <gordongong0350@gmail.com>

Date: Sat, 30 Aug 2014 03:17:03 +0800

Subject: Fix improper usage of cpu_to_be32 in vpc



cpu_to_be32() is wrong since vhd_type is an enum constant

(just a regular CPU-endian integer).



Signed-off-by: Xiaodong Gong <gordongong0350@gmail.com>

---

block/vpc.c | 8 ++++----

1 file changed, 4 insertions(+), 4 deletions(-)



diff --git a/block/vpc.c b/block/vpc.c

index 055efc4..c024b4c 100644

--- a/block/vpc.c

+++ b/block/vpc.c

@@ -489,7 +489,7 @@ static int vpc_get_info(BlockDriverState *bs,
BlockDriverInfo *bdi)

     BDRVVPCState *s = (BDRVVPCState *)bs->opaque;

     VHDFooter *footer = (VHDFooter *) s->footer_buf;

-    if (cpu_to_be32(footer->type) != VHD_FIXED) {

+    if (be32_to_cpu(footer->type) != VHD_FIXED) {

         bdi->cluster_size = s->block_size;

     }

@@ -506,7 +506,7 @@ static int vpc_read(BlockDriverState *bs, int64_t
sector_num,

     int64_t sectors, sectors_per_block;

     VHDFooter *footer = (VHDFooter *) s->footer_buf;

-    if (cpu_to_be32(footer->type) == VHD_FIXED) {

+    if (be32_to_cpu(footer->type) == VHD_FIXED) {

         return bdrv_read(bs->file, sector_num, buf, nb_sectors);

     }

     while (nb_sectors > 0) {

@@ -555,7 +555,7 @@ static int vpc_write(BlockDriverState *bs, int64_t
sector_num,

     int ret;

     VHDFooter *footer =  (VHDFooter *) s->footer_buf;

-    if (cpu_to_be32(footer->type) == VHD_FIXED) {

+    if (be32_to_cpu(footer->type) == VHD_FIXED) {

         return bdrv_write(bs->file, sector_num, buf, nb_sectors);

     }

     while (nb_sectors > 0) {

@@ -857,7 +857,7 @@ static int vpc_has_zero_init(BlockDriverState *bs)

     BDRVVPCState *s = bs->opaque;

     VHDFooter *footer =  (VHDFooter *) s->footer_buf;

-    if (cpu_to_be32(footer->type) == VHD_FIXED) {

+    if (be32_to_cpu(footer->type) == VHD_FIXED) {

         return bdrv_has_zero_init(bs->file);

     } else {

         return 1;

--

1.8.3.1

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From fd3f0fd9c53d7782d4d835597c8a07b897bec3d0 Mon Sep 17 00:00:00 2001
From: Xiaodong Gong <gordongong0350@gmail.com>
Date: Sat, 30 Aug 2014 03:17:03 +0800
Subject: Fix improper usage of cpu_to_be32 in vpc

cpu_to_be32() is wrong since vhd_type is an enum constant
(just a regular CPU-endian integer).

Signed-off-by: Xiaodong Gong <gordongong0350@gmail.com>
---
 block/vpc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/vpc.c b/block/vpc.c
index 055efc4..c024b4c 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -489,7 +489,7 @@ static int vpc_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
     BDRVVPCState *s = (BDRVVPCState *)bs->opaque;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) != VHD_FIXED) {
+    if (be32_to_cpu(footer->type) != VHD_FIXED) {
         bdi->cluster_size = s->block_size;
     }
 
@@ -506,7 +506,7 @@ static int vpc_read(BlockDriverState *bs, int64_t sector_num,
     int64_t sectors, sectors_per_block;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_read(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -555,7 +555,7 @@ static int vpc_write(BlockDriverState *bs, int64_t sector_num,
     int ret;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_write(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -857,7 +857,7 @@ static int vpc_has_zero_init(BlockDriverState *bs)
     BDRVVPCState *s = bs->opaque;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_has_zero_init(bs->file);
     } else {
         return 1;
-- 
1.8.3.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [Qemu-devel] [PATCH] Fix improper usage of cpu_to_be32 in vpc
@ 2014-09-05 18:40 21G
  2014-09-08 11:10 ` Kevin Wolf
  0 siblings, 1 reply; 6+ messages in thread
From: 21G @ 2014-09-05 18:40 UTC (permalink / raw)
  To: kwolf, stefanha; +Cc: qemu-devel

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cpu_to_be32() is wrong since vhd_type is an enum constant
(just a regular CPU-endian integer).

Signed-off-by: Xiaodong Gong <gordongong0350@gmail.com>
---
 block/vpc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/vpc.c b/block/vpc.c
index 055efc4..c024b4c 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -489,7 +489,7 @@ static int vpc_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
     BDRVVPCState *s = (BDRVVPCState *)bs->opaque;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) != VHD_FIXED) {
+    if (be32_to_cpu(footer->type) != VHD_FIXED) {
         bdi->cluster_size = s->block_size;
     }
 
@@ -506,7 +506,7 @@ static int vpc_read(BlockDriverState *bs, int64_t sector_num,
     int64_t sectors, sectors_per_block;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_read(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -555,7 +555,7 @@ static int vpc_write(BlockDriverState *bs, int64_t sector_num,
     int ret;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_write(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -857,7 +857,7 @@ static int vpc_has_zero_init(BlockDriverState *bs)
     BDRVVPCState *s = bs->opaque;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_has_zero_init(bs->file);
     } else {
         return 1;
-- 
1.8.3.1

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^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [Qemu-devel] [PATCH] Fix improper usage of cpu_to_be32 in vpc
@ 2014-09-08 14:40 Xiaodong Gong
  2014-09-08 15:34 ` Kevin Wolf
  0 siblings, 1 reply; 6+ messages in thread
From: Xiaodong Gong @ 2014-09-08 14:40 UTC (permalink / raw)
  To: kwolf; +Cc: qemu-devel, stefanha, Xiaodong Gong

From: Xiaodong Gong <gordongong0350@gmail.com>

cpu_to_be32() is wrong since vhd_type is an enum constant
(just a regular CPU-endian integer).

Signed-off-by: Xiaodong Gong <gordongong0350@gmail.com>
---
 block/vpc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/vpc.c b/block/vpc.c
index 055efc4..c024b4c 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -489,7 +489,7 @@ static int vpc_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
     BDRVVPCState *s = (BDRVVPCState *)bs->opaque;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) != VHD_FIXED) {
+    if (be32_to_cpu(footer->type) != VHD_FIXED) {
         bdi->cluster_size = s->block_size;
     }
 
@@ -506,7 +506,7 @@ static int vpc_read(BlockDriverState *bs, int64_t sector_num,
     int64_t sectors, sectors_per_block;
     VHDFooter *footer = (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_read(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -555,7 +555,7 @@ static int vpc_write(BlockDriverState *bs, int64_t sector_num,
     int ret;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_write(bs->file, sector_num, buf, nb_sectors);
     }
     while (nb_sectors > 0) {
@@ -857,7 +857,7 @@ static int vpc_has_zero_init(BlockDriverState *bs)
     BDRVVPCState *s = bs->opaque;
     VHDFooter *footer =  (VHDFooter *) s->footer_buf;
 
-    if (cpu_to_be32(footer->type) == VHD_FIXED) {
+    if (be32_to_cpu(footer->type) == VHD_FIXED) {
         return bdrv_has_zero_init(bs->file);
     } else {
         return 1;
-- 
1.8.3.1

^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-09-08 15:35 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-09-04 14:43 [Qemu-devel] [PATCH] Fix improper usage of cpu_to_be32 in vpc Gordon Gong
2014-09-05 10:04 ` Stefan Hajnoczi
  -- strict thread matches above, loose matches on Subject: below --
2014-09-05 18:40 21G
2014-09-08 11:10 ` Kevin Wolf
2014-09-08 14:40 Xiaodong Gong
2014-09-08 15:34 ` Kevin Wolf

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