* [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user()
@ 2018-05-29 13:33 Andy Shevchenko
2018-05-29 13:33 ` [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user() Andy Shevchenko
2018-05-30 6:16 ` [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Marcel Holtmann
0 siblings, 2 replies; 4+ messages in thread
From: Andy Shevchenko @ 2018-05-29 13:33 UTC (permalink / raw)
To: Marcel Holtmann, Johan Hedberg, linux-bluetooth; +Cc: Andy Shevchenko
Re-use kstrtobool_from_user() instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
net/bluetooth/hci_core.c | 23 +++++++----------------
net/bluetooth/hci_debugfs.c | 24 ++++++++----------------
net/bluetooth/smp.c | 12 ++++--------
3 files changed, 19 insertions(+), 40 deletions(-)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b0ee9edaae35..1dec33790198 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -76,19 +76,15 @@ static ssize_t dut_mode_write(struct file *file, const char __user *user_buf,
{
struct hci_dev *hdev = file->private_data;
struct sk_buff *skb;
- char buf[32];
- size_t buf_size = min(count, (sizeof(buf)-1));
bool enable;
+ int err;
if (!test_bit(HCI_UP, &hdev->flags))
return -ENETDOWN;
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- buf[buf_size] = '\0';
- if (strtobool(buf, &enable))
- return -EINVAL;
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE))
return -EALREADY;
@@ -135,17 +131,12 @@ static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct hci_dev *hdev = file->private_data;
- char buf[32];
- size_t buf_size = min(count, (sizeof(buf)-1));
bool enable;
int err;
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- buf[buf_size] = '\0';
- if (strtobool(buf, &enable))
- return -EINVAL;
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
/* When the diagnostic flags are not persistent and the transport
* is not active or in user channel operation, then there is no need
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 418b76e557b0..0d8ab5b3c177 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -47,19 +47,15 @@ static ssize_t __name ## _write(struct file *file, \
size_t count, loff_t *ppos) \
{ \
struct hci_dev *hdev = file->private_data; \
- char buf[32]; \
- size_t buf_size = min(count, (sizeof(buf) - 1)); \
bool enable; \
+ int err; \
\
if (test_bit(HCI_UP, &hdev->flags)) \
return -EBUSY; \
\
- if (copy_from_user(buf, user_buf, buf_size)) \
- return -EFAULT; \
- \
- buf[buf_size] = '\0'; \
- if (strtobool(buf, &enable)) \
- return -EINVAL; \
+ err = kstrtobool_from_user(user_buf, count, &enable); \
+ if (err) \
+ return err; \
\
if (enable == test_bit(__quirk, &hdev->quirks)) \
return -EALREADY; \
@@ -658,19 +654,15 @@ static ssize_t force_static_address_write(struct file *file,
size_t count, loff_t *ppos)
{
struct hci_dev *hdev = file->private_data;
- char buf[32];
- size_t buf_size = min(count, (sizeof(buf)-1));
bool enable;
+ int err;
if (test_bit(HCI_UP, &hdev->flags))
return -EBUSY;
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- buf[buf_size] = '\0';
- if (strtobool(buf, &enable))
- return -EINVAL;
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
if (enable == hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR))
return -EALREADY;
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index a2ddae2f37d7..ae91e2d40056 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -3315,16 +3315,12 @@ static ssize_t force_bredr_smp_write(struct file *file,
size_t count, loff_t *ppos)
{
struct hci_dev *hdev = file->private_data;
- char buf[32];
- size_t buf_size = min(count, (sizeof(buf)-1));
bool enable;
+ int err;
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- buf[buf_size] = '\0';
- if (strtobool(buf, &enable))
- return -EINVAL;
+ err = kstrtobool_from_user(user_buf, count, &enable);
+ if (err)
+ return err;
if (enable == hci_dev_test_flag(hdev, HCI_FORCE_BREDR_SMP))
return -EALREADY;
--
2.17.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user()
2018-05-29 13:33 [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Andy Shevchenko
@ 2018-05-29 13:33 ` Andy Shevchenko
2018-05-30 6:16 ` Marcel Holtmann
2018-05-30 6:16 ` [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Marcel Holtmann
1 sibling, 1 reply; 4+ messages in thread
From: Andy Shevchenko @ 2018-05-29 13:33 UTC (permalink / raw)
To: Marcel Holtmann, Johan Hedberg, linux-bluetooth; +Cc: Andy Shevchenko
Re-use kstrtol_from_user() instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/bluetooth/btmrvl_debugfs.c | 24 +++---------------------
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
index 023d35e3c7a7..c4867576be00 100644
--- a/drivers/bluetooth/btmrvl_debugfs.c
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -35,15 +35,9 @@ static ssize_t btmrvl_hscfgcmd_write(struct file *file,
const char __user *ubuf, size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
- char buf[16];
long result, ret;
- memset(buf, 0, sizeof(buf));
-
- if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- ret = kstrtol(buf, 10, &result);
+ ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
@@ -81,15 +75,9 @@ static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
- char buf[16];
long result, ret;
- memset(buf, 0, sizeof(buf));
-
- if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- ret = kstrtol(buf, 10, &result);
+ ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
@@ -127,15 +115,9 @@ static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct btmrvl_private *priv = file->private_data;
- char buf[16];
long result, ret;
- memset(buf, 0, sizeof(buf));
-
- if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
- ret = kstrtol(buf, 10, &result);
+ ret = kstrtol_from_user(ubuf, count, 10, &result);
if (ret)
return ret;
--
2.17.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user()
2018-05-29 13:33 ` [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user() Andy Shevchenko
@ 2018-05-30 6:16 ` Marcel Holtmann
0 siblings, 0 replies; 4+ messages in thread
From: Marcel Holtmann @ 2018-05-30 6:16 UTC (permalink / raw)
To: Andy Shevchenko; +Cc: Johan Hedberg, linux-bluetooth
Hi Andy,
> Re-use kstrtol_from_user() instead of open coded variant.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> drivers/bluetooth/btmrvl_debugfs.c | 24 +++---------------------
> 1 file changed, 3 insertions(+), 21 deletions(-)
patch has been applied to bluetooth-next tree.
Regards
Marcel
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user()
2018-05-29 13:33 [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Andy Shevchenko
2018-05-29 13:33 ` [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user() Andy Shevchenko
@ 2018-05-30 6:16 ` Marcel Holtmann
1 sibling, 0 replies; 4+ messages in thread
From: Marcel Holtmann @ 2018-05-30 6:16 UTC (permalink / raw)
To: Andy Shevchenko; +Cc: Johan Hedberg, linux-bluetooth
Hi Andy,
> Re-use kstrtobool_from_user() instead of open coded variant.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
> net/bluetooth/hci_core.c | 23 +++++++----------------
> net/bluetooth/hci_debugfs.c | 24 ++++++++----------------
> net/bluetooth/smp.c | 12 ++++--------
> 3 files changed, 19 insertions(+), 40 deletions(-)
patch has been applied to bluetooth-next tree.
Regards
Marcel
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-05-30 6:16 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-05-29 13:33 [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Andy Shevchenko
2018-05-29 13:33 ` [PATCH v1 2/2] Bluetooth: btmrvl: Re-use kstrtol_from_user() Andy Shevchenko
2018-05-30 6:16 ` Marcel Holtmann
2018-05-30 6:16 ` [PATCH v1 1/2] Bluetooth: Re-use kstrtobool_from_user() Marcel Holtmann
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