diff mbox series

[v2] Bluetooth: Scrub MGMT cmd pending queue for consistency

Message ID 20220228173918.524733-1-brian.gix@intel.com (mailing list archive)
State Superseded
Headers show
Series [v2] Bluetooth: Scrub MGMT cmd pending queue for consistency | expand

Checks

Context Check Description
tedd_an/pre-ci_am success Success
tedd_an/checkpatch fail [v2] Bluetooth: Scrub MGMT cmd pending queue for consistency\ERROR:RETURN_PARENTHESES: return is not a function, parentheses are not required #319: FILE: net/bluetooth/mgmt.c:7986: + return (pending_find(MGMT_OP_SET_LE, hdev)); total: 1 errors, 0 warnings, 0 checks, 223 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. /github/workspace/src/12763596.patch has style problems, please review. NOTE: Ignored message types: UNKNOWN_COMMIT_ID NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS.
tedd_an/gitlint success Gitlint PASS
tedd_an/subjectprefix success PASS
tedd_an/buildkernel success Build Kernel PASS
tedd_an/buildkernel32 success Build Kernel32 PASS
tedd_an/incremental_build success Pass
tedd_an/testrunnersetup success Test Runner Setup PASS
tedd_an/testrunnerl2cap-tester success Total: 40, Passed: 40 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunnerbnep-tester success Total: 1, Passed: 1 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunnermgmt-tester success Total: 493, Passed: 493 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunnerrfcomm-tester success Total: 10, Passed: 10 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunnersco-tester success Total: 12, Passed: 12 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunnersmp-tester success Total: 8, Passed: 8 (100.0%), Failed: 0, Not Run: 0
tedd_an/testrunneruserchan-tester success Total: 4, Passed: 4 (100.0%), Failed: 0, Not Run: 0

Commit Message

Brian Gix Feb. 28, 2022, 5:39 p.m. UTC 
A number of places in the MGMT handlers we examine the command queue for
other commands (in progress but not yet complete) that will interact
with the process being performed. However, not all commands go into the
queue if one of:

1. There is no negative side effect of consecutive or redundent commands
2. The command is entirely perform "inline".

This change examines each "pending command" check, and if it is not
needed, deletes the check. Of the remaining pending command checks, we
make sure that the command is in the pending queue by using the
mgmt_pending_add/mgmt_pending_remove pair rather than the
mgmt_pending_new/mgmt_pending_free pair.

Signed-off-by: Brian Gix <brian.gix@intel.com>
---
 net/bluetooth/mgmt.c | 80 +++++++++++++++++++++++---------------------
 1 file changed, 42 insertions(+), 38 deletions(-)

Comments

bluez.test.bot@gmail.com Feb. 28, 2022, 6:19 p.m. UTC | #1 
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=618815

---Test result---

Test Summary:
CheckPatch                    FAIL      1.86 seconds
GitLint                       PASS      1.04 seconds
SubjectPrefix                 PASS      0.88 seconds
BuildKernel                   PASS      41.34 seconds
BuildKernel32                 PASS      34.81 seconds
Incremental Build with patchesPASS      48.61 seconds
TestRunner: Setup             PASS      614.96 seconds
TestRunner: l2cap-tester      PASS      17.24 seconds
TestRunner: bnep-tester       PASS      7.98 seconds
TestRunner: mgmt-tester       PASS      129.60 seconds
TestRunner: rfcomm-tester     PASS      10.36 seconds
TestRunner: sco-tester        PASS      10.00 seconds
TestRunner: smp-tester        PASS      9.84 seconds
TestRunner: userchan-tester   PASS      8.10 seconds

Details
##############################
Test: CheckPatch - FAIL - 1.86 seconds
Run checkpatch.pl script with rule in .checkpatch.conf
[v2] Bluetooth: Scrub MGMT cmd pending queue for consistency\ERROR:RETURN_PARENTHESES: return is not a function, parentheses are not required
#319: FILE: net/bluetooth/mgmt.c:7986:
+	return (pending_find(MGMT_OP_SET_LE, hdev));

total: 1 errors, 0 warnings, 0 checks, 223 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

/github/workspace/src/12763596.patch has style problems, please review.

NOTE: Ignored message types: UNKNOWN_COMMIT_ID

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.




---
Regards,
Linux Bluetooth
diff mbox series

Patch

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4b15b95e61e6..a563ce90931a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1219,8 +1219,16 @@  static int new_settings(struct hci_dev *hdev, struct sock *skip)
 
 static void mgmt_set_powered_complete(struct hci_dev *hdev, void *data, int err)
 {
-	struct mgmt_pending_cmd *cmd = data;
-	struct mgmt_mode *cp = cmd->param;
+	struct mgmt_pending_cmd *cmd;
+	struct mgmt_mode *cp;
+
+	/* Make sure cmd still outstanding. */
+	cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
+
+	if (!cmd)
+		return;
+
+	cp = cmd->param;
 
 	bt_dev_dbg(hdev, "err %d", err);
 
@@ -1244,7 +1252,7 @@  static void mgmt_set_powered_complete(struct hci_dev *hdev, void *data, int err)
 				mgmt_status(err));
 	}
 
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 }
 
 static int set_powered_sync(struct hci_dev *hdev, void *data)
@@ -1283,7 +1291,7 @@  static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_POWERED, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1292,6 +1300,9 @@  static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_powered_sync, cmd,
 				 mgmt_set_powered_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -1404,7 +1415,7 @@  static void mgmt_set_discoverable_complete(struct hci_dev *hdev, void *data,
 	new_settings(hdev, cmd->sk);
 
 done:
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 	hci_dev_unlock(hdev);
 }
 
@@ -1513,7 +1524,7 @@  static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1540,6 +1551,9 @@  static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_discoverable_sync, cmd,
 				 mgmt_set_discoverable_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -1548,12 +1562,16 @@  static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 static void mgmt_set_connectable_complete(struct hci_dev *hdev, void *data,
 					  int err)
 {
-	struct mgmt_pending_cmd *cmd = data;
+	struct mgmt_pending_cmd *cmd;
 
 	bt_dev_dbg(hdev, "err %d", err);
 
 	hci_dev_lock(hdev);
 
+	cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
+	if (!cmd)
+		goto done;
+
 	if (err) {
 		u8 mgmt_err = mgmt_status(err);
 		mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
@@ -1564,7 +1582,9 @@  static void mgmt_set_connectable_complete(struct hci_dev *hdev, void *data,
 	new_settings(hdev, cmd->sk);
 
 done:
-	mgmt_pending_free(cmd);
+	if (cmd)
+		mgmt_pending_remove(cmd);
+
 	hci_dev_unlock(hdev);
 }
 
@@ -1636,7 +1656,7 @@  static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -1656,6 +1676,9 @@  static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, set_connectable_sync, cmd,
 				 mgmt_set_connectable_complete);
 
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
 failed:
 	hci_dev_unlock(hdev);
 	return err;
@@ -3763,13 +3786,6 @@  static int set_wideband_speech(struct sock *sk, struct hci_dev *hdev,
 
 	hci_dev_lock(hdev);
 
-	if (pending_find(MGMT_OP_SET_WIDEBAND_SPEECH, hdev)) {
-		err = mgmt_cmd_status(sk, hdev->id,
-				      MGMT_OP_SET_WIDEBAND_SPEECH,
-				      MGMT_STATUS_BUSY);
-		goto unlock;
-	}
-
 	if (hdev_is_powered(hdev) &&
 	    !!cp->val != hci_dev_test_flag(hdev,
 					   HCI_WIDEBAND_SPEECH_ENABLED)) {
@@ -5040,12 +5056,6 @@  static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
 		goto unlock;
 	}
 
-	if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
-		err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
-				      MGMT_STATUS_BUSY);
-		goto unlock;
-	}
-
 	cmd = mgmt_pending_new(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
 	if (!cmd)
 		err = -ENOMEM;
@@ -5269,7 +5279,7 @@  static void start_discovery_complete(struct hci_dev *hdev, void *data, int err)
 
 	mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
 			  cmd->param, 1);
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 
 	hci_discovery_set_state(hdev, err ? DISCOVERY_STOPPED:
 				DISCOVERY_FINDING);
@@ -5331,7 +5341,7 @@  static int start_discovery_internal(struct sock *sk, struct hci_dev *hdev,
 	else
 		hdev->discovery.limited = false;
 
-	cmd = mgmt_pending_new(sk, op, hdev, data, len);
+	cmd = mgmt_pending_add(sk, op, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
@@ -5340,7 +5350,7 @@  static int start_discovery_internal(struct sock *sk, struct hci_dev *hdev,
 	err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
 				 start_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto failed;
 	}
 
@@ -5434,7 +5444,7 @@  static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
 		goto failed;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_START_SERVICE_DISCOVERY,
+	cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
 			       hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
@@ -5467,7 +5477,7 @@  static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
 	err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
 				 start_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto failed;
 	}
 
@@ -5503,7 +5513,7 @@  static void stop_discovery_complete(struct hci_dev *hdev, void *data, int err)
 
 	mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
 			  cmd->param, 1);
-	mgmt_pending_free(cmd);
+	mgmt_pending_remove(cmd);
 
 	if (!err)
 		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
@@ -5539,7 +5549,7 @@  static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto unlock;
 	}
 
-	cmd = mgmt_pending_new(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
+	cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto unlock;
@@ -5548,7 +5558,7 @@  static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 	err = hci_cmd_sync_queue(hdev, stop_discovery_sync, cmd,
 				 stop_discovery_complete);
 	if (err < 0) {
-		mgmt_pending_free(cmd);
+		mgmt_pending_remove(cmd);
 		goto unlock;
 	}
 
@@ -7973,11 +7983,7 @@  static bool requested_adv_flags_are_valid(struct hci_dev *hdev, u32 adv_flags)
 
 static bool adv_busy(struct hci_dev *hdev)
 {
-	return (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
-		pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
-		pending_find(MGMT_OP_SET_LE, hdev) ||
-		pending_find(MGMT_OP_ADD_EXT_ADV_PARAMS, hdev) ||
-		pending_find(MGMT_OP_ADD_EXT_ADV_DATA, hdev));
+	return (pending_find(MGMT_OP_SET_LE, hdev));
 }
 
 static void add_adv_complete(struct hci_dev *hdev, struct sock *sk, u8 instance,
@@ -8567,9 +8573,7 @@  static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
 		goto unlock;
 	}
 
-	if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
-	    pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
-	    pending_find(MGMT_OP_SET_LE, hdev)) {
+	if (pending_find(MGMT_OP_SET_LE, hdev)) {
 		err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
 				      MGMT_STATUS_BUSY);
 		goto unlock;