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Date: Sat, 7 Nov 2020 17:21:52 +0000
From: Taehee Yoo <ap420073@...il.com>
To: davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org
Cc: ap420073@...il.com, David.Laight@...lab.com,
johannes@...solutions.net, nstange@...e.de, derosier@...il.com,
kvalo@...eaurora.org, linux-wireless@...r.kernel.org,
wil6210@....qualcomm.com, b43-dev@...ts.infradead.org,
linux-bluetooth@...r.kernel.org, michael.hennerich@...log.com,
linux-wpan@...r.kernel.org, stefan@...enfreihafen.org,
inaky.perez-gonzalez@...el.com, linux-wimax@...el.com,
emmanuel.grumbach@...el.com, luciano.coelho@...el.com,
stf_xl@...pl, pkshih@...ltek.com, ath11k@...ts.infradead.org,
ath10k@...ts.infradead.org, wcn36xx@...ts.infradead.org,
merez@...eaurora.org, pizza@...ftnet.org,
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jukka.rissanen@...ux.intel.com, arend.vanspriel@...adcom.com,
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chung-hsien.hsu@...ineon.com, wright.feng@...ineon.com,
chi-hsien.lin@...ineon.com
Subject: [PATCH net v2 21/21] Bluetooth: set .owner to THIS_MODULE
If THIS_MODULE is not set, the module would be removed while debugfs is
being used.
It eventually makes kernel panic.
Fixes: 4b4148e9acc1 ("Bluetooth: Add support for setting DUT mode")
Fixes: 4b4113d6dbdb ("Bluetooth: Add debugfs entry for setting vendor diagnostic mode")
Fixes: 300acfdec916 ("Bluetooth: Introduce force_bredr_smp debugfs option for testing")
Fixes: 64dd374eac15 ("Bluetooth: Export SMP selftest result in debugfs")
Fixes: 0886aea6acd2 ("Bluetooth: Expose debug keys usage setting via debugfs")
Fixes: 134c2a89af22 ("Bluetooth: Add debugfs entry to show Secure Connections Only mode")
Fixes: b55d1abf568c ("Bluetooth: Expose quirks through debugfs")
Fixes: 6e07231a80de ("Bluetooth: Expose Secure Simple Pairing debug mode setting in debugfs")
Fixes: ac345813c4ac ("Bluetooth: Expose current identity information in debugfs")
Fixes: c2aa30db744d ("Bluetooth: debugfs option to unset MITM flag")
Fixes: 6b8d4a6a0314 ("Bluetooth: 6LoWPAN: Use connected oriented channel instead of fixed one")
Fixes: 6de50f9fdb60 ("Bluetooth: Export ECDH selftest result in debugfs")
Signed-off-by: Taehee Yoo <ap420073@...il.com>
---
v1 -> v2:
- Change headline
- Squash patches into per-driver/subsystem
net/bluetooth/6lowpan.c | 1 +
net/bluetooth/hci_core.c | 2 ++
net/bluetooth/hci_debugfs.c | 6 ++++++
net/bluetooth/selftest.c | 1 +
net/bluetooth/smp.c | 2 ++
5 files changed, 12 insertions(+)
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index cff4944d5b66..0936184f0813 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -1214,6 +1214,7 @@ static const struct file_operations lowpan_control_fops = {
.write = lowpan_control_write,
.llseek = seq_lseek,
.release = single_release,
+ .owner = THIS_MODULE,
};
static void disconnect_devices(void)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 502552d6e9af..dba8506202ff 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -116,6 +116,7 @@ static const struct file_operations dut_mode_fops = {
.read = dut_mode_read,
.write = dut_mode_write,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static ssize_t vendor_diag_read(struct file *file, char __user *user_buf,
@@ -172,6 +173,7 @@ static const struct file_operations vendor_diag_fops = {
.read = vendor_diag_read,
.write = vendor_diag_write,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static void hci_debugfs_create_basic(struct hci_dev *hdev)
diff --git a/net/bluetooth/hci_debugfs.c b/net/bluetooth/hci_debugfs.c
index 5e8af2658e44..c9a074da16dd 100644
--- a/net/bluetooth/hci_debugfs.c
+++ b/net/bluetooth/hci_debugfs.c
@@ -71,6 +71,7 @@ static const struct file_operations __name ## _fops = { \
.read = __name ## _read, \
.write = __name ## _write, \
.llseek = default_llseek, \
+ .owner = THIS_MODULE, \
} \
#define DEFINE_INFO_ATTRIBUTE(__name, __field) \
@@ -284,6 +285,7 @@ static const struct file_operations use_debug_keys_fops = {
.open = simple_open,
.read = use_debug_keys_read,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf,
@@ -302,6 +304,7 @@ static const struct file_operations sc_only_mode_fops = {
.open = simple_open,
.read = sc_only_mode_read,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
@@ -438,6 +441,7 @@ static const struct file_operations ssp_debug_mode_fops = {
.open = simple_open,
.read = ssp_debug_mode_read,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static int auto_accept_delay_set(void *data, u64 val)
@@ -726,6 +730,7 @@ static const struct file_operations force_static_address_fops = {
.read = force_static_address_read,
.write = force_static_address_write,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static int white_list_show(struct seq_file *f, void *ptr)
@@ -1117,6 +1122,7 @@ static const struct file_operations force_no_mitm_fops = {
.read = force_no_mitm_read,
.write = force_no_mitm_write,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter,
diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c
index f71c6fa65fb3..445ea247061b 100644
--- a/net/bluetooth/selftest.c
+++ b/net/bluetooth/selftest.c
@@ -194,6 +194,7 @@ static const struct file_operations test_ecdh_fops = {
.open = simple_open,
.read = test_ecdh_read,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static int __init test_ecdh(void)
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index bf4bef13d935..3b91f927aab5 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -3407,6 +3407,7 @@ static const struct file_operations force_bredr_smp_fops = {
.read = force_bredr_smp_read,
.write = force_bredr_smp_write,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
int smp_register(struct hci_dev *hdev)
@@ -3751,6 +3752,7 @@ static const struct file_operations test_smp_fops = {
.open = simple_open,
.read = test_smp_read,
.llseek = default_llseek,
+ .owner = THIS_MODULE,
};
static int __init run_selftests(struct crypto_shash *tfm_cmac,
--
2.17.1
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