From: Nathan Lynch nathanl@linux.ibm.com
[ Upstream commit 6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4 ]
It's unsafe to use rtas_busy_delay() to handle a busy status from the ibm,os-term RTAS function in rtas_os_term():
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:618 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0 preempt_count: 2, expected: 0 CPU: 7 PID: 1 Comm: swapper/0 Tainted: G D 6.0.0-rc5-02182-gf8553a572277-dirty #9 Call Trace: [c000000007b8f000] [c000000001337110] dump_stack_lvl+0xb4/0x110 (unreliable) [c000000007b8f040] [c0000000002440e4] __might_resched+0x394/0x3c0 [c000000007b8f0e0] [c00000000004f680] rtas_busy_delay+0x120/0x1b0 [c000000007b8f100] [c000000000052d04] rtas_os_term+0xb8/0xf4 [c000000007b8f180] [c0000000001150fc] pseries_panic+0x50/0x68 [c000000007b8f1f0] [c000000000036354] ppc_panic_platform_handler+0x34/0x50 [c000000007b8f210] [c0000000002303c4] notifier_call_chain+0xd4/0x1c0 [c000000007b8f2b0] [c0000000002306cc] atomic_notifier_call_chain+0xac/0x1c0 [c000000007b8f2f0] [c0000000001d62b8] panic+0x228/0x4d0 [c000000007b8f390] [c0000000001e573c] do_exit+0x140c/0x1420 [c000000007b8f480] [c0000000001e586c] make_task_dead+0xdc/0x200
Use rtas_busy_delay_time() instead, which signals without side effects whether to attempt the ibm,os-term RTAS call again.
Signed-off-by: Nathan Lynch nathanl@linux.ibm.com Reviewed-by: Nicholas Piggin npiggin@gmail.com Reviewed-by: Andrew Donnellan ajd@linux.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20221118150751.469393-5-nathanl@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/rtas.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 641f3e4c3380..9a77778bd24a 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -733,10 +733,15 @@ void rtas_os_term(char *str)
snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str);
+ /* + * Keep calling as long as RTAS returns a "try again" status, + * but don't use rtas_busy_delay(), which potentially + * schedules. + */ do { status = rtas_call(rtas_token("ibm,os-term"), 1, 1, NULL, __pa(rtas_os_term_buf)); - } while (rtas_busy_delay(status)); + } while (rtas_busy_delay_time(status));
if (status != 0) printk(KERN_EMERG "ibm,os-term call failed %d\n", status);
From: Marc Zyngier maz@kernel.org
[ Upstream commit 4545c6a3d6ba71747eaa984c338ddd745e56e23f ]
Since 2f2940d16823 ("genirq/msi: Remove filter from msi_free_descs_free_range()"), the core MSI code relies on the msi_desc->irq field to have been cleared before the descriptor can be freed, as it indicates that there is no association with a device anymore.
The irq domain code provides this guarantee, and so does s390, which is one of the two architectures not using irq domains for MSIs.
Powerpc, however, is missing this particular requirements, leading in a splat and leaked MSI descriptors.
Adding the now required irq reset to the handful of powerpc backends that implement MSIs fixes that particular problem.
Reported-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/70dab88e-6119-0c12-7c6a-61bcbe239f66@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/platforms/cell/axon_msi.c | 1 + arch/powerpc/platforms/pasemi/msi.c | 1 + arch/powerpc/sysdev/fsl_msi.c | 1 + arch/powerpc/sysdev/mpic_u3msi.c | 1 + arch/powerpc/sysdev/ppc4xx_hsta_msi.c | 1 + 5 files changed, 5 insertions(+)
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 8b55c5f19d4c..f78dc043f370 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -298,6 +298,7 @@ static void axon_msi_teardown_msi_irqs(struct pci_dev *dev)
irq_set_msi_desc(entry->irq, NULL); irq_dispose_mapping(entry->irq); + entry->irq = 0; } }
diff --git a/arch/powerpc/platforms/pasemi/msi.c b/arch/powerpc/platforms/pasemi/msi.c index d9cd510c8865..6e54377663db 100644 --- a/arch/powerpc/platforms/pasemi/msi.c +++ b/arch/powerpc/platforms/pasemi/msi.c @@ -74,6 +74,7 @@ static void pasemi_msi_teardown_msi_irqs(struct pci_dev *pdev) hwirq = virq_to_hw(entry->irq); irq_set_msi_desc(entry->irq, NULL); irq_dispose_mapping(entry->irq); + entry->irq = 0; msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap, hwirq, ALLOC_CHUNK); }
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index 8a244828782e..aa9dd3a92f2a 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -137,6 +137,7 @@ static void fsl_teardown_msi_irqs(struct pci_dev *pdev) msi_data = irq_get_chip_data(entry->irq); irq_set_msi_desc(entry->irq, NULL); irq_dispose_mapping(entry->irq); + entry->irq = 0; msi_bitmap_free_hwirqs(&msi_data->bitmap, hwirq, 1); }
diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c index cfc1c57d760f..26db91c8feff 100644 --- a/arch/powerpc/sysdev/mpic_u3msi.c +++ b/arch/powerpc/sysdev/mpic_u3msi.c @@ -116,6 +116,7 @@ static void u3msi_teardown_msi_irqs(struct pci_dev *pdev) hwirq = virq_to_hw(entry->irq); irq_set_msi_desc(entry->irq, NULL); irq_dispose_mapping(entry->irq); + entry->irq = 0; msi_bitmap_free_hwirqs(&msi_mpic->msi_bitmap, hwirq, 1); }
diff --git a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c index 9926ad67af76..ac5fbb2492aa 100644 --- a/arch/powerpc/sysdev/ppc4xx_hsta_msi.c +++ b/arch/powerpc/sysdev/ppc4xx_hsta_msi.c @@ -121,6 +121,7 @@ static void hsta_teardown_msi_irqs(struct pci_dev *dev) msi_bitmap_free_hwirqs(&ppc4xx_hsta_msi.bmp, irq, 1); pr_debug("%s: Teardown IRQ %u (index %u)\n", __func__, entry->irq, irq); + entry->irq = 0; } }
From: Terry Junge linuxhid@cosmicgizmosystems.com
[ Upstream commit 3d57f36c89d8ba32b2c312f397a37fd1a2dc7cfc ]
I no longer work for Plantronics (aka Poly, aka HP) and do not have access to the headsets in order to test. However, as noted by Maxim, the other 32xx models that share the same base code set as the 3220 would need the same quirk. This patch adds the PIDs for the rest of the Blackwire 32XX product family that require the quirk.
Plantronics Blackwire 3210 Series (047f:c055) Plantronics Blackwire 3215 Series (047f:c057) Plantronics Blackwire 3225 Series (047f:c058)
Quote from previous patch by Maxim Mikityanskiy Plantronics Blackwire 3220 Series (047f:c056) sends HID reports twice for each volume key press. This patch adds a quirk to hid-plantronics for this product ID, which will ignore the second volume key press if it happens within 5 ms from the last one that was handled.
The patch was tested on the mentioned model only, it shouldn't affect other models, however, this quirk might be needed for them too. Auto-repeat (when a key is held pressed) is not affected, because the rate is about 3 times per second, which is far less frequent than once in 5 ms. End quote
Signed-off-by: Terry Junge linuxhid@cosmicgizmosystems.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-ids.h | 3 +++ drivers/hid/hid-plantronics.c | 9 +++++++++ 2 files changed, 12 insertions(+)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 1f641870d860..4d69551dbc52 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -816,7 +816,10 @@ #define USB_DEVICE_ID_ORTEK_WKB2000 0x2000
#define USB_VENDOR_ID_PLANTRONICS 0x047f +#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3210_SERIES 0xc055 #define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES 0xc056 +#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES 0xc057 +#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES 0xc058
#define USB_VENDOR_ID_PANASONIC 0x04da #define USB_DEVICE_ID_PANABOARD_UBT780 0x1044 diff --git a/drivers/hid/hid-plantronics.c b/drivers/hid/hid-plantronics.c index 460711c1124a..3b75cadd543f 100644 --- a/drivers/hid/hid-plantronics.c +++ b/drivers/hid/hid-plantronics.c @@ -201,9 +201,18 @@ static int plantronics_probe(struct hid_device *hdev, }
static const struct hid_device_id plantronics_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, + USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3210_SERIES), + .driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS }, { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES), .driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS }, + { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, + USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3215_SERIES), + .driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS }, + { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, + USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3225_SERIES), + .driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS }, { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) }, { } };
linux-stable-mirror@lists.linaro.org
-
Sasha Levin