Re: [PATCH] fs : Fix warning using plain integer as NULL
On 11/8/23 16:17, Abhinav Singh wrote:
Sparse static analysis tools generate a warning with this message
"Using plain integer as NULL pointer". In this case this warning is
being shown because we are trying to initialize pointer to NULL using
integer value 0.
Signed-off-by: Abhinav Singh
Reviewed-by: Jan Kara
---
fs/dax.c | 2 +-
fs/direct-io.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index 3380b43cb6bb..423fc1607dfa 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1128,7 +1128,7 @@ static int dax_iomap_copy_around(loff_t pos, uint64_t
length, size_t align_size,
/* zero the edges if srcmap is a HOLE or IOMAP_UNWRITTEN */
bool zero_edge = srcmap->flags & IOMAP_F_SHARED ||
srcmap->type == IOMAP_UNWRITTEN;
- void *saddr = 0;
+ void *saddr = NULL;
int ret = 0;
if (!zero_edge) {
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 20533266ade6..60456263a338 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1114,7 +1114,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct
inode *inode,
loff_t offset = iocb->ki_pos;
const loff_t end = offset + count;
struct dio *dio;
- struct dio_submit sdio = { 0, };
+ struct dio_submit sdio = { NULL, };
struct buffer_head map_bh = { 0, };
struct blk_plug plug;
unsigned long align = offset | iov_iter_alignment(iter);
Thanks a lot maintainers for looking into this patch and accepting this
patch.
BR
Abhinav
[PATCH] fs : Fix warning using plain integer as NULL
Sparse static analysis tools generate a warning with this message
"Using plain integer as NULL pointer". In this case this warning is
being shown because we are trying to initialize pointer to NULL using
integer value 0.
Signed-off-by: Abhinav Singh
Reviewed-by: Jan Kara
---
fs/dax.c | 2 +-
fs/direct-io.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index 3380b43cb6bb..423fc1607dfa 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1128,7 +1128,7 @@ static int dax_iomap_copy_around(loff_t pos, uint64_t
length, size_t align_size,
/* zero the edges if srcmap is a HOLE or IOMAP_UNWRITTEN */
bool zero_edge = srcmap->flags & IOMAP_F_SHARED ||
srcmap->type == IOMAP_UNWRITTEN;
- void *saddr = 0;
+ void *saddr = NULL;
int ret = 0;
if (!zero_edge) {
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 20533266ade6..60456263a338 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1114,7 +1114,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct
inode *inode,
loff_t offset = iocb->ki_pos;
const loff_t end = offset + count;
struct dio *dio;
- struct dio_submit sdio = { 0, };
+ struct dio_submit sdio = { NULL, };
struct buffer_head map_bh = { 0, };
struct blk_plug plug;
unsigned long align = offset | iov_iter_alignment(iter);
--
2.39.2
Re: [PATCH] fs : Fix warning using plain integer as NULL
On Wed 08-11-23 10:15:50, Abhinav Singh wrote:
> Sparse static analysis tools generate a warning with this message
> "Using plain integer as NULL pointer". In this case this warning is
> being shown because we are trying to initialize pointer to NULL using
> integer value 0.
>
> Signed-off-by: Abhinav Singh
Nice cleanup. Feel free to add:
Reviewed-by: Jan Kara
Honza
> ---
> fs/dax.c | 2 +-
> fs/direct-io.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/dax.c b/fs/dax.c
> index 3380b43cb6bb..423fc1607dfa 100644
> --- a/fs/dax.c
> +++ b/fs/dax.c
> @@ -1128,7 +1128,7 @@ static int dax_iomap_copy_around(loff_t pos, uint64_t
> length, size_t align_size,
> /* zero the edges if srcmap is a HOLE or IOMAP_UNWRITTEN */
> bool zero_edge = srcmap->flags & IOMAP_F_SHARED ||
>srcmap->type == IOMAP_UNWRITTEN;
> - void *saddr = 0;
> + void *saddr = NULL;
> int ret = 0;
>
> if (!zero_edge) {
> diff --git a/fs/direct-io.c b/fs/direct-io.c
> index 20533266ade6..60456263a338 100644
> --- a/fs/direct-io.c
> +++ b/fs/direct-io.c
> @@ -1114,7 +1114,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct
> inode *inode,
> loff_t offset = iocb->ki_pos;
> const loff_t end = offset + count;
> struct dio *dio;
> - struct dio_submit sdio = { 0, };
> + struct dio_submit sdio = { NULL, };
> struct buffer_head map_bh = { 0, };
> struct blk_plug plug;
> unsigned long align = offset | iov_iter_alignment(iter);
> --
> 2.39.2
>
--
Jan Kara
SUSE Labs, CR
Re: [PATCH] fs : Fix warning using plain integer as NULL
On Wed, 08 Nov 2023 10:15:50 +0530, Abhinav Singh wrote: > Sparse static analysis tools generate a warning with this message > "Using plain integer as NULL pointer". In this case this warning is > being shown because we are trying to initialize pointer to NULL using > integer value 0. > > Applied to the vfs.misc branch of the vfs/vfs.git tree. Patches in the vfs.misc branch should appear in linux-next soon. Please report any outstanding bugs that were missed during review in a new review to the original patch series allowing us to drop it. It's encouraged to provide Acked-bys and Reviewed-bys even though the patch has now been applied. If possible patch trailers will be updated. Note that commit hashes shown below are subject to change due to rebase, trailer updates or similar. If in doubt, please check the listed branch. tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git branch: vfs.misc [1/1] fs : Fix warning using plain integer as NULL https://git.kernel.org/vfs/vfs/c/372bfbd2ea43
[PATCH] fs : Fix warning using plain integer as NULL
Sparse static analysis tools generate a warning with this message
"Using plain integer as NULL pointer". In this case this warning is
being shown because we are trying to initialize pointer to NULL using
integer value 0.
Signed-off-by: Abhinav Singh
---
fs/dax.c | 2 +-
fs/direct-io.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/dax.c b/fs/dax.c
index 3380b43cb6bb..423fc1607dfa 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1128,7 +1128,7 @@ static int dax_iomap_copy_around(loff_t pos, uint64_t
length, size_t align_size,
/* zero the edges if srcmap is a HOLE or IOMAP_UNWRITTEN */
bool zero_edge = srcmap->flags & IOMAP_F_SHARED ||
srcmap->type == IOMAP_UNWRITTEN;
- void *saddr = 0;
+ void *saddr = NULL;
int ret = 0;
if (!zero_edge) {
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 20533266ade6..60456263a338 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1114,7 +1114,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct
inode *inode,
loff_t offset = iocb->ki_pos;
const loff_t end = offset + count;
struct dio *dio;
- struct dio_submit sdio = { 0, };
+ struct dio_submit sdio = { NULL, };
struct buffer_head map_bh = { 0, };
struct blk_plug plug;
unsigned long align = offset | iov_iter_alignment(iter);
--
2.39.2
