[PATCH] Bluetooth: Use sizeof(*pointer) instead of sizeof(type)

[PATCH] Bluetooth: Use sizeof(*pointer) instead of sizeof(type)

[Erick Archer]

It is preferred to use sizeof(*pointer) instead of sizeof(type)
due to the type of the variable can change and one needs not
change the former (unlike the latter). This patch has no effect
on runtime behavior.

Signed-off-by: Erick Archer <erick.archer@outlook.com>
---
 drivers/bluetooth/btrtl.c     | 2 +-
 drivers/bluetooth/hci_ldisc.c | 2 +-
 drivers/bluetooth/hci_qca.c   | 5 ++---
 drivers/bluetooth/hci_vhci.c  | 2 +-
 4 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 4f1e37b4f780..f2f37143c454 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -811,7 +811,7 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 	struct sk_buff *skb;
 	struct hci_rp_read_local_version *rp;
 
-	dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL);
+	dl_cmd = kmalloc(sizeof(*dl_cmd), GFP_KERNEL);
 	if (!dl_cmd)
 		return -ENOMEM;
 
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 17a2f158a0df..30192bb08354 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -488,7 +488,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
 	if (tty->ops->write == NULL)
 		return -EOPNOTSUPP;
 
-	hu = kzalloc(sizeof(struct hci_uart), GFP_KERNEL);
+	hu = kzalloc(sizeof(*hu), GFP_KERNEL);
 	if (!hu) {
 		BT_ERR("Can't allocate control structure");
 		return -ENFILE;
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 0c9c9ee56592..384a2bbbf303 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -569,7 +569,7 @@ static int qca_open(struct hci_uart *hu)
 	if (!hci_uart_has_flow_control(hu))
 		return -EOPNOTSUPP;
 
-	qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);
+	qca = kzalloc(sizeof(*qca), GFP_KERNEL);
 	if (!qca)
 		return -ENOMEM;
 
@@ -1040,8 +1040,7 @@ static void qca_controller_memdump(struct work_struct *work)
 		}
 
 		if (!qca_memdump) {
-			qca_memdump = kzalloc(sizeof(struct qca_memdump_info),
-					      GFP_ATOMIC);
+			qca_memdump = kzalloc(sizeof(*qca_memdump), GFP_ATOMIC);
 			if (!qca_memdump) {
 				mutex_unlock(&qca->hci_memdump_lock);
 				return;
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 28750a40f0ed..c4046f8f1985 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -633,7 +633,7 @@ static int vhci_open(struct inode *inode, struct file *file)
 {
 	struct vhci_data *data;
 
-	data = kzalloc(sizeof(struct vhci_data), GFP_KERNEL);
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-- 
2.25.1

RE: Bluetooth: Use sizeof(*pointer) instead of sizeof(type)

[bluez.test.bot]

[-- Attachment #1: Type: text/plain, Size: 2578 bytes --]

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=855756

---Test result---

Test Summary:
CheckPatch                    PASS      1.25 seconds
GitLint                       PASS      0.34 seconds
SubjectPrefix                 PASS      0.13 seconds
BuildKernel                   PASS      31.68 seconds
CheckAllWarning               PASS      34.92 seconds
CheckSparse                   PASS      40.10 seconds
CheckSmatch                   FAIL      36.75 seconds
BuildKernel32                 PASS      31.00 seconds
TestRunnerSetup               PASS      552.81 seconds
TestRunner_l2cap-tester       PASS      18.88 seconds
TestRunner_iso-tester         FAIL      32.64 seconds
TestRunner_bnep-tester        PASS      5.18 seconds
TestRunner_mgmt-tester        PASS      114.80 seconds
TestRunner_rfcomm-tester      PASS      7.70 seconds
TestRunner_sco-tester         PASS      15.39 seconds
TestRunner_ioctl-tester       PASS      8.17 seconds
TestRunner_mesh-tester        PASS      6.23 seconds
TestRunner_smp-tester         PASS      7.17 seconds
TestRunner_userchan-tester    PASS      5.27 seconds
IncrementalBuild              PASS      29.54 seconds

Details
##############################
Test: CheckSmatch - FAIL
Desc: Run smatch tool with source
Output:

Segmentation fault (core dumped)
make[4]: *** [scripts/Makefile.build:244: net/bluetooth/hci_core.o] Error 139
make[4]: *** Deleting file 'net/bluetooth/hci_core.o'
make[3]: *** [scripts/Makefile.build:485: net/bluetooth] Error 2
make[2]: *** [scripts/Makefile.build:485: net] Error 2
make[2]: *** Waiting for unfinished jobs....
Segmentation fault (core dumped)
make[4]: *** [scripts/Makefile.build:244: drivers/bluetooth/bcm203x.o] Error 139
make[4]: *** Deleting file 'drivers/bluetooth/bcm203x.o'
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [scripts/Makefile.build:485: drivers/bluetooth] Error 2
make[2]: *** [scripts/Makefile.build:485: drivers] Error 2
make[1]: *** [/github/workspace/src/src/Makefile:1919: .] Error 2
make: *** [Makefile:240: __sub-make] Error 2
##############################
Test: TestRunner_iso-tester - FAIL
Desc: Run iso-tester with test-runner
Output:
Total: 122, Passed: 117 (95.9%), Failed: 1, Not Run: 4

Failed Test Cases
ISO Connect2 Suspend - Success                       Failed       4.230 seconds


---
Regards,
Linux Bluetooth

Re: [PATCH] Bluetooth: Use sizeof(*pointer) instead of sizeof(type)

[patchwork-bot+bluetooth]

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:

On Fri, 24 May 2024 19:11:51 +0200 you wrote:
> It is preferred to use sizeof(*pointer) instead of sizeof(type)
> due to the type of the variable can change and one needs not
> change the former (unlike the latter). This patch has no effect
> on runtime behavior.
> 
> Signed-off-by: Erick Archer <erick.archer@outlook.com>
> 
> [...]

Here is the summary with links:
  - Bluetooth: Use sizeof(*pointer) instead of sizeof(type)
    https://git.kernel.org/bluetooth/bluetooth-next/c/3c376f35eb13

You are awesome, thank you!
-- 
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