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[PATCH 08/16] drm/amd/display: Add HP Elitebook 645 to the quirk list for eDP on DP1

by Roman.Li＠amd.com

From: Mario Limonciello <mario.limonciello(a)amd.com> [Why] HP Elitebook 645 has DP0 and DP1 swapped. [How] Add HP Elitebook 645 to DP0/DP1 swap quirk list. Cc: stable(a)vger.kernel.org Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3701 Reviewed-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Mario Limonciello <mario.limonciello(a)amd.com> Signed-off-by: Roman Li <roman.li(a)amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index b2bb2f92db00..8665bd3cb75a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1760,6 +1760,13 @@ static const struct dmi_system_id dmi_quirk_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Elite mt645 G8 Mobile Thin Client"), }, }, + { + .callback = edp0_on_dp1_callback, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 645 14 inch G11 Notebook PC"), + }, + }, { .callback = edp0_on_dp1_callback, .matches = { -- 2.34.1

3 months

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[PATCH 07/16] drm/amd/display: Add HP Probook 445 and 465 to the quirk list for eDP on DP1

by Roman.Li＠amd.com

From: Mario Limonciello <mario.limonciello(a)amd.com> [Why] HP Probook 445 and 465 has DP0 and DP1 swapped. [How] Add HP Probook 445 and 465 to DP0/DP1 swap quirk list. Cc: stable(a)vger.kernel.org Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3995 Reviewed-by: Alex Hung <alex.hung(a)amd.com> Signed-off-by: Mario Limonciello <mario.limonciello(a)amd.com> Signed-off-by: Roman Li <roman.li(a)amd.com> Tested-by: Anson Tsao <anson.tsao(a)amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 7cfb6fb89fca..b2bb2f92db00 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1767,6 +1767,20 @@ static const struct dmi_system_id dmi_quirk_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 665 16 inch G11 Notebook PC"), }, }, + { + .callback = edp0_on_dp1_callback, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook 445 14 inch G11 Notebook PC"), + }, + }, + { + .callback = edp0_on_dp1_callback, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook 465 16 inch G11 Notebook PC"), + }, + }, {} /* TODO: refactor this from a fixed table to a dynamic option */ }; -- 2.34.1

3 months

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[PATCH v6 4/4] ring-buffer: Use flush_kernel_vmap_range() over flush_dcache_folio()

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> Some architectures do not have data cache coherency between user and kernel space. For these architectures, the cache needs to be flushed on both the kernel and user addresses so that user space can see the updates the kernel has made. Instead of using flush_dcache_folio() and playing with virt_to_folio() within the call to that function, use flush_kernel_vmap_range() which takes the virtual address and does the work for those architectures that need it. This also fixes a bug where the flush of the reader page only flushed one page. If the sub-buffer order is 1 or more, where the sub-buffer size would be greater than a page, it would miss the rest of the sub-buffer content, as the "reader page" is not just a page, but the size of a sub-buffer. Link: https://lore.kernel.org/all/CAG48ez3w0my4Rwttbc5tEbNsme6tc0mrSN95thjXUFaJ3a… Cc: stable(a)vger.kernel.org Fixes: 117c39200d9d7 ("ring-buffer: Introducing ring-buffer mapping functions"); Suggested-by: Jann Horn <jannh(a)google.com> Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- kernel/trace/ring_buffer.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index f25966b3a1fc..d4b0f7b55cce 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -6016,7 +6016,7 @@ static void rb_update_meta_page(struct ring_buffer_per_cpu *cpu_buffer) meta->read = cpu_buffer->read; /* Some archs do not have data cache coherency between kernel and user-space */ - flush_dcache_folio(virt_to_folio(cpu_buffer->meta_page)); + flush_kernel_vmap_range(cpu_buffer->meta_page, PAGE_SIZE); } static void @@ -7319,7 +7319,8 @@ int ring_buffer_map_get_reader(struct trace_buffer *buffer, int cpu) out: /* Some archs do not have data cache coherency between kernel and user-space */ - flush_dcache_folio(virt_to_folio(cpu_buffer->reader_page->page)); + flush_kernel_vmap_range(cpu_buffer->reader_page->page, + buffer->subbuf_size + BUF_PAGE_HDR_SIZE); rb_update_meta_page(cpu_buffer); -- 2.47.2

3 months

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[PATCH] nilfs2: Add pointer check for nilfs_direct_propagate()

by Wentao Liang

In nilfs_direct_propagate(), the printer get from nilfs_direct_get_ptr() need to be checked to ensure it is not an invalid pointer. A proper implementation can be found in nilfs_direct_delete(). Add a value check and return -ENOENT when it is an invalid pointer. Fixes: 10ff885ba6f5 ("nilfs2: get rid of nilfs_direct uses") Cc: stable(a)vger.kernel.org # v2.6+ Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- fs/nilfs2/direct.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c index 893ab36824cc..ff1c9fe72bec 100644 --- a/fs/nilfs2/direct.c +++ b/fs/nilfs2/direct.c @@ -273,6 +273,9 @@ static int nilfs_direct_propagate(struct nilfs_bmap *bmap, dat = nilfs_bmap_get_dat(bmap); key = nilfs_bmap_data_get_key(bmap, bh); ptr = nilfs_direct_get_ptr(bmap, key); + if (ptr == NILFS_BMAP_INVALID_PTR) + return -ENOENT; + if (!buffer_nilfs_volatile(bh)) { oldreq.pr_entry_nr = ptr; newreq.pr_entry_nr = ptr; -- 2.42.0.windows.2

3 months

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[PATCH] rtlwifi: rtl892cu: Set limit for pwdb_all

by Wentao Liang

In _rtl92c_query_rxphystatus(), the return rtl_query_rxpwrpercentage() need to be checked. A proper implementation can be found in _rtl8723be_query_rxphystatus(). Add a value check and set the limit of pwdb_add as 100. Fixes: 666e8457fae4 ("rtlwifi: rtl8192cu: Add routine mac") Cc: stable(a)vger.kernel.org # v2.6+ Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c index a76f2dc8a977..e2145f284ec0 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c @@ -641,6 +641,9 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw, } } pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); + if (pwdb_all > 100) + pwdb_all = 100; + pstats->rx_pwdb_all = pwdb_all; pstats->recvsignalpower = rx_pwr_all; if (packet_match_bssid) { -- 2.42.0.windows.2

3 months

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[PATCH v4 1/1] usbnet:fix NPE during rx_complete

by Ying Lu

From: Ying Lu <luying1(a)xiaomi.com> Missing usbnet_going_away Check in Critical Path. The usb_submit_urb function lacks a usbnet_going_away validation, whereas __usbnet_queue_skb includes this check. This inconsistency creates a race condition where: A URB request may succeed, but the corresponding SKB data fails to be queued. Subsequent processes: (e.g., rx_complete → defer_bh → __skb_unlink(skb, list)) attempt to access skb->next, triggering a NULL pointer dereference (Kernel Panic). Fixes: 04e906839a05 ("usbnet: fix cyclical race on disconnect with work queue") Cc: stable(a)vger.kernel.org Signed-off-by: Ying Lu <luying1(a)xiaomi.com> --- drivers/net/usb/usbnet.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 44179f4e807f..5161bb5d824b 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -519,7 +519,8 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) netif_device_present (dev->net) && test_bit(EVENT_DEV_OPEN, &dev->flags) && !test_bit (EVENT_RX_HALT, &dev->flags) && - !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { + !test_bit (EVENT_DEV_ASLEEP, &dev->flags) && + !usbnet_going_away(dev)) { switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) { case -EPIPE: usbnet_defer_kevent (dev, EVENT_RX_HALT); @@ -540,8 +541,7 @@ static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags) tasklet_schedule (&dev->bh); break; case 0: - if (!usbnet_going_away(dev)) - __usbnet_queue_skb(&dev->rxq, skb, rx_start); + __usbnet_queue_skb(&dev->rxq, skb, rx_start); } } else { netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); -- 2.49.0

3 months

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[PATCH] Bluetooth: Revert vendor-specific ISO classification for

by Sean Rhodes

From ccabbdd36dacc3e03ed819b4b050ebcc1978e311 Mon Sep 17 00:00:00 2001 From: Sean Rhodes <sean(a)starlabs.systems> Date: Wed, 2 Apr 2025 09:05:17 +0100 Subject: [PATCH] Bluetooth: Revert vendor-specific ISO classification for non-offload cards This reverts commit f25b7fd36cc3a850e006aed686f5bbecd200de1b. The commit introduces vendor-specific classification of ISO data, but breaks Bluetooth functionality on certain Intel cards that do not support audio offload, such as the 9462. Affected devices are unable to discover new Bluetooth peripherals, and previously paired devices fail to reconnect. This issue does not affect newer cards (e.g., AX201+) that support audio offload. A conditional check using AOLD() could be used in the future to reintroduce this behavior only on supported hardware. Cc: Ying Hsu <yinghsu(a)chromium.org> Cc: Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Sean Rhodes <sean(a)starlabs.systems> --- drivers/bluetooth/btintel.c | 7 ++----- include/net/bluetooth/hci_core.h | 1 - net/bluetooth/hci_core.c | 16 ---------------- 3 files changed, 2 insertions(+), 22 deletions(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 48e2f400957b..2114fe8d527e 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -3588,15 +3588,12 @@ static int btintel_setup_combined(struct hci_dev *hdev) err = btintel_bootloader_setup(hdev, &ver); btintel_register_devcoredump_support(hdev); break; - case 0x18: /* GfP2 */ - case 0x1c: /* GaP */ - /* Re-classify packet type for controllers with LE audio */ - hdev->classify_pkt_type = btintel_classify_pkt_type; - fallthrough; case 0x17: + case 0x18: case 0x19: case 0x1b: case 0x1d: + case 0x1c: case 0x1e: case 0x1f: /* Display version information of TLV type */ diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 5115da34f881..d1a4436e4cc3 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -646,7 +646,6 @@ struct hci_dev { int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, struct bt_codec *codec, __u8 *vnd_len, __u8 **vnd_data); - u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); }; #define HCI_PHY_HANDLE(handle) (handle & 0xff) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 5eb0600bbd03..5b7515703ad1 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2868,31 +2868,15 @@ int hci_reset_dev(struct hci_dev *hdev) } EXPORT_SYMBOL(hci_reset_dev); -static u8 hci_dev_classify_pkt_type(struct hci_dev *hdev, struct sk_buff *skb) -{ - if (hdev->classify_pkt_type) - return hdev->classify_pkt_type(hdev, skb); - - return hci_skb_pkt_type(skb); -} - /* Receive frame from HCI drivers */ int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) { - u8 dev_pkt_type; - if (!hdev || (!test_bit(HCI_UP, &hdev->flags) && !test_bit(HCI_INIT, &hdev->flags))) { kfree_skb(skb); return -ENXIO; } - /* Check if the driver agree with packet type classification */ - dev_pkt_type = hci_dev_classify_pkt_type(hdev, skb); - if (hci_skb_pkt_type(skb) != dev_pkt_type) { - hci_skb_pkt_type(skb) = dev_pkt_type; - } - switch (hci_skb_pkt_type(skb)) { case HCI_EVENT_PKT: break; -- 2.45.2

3 months

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[PATCH v2] HID: wacom: fix shift OOB in kfifo allocation for zero pktlen

by Qasim Ijaz

During wacom_parse_and_register() the code calls wacom_devm_kfifo_alloc to allocate a fifo. During this operation it passes kfifo_alloc a fifo_size of 0. Kfifo attempts to round the size passed to it to the next power of 2 via roundup_pow_of_two (queue-type data structures do this to maintain efficiency of operations). However during this phase a problem arises when the roundup_pow_of_two() function utilises a shift exponent of fls_long(n-1), where n is the fifo_size. Since n is 0 in this case and n is also an unsigned long, doing n-1 causes unsigned integer wrap-around to occur making the fifo_size 4294967295. So the code effectively does fls_long(4294967295) which results in 64. Returning back to roundup_pow_of_two(), the code utilises a shift exponent of 64. When a shift exponent of 64 is used on a 64-bit type such as 1UL it results in a shift-out-of-bounds. The root cause of the issue seems to stem from insufficient validation of wacom_compute_pktlen(), since in this case the fifo_size comes from wacom_wac->features.pktlen. During wacom_parse_and_register() the wacom_compute_pktlen() function sets the pktlen as 0. To fix this, we should handle cases where wacom_compute_pktlen() results in 0. Reported-by: syzbot <syzbot+d5204cbbdd921f1f7cad(a)syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=d5204cbbdd921f1f7cad Fixes: 5e013ad20689 ("HID: wacom: Remove static WACOM_PKGLEN_MAX limit") Tested-by: Qasim Ijaz <qasdev00(a)gmail.com> Reviewed-by: Jason Gerecke <jason.gerecke(a)wacom.com> Cc: stable(a)vger.kernel.org Signed-off-by: Qasim Ijaz <qasdev00(a)gmail.com> --- v2: - Added Fixes tag as suggested by Jason Gerecke drivers/hid/wacom_sys.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 97393a3083ca..9b2f3dbca467 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2361,6 +2361,8 @@ static int wacom_parse_and_register(struct wacom *wacom, bool wireless) unsigned int connect_mask = HID_CONNECT_HIDRAW; features->pktlen = wacom_compute_pktlen(hdev); + if (!features->pktlen) + return -ENODEV; if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL)) return -ENOMEM; -- 2.39.5

3 months

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[PATCH] sound/pci: Add fixup for Star Labs laptops

by Sean Rhodes

From 427d5b100dee0c5c3a09e3e1ad095b06ebe33a8b Mon Sep 17 00:00:00 2001 From: Sean Rhodes <sean(a)starlabs.systems> Date: Wed, 2 Apr 2025 08:31:04 +0100 Subject: [PATCH] sound/pci: Add fixup for Star Labs laptops For all Star Labs boards that use Realtek cards, select ALC269_FIXUP_LIMIT_INT_MIC_BOOST to mitigate noise when the fans are active. Cc: Oder Chiou <oder_chiou(a)realtek.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Sean Rhodes <sean(a)starlabs.systems> --- sound/pci/hda/patch_realtek.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index b4fe681ec3cb..d75b09f962f9 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10921,10 +10921,12 @@ static const struct hda_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x10cf, 0x1629, "Lifebook U7x7", ALC255_FIXUP_LIFEBOOK_U7x7_HEADSET_MIC), SND_PCI_QUIRK(0x10cf, 0x1757, "Lifebook E752", ALC269_FIXUP_LIFEBOOK_HP_PIN), SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC), + SND_PCI_QUIRK(0x10ec, 0x10d0, "StarLabs Kaby Lake Laptop", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), SND_PCI_QUIRK(0x10ec, 0x10f2, "Intel Reference board", ALC700_FIXUP_INTEL_REFERENCE), SND_PCI_QUIRK(0x10ec, 0x118c, "Medion EE4254 MD62100", ALC256_FIXUP_MEDION_HEADSET_NO_PRESENCE), SND_PCI_QUIRK(0x10ec, 0x119e, "Positivo SU C1400", ALC269_FIXUP_ASPIRE_HEADSET_MIC), SND_PCI_QUIRK(0x10ec, 0x11bc, "VAIO VJFE-IL", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), + SND_PCI_QUIRK(0x10ec, 0x1200, "StarLabs Comet/Tiger Lake Laptop", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), SND_PCI_QUIRK(0x10ec, 0x1230, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK), SND_PCI_QUIRK(0x10ec, 0x124c, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK), SND_PCI_QUIRK(0x10ec, 0x1252, "Intel Reference board", ALC295_FIXUP_CHROME_BOOK), @@ -11238,6 +11240,8 @@ static const struct hda_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", ALC256_FIXUP_ASUS_HEADSET_MIC), SND_PCI_QUIRK(0x1d72, 0x1945, "Redmi G", ALC256_FIXUP_ASUS_HEADSET_MIC), SND_PCI_QUIRK(0x1d72, 0x1947, "RedmiBook Air", ALC255_FIXUP_XIAOMI_HEADSET_MIC), + SND_PCI_QUIRK(0x1e50, 0x7007, "StarLabs Alder Lake Laptop", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), + SND_PCI_QUIRK(0x1e50, 0x7038, "StarLabs Meteor Lake Laptop",ALC269_FIXUP_LIMIT_INT_MIC_BOOST), SND_PCI_QUIRK(0x1f66, 0x0105, "Ayaneo Portable Game Player", ALC287_FIXUP_CS35L41_I2C_2), SND_PCI_QUIRK(0x2014, 0x800a, "Positivo ARN50", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), SND_PCI_QUIRK(0x2782, 0x0214, "VAIO VJFE-CL", ALC269_FIXUP_LIMIT_INT_MIC_BOOST), -- 2.45.2

3 months

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Request for backporting c4af66a95aa3 ("cgroup/rstat: Fix forceidle time in cpu.stat")

by Tejun Heo

Hello, c4af66a95aa3 ("cgroup/rstat: Fix forceidle time in cpu.stat") fixes b824766504e4 ("cgroup/rstat: add force idle show helper") and should be backported to v6.11+ but I forgot to add the tag and the patch is currently queued in cgroup/for-6.15. Once the cgroup pull request is merged, can you please include the commit in -stable backports? Thanks. -- tejun

3 months

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