From: Emil Renner Berthing emil.renner.berthing@canonical.com

[ Upstream commit 8bc8824d30193eb7755043d5bb65fa7f0d11a595 ]

This adds the 4 PWM controlled green LEDs to the HiFive Unleashed device tree. The schematic doesn't specify any special function for the LEDs, so they're added here without any default triggers and named d1, d2, d3 and d4 just like in the schematic.

Signed-off-by: Emil Renner Berthing emil.renner.berthing@canonical.com Reviewed-by: Conor Dooley conor.dooley@microchip.com Tested-by: Conor Dooley conor.dooley@microchip.com Link: https://lore.kernel.org/r/20221012110928.352910-1-emil.renner.berthing@canon... Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../boot/dts/sifive/hifive-unleashed-a00.dts | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+)

diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts index 22f971e97161..2f4d677c9c4f 100644 --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts @@ -3,6 +3,8 @@

#include "fu540-c000.dtsi" #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/leds/common.h> +#include <dt-bindings/pwm/pwm.h>

/* Clock frequency (in Hz) of the PCB crystal for rtcclk */ #define RTCCLK_FREQ 1000000 @@ -46,6 +48,42 @@ gpio-restart { compatible = "gpio-restart"; gpios = <&gpio 10 GPIO_ACTIVE_LOW>; }; + + led-controller { + compatible = "pwm-leds"; + + led-d1 { + pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>; + active-low; + color = <LED_COLOR_ID_GREEN>; + max-brightness = <255>; + label = "d1"; + }; + + led-d2 { + pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>; + active-low; + color = <LED_COLOR_ID_GREEN>; + max-brightness = <255>; + label = "d2"; + }; + + led-d3 { + pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>; + active-low; + color = <LED_COLOR_ID_GREEN>; + max-brightness = <255>; + label = "d3"; + }; + + led-d4 { + pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>; + active-low; + color = <LED_COLOR_ID_GREEN>; + max-brightness = <255>; + label = "d4"; + }; + }; };

&uart0 {

From: "Jason A. Donenfeld" Jason@zx2c4.com

[ Upstream commit e6cb8769452e8236b52134e5cb4a18b8f5986932 ]

With char becoming unsigned by default, and with `char` alone being ambiguous and based on architecture, we get a warning when assigning the unchecked output of hex_to_bin() to that unsigned char. Mark `key` as a `u8`, which matches the struct's type, and then check each call to hex_to_bin() before casting.

Cc: Kalle Valo kvalo@kernel.org Cc: linux-wireless@vger.kernel.org Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20221024162843.535921-1-Jason@zx2c4.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/cisco/airo.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c index 65dd8cff1b01..fc19ecbc4c08 100644 --- a/drivers/net/wireless/cisco/airo.c +++ b/drivers/net/wireless/cisco/airo.c @@ -5233,7 +5233,7 @@ static int get_wep_tx_idx(struct airo_info *ai) return -1; }

-static int set_wep_key(struct airo_info *ai, u16 index, const char *key, +static int set_wep_key(struct airo_info *ai, u16 index, const u8 *key, u16 keylen, int perm, int lock) { static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 }; @@ -5284,7 +5284,7 @@ static void proc_wepkey_on_close(struct inode *inode, struct file *file) struct net_device *dev = PDE_DATA(inode); struct airo_info *ai = dev->ml_priv; int i, rc; - char key[16]; + u8 key[16]; u16 index = 0; int j = 0;

@@ -5312,12 +5312,22 @@ static void proc_wepkey_on_close(struct inode *inode, struct file *file) }

for (i = 0; i < 16*3 && data->wbuffer[i+j]; i++) { + int val; + + if (i % 3 == 2) + continue; + + val = hex_to_bin(data->wbuffer[i+j]); + if (val < 0) { + airo_print_err(ai->dev->name, "WebKey passed invalid key hex"); + return; + } switch(i%3) { case 0: - key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4; + key[i/3] = (u8)val << 4; break; case 1: - key[i/3] |= hex_to_bin(data->wbuffer[i+j]); + key[i/3] |= (u8)val; break; } }

From: "Tyler J. Stachecki" stachecki.tyler@gmail.com

[ Upstream commit 3a89b6dec9920026eaa90fe8457f4348d3388a98 ]

The 2.7.0 series of QCN9074's firmware requests 5 segments of memory instead of 3 (as in the 2.5.0 series).

The first segment (11M) is too large to be kalloc'd in one go on x86 and requires piecemeal 1MB allocations, as was the case with the prior public firmware (2.5.0, 15M).

Since f6f92968e1e5, ath11k will break the memory requests, but only if there were fewer than 3 segments requested by the firmware. It seems that 5 segments works fine and allows QCN9074 to boot on x86 with firmware 2.7.0, so change things accordingly.

Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.16

Signed-off-by: Tyler J. Stachecki stachecki.tyler@gmail.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20221022042728.43015-1-stachecki.tyler@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/qmi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/qmi.h b/drivers/net/wireless/ath/ath11k/qmi.h index 3d5930330703..25940b683ea4 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.h +++ b/drivers/net/wireless/ath/ath11k/qmi.h @@ -27,7 +27,7 @@ #define ATH11K_QMI_WLANFW_MAX_NUM_MEM_SEG_V01 52 #define ATH11K_QMI_CALDB_SIZE 0x480000 #define ATH11K_QMI_BDF_EXT_STR_LENGTH 0x20 -#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 3 +#define ATH11K_QMI_FW_MEM_REQ_SEGMENT_CNT 5

#define QMI_WLFW_REQUEST_MEM_IND_V01 0x0035 #define QMI_WLFW_FW_MEM_READY_IND_V01 0x0037

From: Anirudh Rayabharam anrayabh@linux.microsoft.com

[ Upstream commit 4ad1aa571214e8d6468a1806794d987b374b5a08 ]

Add a data structure to represent the reference TSC MSR similar to other MSRs. This simplifies the code for updating the MSR.

Signed-off-by: Anirudh Rayabharam anrayabh@linux.microsoft.com Reviewed-by: Michael Kelley mikelley@microsoft.com Link: https://lore.kernel.org/r/20221027095729.1676394-2-anrayabh@linux.microsoft.... Signed-off-by: Wei Liu wei.liu@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clocksource/hyperv_timer.c | 29 +++++++++++++++-------------- include/asm-generic/hyperv-tlfs.h | 9 +++++++++ 2 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index bb47610bbd1c..18de1f439ffd 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/acpi.h> +#include <linux/hyperv.h> #include <clocksource/hyperv_timer.h> #include <asm/hyperv-tlfs.h> #include <asm/mshyperv.h> @@ -395,25 +396,25 @@ static u64 notrace read_hv_sched_clock_tsc(void)

static void suspend_hv_clock_tsc(struct clocksource *arg) { - u64 tsc_msr; + union hv_reference_tsc_msr tsc_msr;

/* Disable the TSC page */ - tsc_msr = hv_get_register(HV_REGISTER_REFERENCE_TSC); - tsc_msr &= ~BIT_ULL(0); - hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr); + tsc_msr.as_uint64 = hv_get_register(HV_REGISTER_REFERENCE_TSC); + tsc_msr.enable = 0; + hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr.as_uint64); }

static void resume_hv_clock_tsc(struct clocksource *arg) { phys_addr_t phys_addr = virt_to_phys(&tsc_pg); - u64 tsc_msr; + union hv_reference_tsc_msr tsc_msr;

/* Re-enable the TSC page */ - tsc_msr = hv_get_register(HV_REGISTER_REFERENCE_TSC); - tsc_msr &= GENMASK_ULL(11, 0); - tsc_msr |= BIT_ULL(0) | (u64)phys_addr; - hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr); + tsc_msr.as_uint64 = hv_get_register(HV_REGISTER_REFERENCE_TSC); + tsc_msr.enable = 1; + tsc_msr.pfn = HVPFN_DOWN(phys_addr); + hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr.as_uint64); }

#ifdef HAVE_VDSO_CLOCKMODE_HVCLOCK @@ -495,7 +496,7 @@ static __always_inline void hv_setup_sched_clock(void *sched_clock) {}

static bool __init hv_init_tsc_clocksource(void) { - u64 tsc_msr; + union hv_reference_tsc_msr tsc_msr; phys_addr_t phys_addr;

if (!(ms_hyperv.features & HV_MSR_REFERENCE_TSC_AVAILABLE)) @@ -530,10 +531,10 @@ static bool __init hv_init_tsc_clocksource(void) * (which already has at least the low 12 bits set to zero since * it is page aligned). Also set the "enable" bit, which is bit 0. */ - tsc_msr = hv_get_register(HV_REGISTER_REFERENCE_TSC); - tsc_msr &= GENMASK_ULL(11, 0); - tsc_msr = tsc_msr | 0x1 | (u64)phys_addr; - hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr); + tsc_msr.as_uint64 = hv_get_register(HV_REGISTER_REFERENCE_TSC); + tsc_msr.enable = 1; + tsc_msr.pfn = HVPFN_DOWN(phys_addr); + hv_set_register(HV_REGISTER_REFERENCE_TSC, tsc_msr.as_uint64);

clocksource_register_hz(&hyperv_cs_tsc, NSEC_PER_SEC/100);

diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h index 56348a541c50..1f314389e2be 100644 --- a/include/asm-generic/hyperv-tlfs.h +++ b/include/asm-generic/hyperv-tlfs.h @@ -102,6 +102,15 @@ struct ms_hyperv_tsc_page { volatile s64 tsc_offset; } __packed;

+union hv_reference_tsc_msr { + u64 as_uint64; + struct { + u64 enable:1; + u64 reserved:11; + u64 pfn:52; + } __packed; +}; + /* * The guest OS needs to register the guest ID with the hypervisor. * The guest ID is a 64 bit entity and the structure of this ID is

From: Youlin Li liulin063@gmail.com

[ Upstream commit 475244f5e06beeda7b557d9dde46a5f439bf3379 ]

Add a test case to ensure that released pointer registers will not be leaked into the map.

Before fix:

./test_verifier 984 984/u reference tracking: try to leak released ptr reg FAIL Unexpected success to load! verification time 67 usec stack depth 4 processed 23 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 1 984/p reference tracking: try to leak released ptr reg OK Summary: 1 PASSED, 0 SKIPPED, 1 FAILED

After fix:

./test_verifier 984 984/u reference tracking: try to leak released ptr reg OK 984/p reference tracking: try to leak released ptr reg OK Summary: 2 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Youlin Li liulin063@gmail.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20221103093440.3161-2-liulin063@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../selftests/bpf/verifier/ref_tracking.c | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+)

diff --git a/tools/testing/selftests/bpf/verifier/ref_tracking.c b/tools/testing/selftests/bpf/verifier/ref_tracking.c index 3b6ee009c00b..4a768b130d61 100644 --- a/tools/testing/selftests/bpf/verifier/ref_tracking.c +++ b/tools/testing/selftests/bpf/verifier/ref_tracking.c @@ -905,3 +905,39 @@ .result_unpriv = REJECT, .errstr_unpriv = "unknown func", }, +{ + "reference tracking: try to leak released ptr reg", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_9, BPF_REG_0), + + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_MOV64_IMM(BPF_REG_2, 8), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_EMIT_CALL(BPF_FUNC_ringbuf_reserve), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), + + BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), + BPF_MOV64_IMM(BPF_REG_2, 0), + BPF_EMIT_CALL(BPF_FUNC_ringbuf_discard), + BPF_MOV64_IMM(BPF_REG_0, 0), + + BPF_STX_MEM(BPF_DW, BPF_REG_9, BPF_REG_8, 0), + BPF_EXIT_INSN() + }, + .fixup_map_array_48b = { 4 }, + .fixup_map_ringbuf = { 11 }, + .result = ACCEPT, + .result_unpriv = REJECT, + .errstr_unpriv = "R8 !read_ok" +},

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit f46acc1efd4b5846de9fa05f966e504f328f34a6 ]

The Dell G15 5515 has the WMI interface (and WMI call returns) expected by the nvidia-wmi-ec-backlight interface. But the backlight class device registered by the nvidia-wmi-ec-backlight driver does not actually work.

The amdgpu_bl0 native GPU backlight class device does actually work, add a backlight=native DMI quirk for this.

Reported-by: Iris pawel.js@protonmail.com Reviewed-by: Daniel Dadap ddadap@nvidia.com Signed-off-by: Hans de Goede hdegoede@redhat.com --- Changes in v2: - Add a comment that this needs to be revisited when dynamic-mux support gets added (suggested by: Daniel Dadap) Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/video_detect.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index b13713199ad9..8dfcb6b44936 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -564,6 +564,20 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx"), }, }, + /* + * Models which have nvidia-ec-wmi support, but should not use it. + * Note this indicates a likely firmware bug on these models and should + * be revisited if/when Linux gets support for dynamic mux mode. + */ + { + .callback = video_detect_force_native, + /* Dell G15 5515 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), + }, + }, + /* * Desktops which falsely report a backlight and which our heuristics * for this do not catch.

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 0df044b34bf33e7e35c32b3bf6747fde6279c162 ]

Add touchscreen info for the RCA Cambio W101 v2 2-in-1.

Link: https://github.com/onitake/gsl-firmware/discussions/193 Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20221025141131.509211-1-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/touchscreen_dmi.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c index c608078538a7..3d0790263fa7 100644 --- a/drivers/platform/x86/touchscreen_dmi.c +++ b/drivers/platform/x86/touchscreen_dmi.c @@ -773,6 +773,22 @@ static const struct ts_dmi_data predia_basic_data = { .properties = predia_basic_props, };

+static const struct property_entry rca_cambio_w101_v2_props[] = { + PROPERTY_ENTRY_U32("touchscreen-min-x", 4), + PROPERTY_ENTRY_U32("touchscreen-min-y", 20), + PROPERTY_ENTRY_U32("touchscreen-size-x", 1644), + PROPERTY_ENTRY_U32("touchscreen-size-y", 874), + PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"), + PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-rca-cambio-w101-v2.fw"), + PROPERTY_ENTRY_U32("silead,max-fingers", 10), + { } +}; + +static const struct ts_dmi_data rca_cambio_w101_v2_data = { + .acpi_name = "MSSL1680:00", + .properties = rca_cambio_w101_v2_props, +}; + static const struct property_entry rwc_nanote_p8_props[] = { PROPERTY_ENTRY_U32("touchscreen-min-y", 46), PROPERTY_ENTRY_U32("touchscreen-size-x", 1728), @@ -1394,6 +1410,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = { DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"), }, }, + { + /* RCA Cambio W101 v2 */ + /* https://github.com/onitake/gsl-firmware/discussions/193 */ + .driver_data = (void *)&rca_cambio_w101_v2_data, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "RCA"), + DMI_MATCH(DMI_PRODUCT_NAME, "W101SA23T1"), + }, + }, { /* RWC NANOTE P8 */ .driver_data = (void *)&rwc_nanote_p8_data,

From: Ivan Hu ivan.hu@canonical.com

[ Upstream commit a977ece5773b6746b814aac410da4776023db239 ]

Add INTC1076 (JasonLake), INTC1077 (MeteorLake) and INTC1078 (RaptorLake) devices IDs.

Signed-off-by: Ivan Hu ivan.hu@canonical.com Link: https://lore.kernel.org/r/20221102020548.5225-1-ivan.hu@canonical.com Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/intel/hid.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index d7d6782c40c2..4d1c78635114 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -27,6 +27,9 @@ static const struct acpi_device_id intel_hid_ids[] = { {"INTC1051", 0}, {"INTC1054", 0}, {"INTC1070", 0}, + {"INTC1076", 0}, + {"INTC1077", 0}, + {"INTC1078", 0}, {"", 0}, }; MODULE_DEVICE_TABLE(acpi, intel_hid_ids);

From: Bart Van Assche bvanassche@acm.org

[ Upstream commit ecb8c2580d37dbb641451049376d80c8afaa387f ]

From ZBC-1:

- RC BASIS = 0: The RETURNED LOGICAL BLOCK ADDRESS field indicates the highest LBA of a contiguous range of zones that are not sequential write required zones starting with the first zone.

- RC BASIS = 1: The RETURNED LOGICAL BLOCK ADDRESS field indicates the LBA of the last logical block on the logical unit.

The current scsi_debug READ CAPACITY response does not comply with the above if there are one or more sequential write required zones. SCSI initiators need a way to retrieve the largest valid LBA from SCSI devices. Reporting the largest valid LBA if there are one or more sequential zones requires to set the RC BASIS field in the READ CAPACITY response to one. Hence this patch.

Cc: Douglas Gilbert dgilbert@interlog.com Cc: Damien Le Moal damien.lemoal@opensource.wdc.com Suggested-by: Damien Le Moal damien.lemoal@opensource.wdc.com Signed-off-by: Bart Van Assche bvanassche@acm.org Link: https://lore.kernel.org/r/20221102193248.3177608-1-bvanassche@acm.org Reviewed-by: Damien Le Moal damien.lemoal@opensource.wdc.com Acked-by: Douglas Gilbert dgilbert@interlog.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/scsi_debug.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 747e1cbb7ec9..105a4babb3e4 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -1879,6 +1879,13 @@ static int resp_readcap16(struct scsi_cmnd *scp, arr[14] |= 0x40; }

+ /* + * Since the scsi_debug READ CAPACITY implementation always reports the + * total disk capacity, set RC BASIS = 1 for host-managed ZBC devices. + */ + if (devip->zmodel == BLK_ZONED_HM) + arr[12] |= 1 << 4; + arr[15] = sdebug_lowest_aligned & 0xff;

if (have_dif_prot) {

From: Yu Kuai yukuai3@huawei.com

[ Upstream commit f02be9002c480cd3ec0fcf184ad27cf531bd6ece ]

Out test found a following problem in kernel 5.10, and the same problem should exist in mainline:

BUG: kernel NULL pointer dereference, address: 0000000000000094 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 7 PID: 155 Comm: kworker/7:1 Not tainted 5.10.0-01932-g19e0ace2ca1d-dirty 4 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-b4 Workqueue: kthrotld blk_throtl_dispatch_work_fn RIP: 0010:bfq_bio_bfqg+0x52/0xc0 Code: 94 00 00 00 00 75 2e 48 8b 40 30 48 83 05 35 06 c8 0b 01 48 85 c0 74 3d 4b RSP: 0018:ffffc90001a1fba0 EFLAGS: 00010002 RAX: ffff888100d60400 RBX: ffff8881132e7000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffff888103580a18 RDI: ffff888103580a18 RBP: ffff8881132e7000 R08: 0000000000000000 R09: ffffc90001a1fe10 R10: 0000000000000a20 R11: 0000000000034320 R12: 0000000000000000 R13: ffff888103580a18 R14: ffff888114447000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88881fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000094 CR3: 0000000100cdb000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bfq_bic_update_cgroup+0x3c/0x350 ? ioc_create_icq+0x42/0x270 bfq_init_rq+0xfd/0x1060 bfq_insert_requests+0x20f/0x1cc0 ? ioc_create_icq+0x122/0x270 blk_mq_sched_insert_requests+0x86/0x1d0 blk_mq_flush_plug_list+0x193/0x2a0 blk_flush_plug_list+0x127/0x170 blk_finish_plug+0x31/0x50 blk_throtl_dispatch_work_fn+0x151/0x190 process_one_work+0x27c/0x5f0 worker_thread+0x28b/0x6b0 ? rescuer_thread+0x590/0x590 kthread+0x153/0x1b0 ? kthread_flush_work+0x170/0x170 ret_from_fork+0x1f/0x30 Modules linked in: CR2: 0000000000000094 ---[ end trace e2e59ac014314547 ]--- RIP: 0010:bfq_bio_bfqg+0x52/0xc0 Code: 94 00 00 00 00 75 2e 48 8b 40 30 48 83 05 35 06 c8 0b 01 48 85 c0 74 3d 4b RSP: 0018:ffffc90001a1fba0 EFLAGS: 00010002 RAX: ffff888100d60400 RBX: ffff8881132e7000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffff888103580a18 RDI: ffff888103580a18 RBP: ffff8881132e7000 R08: 0000000000000000 R09: ffffc90001a1fe10 R10: 0000000000000a20 R11: 0000000000034320 R12: 0000000000000000 R13: ffff888103580a18 R14: ffff888114447000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88881fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000094 CR3: 0000000100cdb000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Root cause is quite complex:

1) use bfq elevator for the test device. 2) create a cgroup CG 3) config blk throtl in CG

blkg_conf_prep blkg_create

4) create a thread T1 and issue async io in CG:

bio_init bio_associate_blkg ... submit_bio submit_bio_noacct blk_throtl_bio -> io is throttled // io submit is done

5) switch elevator:

bfq_exit_queue blkcg_deactivate_policy list_for_each_entry(blkg, &q->blkg_list, q_node) blkg->pd[] = NULL // bfq policy is removed

5) thread t1 exist, then remove the cgroup CG:

blkcg_unpin_online blkcg_destroy_blkgs blkg_destroy list_del_init(&blkg->q_node) // blkg is removed from queue list

6) switch elevator back to bfq

bfq_init_queue bfq_create_group_hierarchy blkcg_activate_policy list_for_each_entry_reverse(blkg, &q->blkg_list) // blkg is removed from list, hence bfq policy is still NULL

7) throttled io is dispatched to bfq:

bfq_insert_requests bfq_init_rq bfq_bic_update_cgroup bfq_bio_bfqg bfqg = blkg_to_bfqg(blkg) // bfqg is NULL because bfq policy is NULL

The problem is only possible in bfq because only bfq can be deactivated and activated while queue is online, while others can only be deactivated while the device is removed.

Fix the problem in bfq by checking if blkg is online before calling blkg_to_bfqg().

Signed-off-by: Yu Kuai yukuai3@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20221108103434.2853269-1-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/bfq-cgroup.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index e2e765a54fe9..a8d0b4c71b05 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -613,6 +613,10 @@ struct bfq_group *bfq_bio_bfqg(struct bfq_data *bfqd, struct bio *bio) struct bfq_group *bfqg;

while (blkg) { + if (!blkg->online) { + blkg = blkg->parent; + continue; + } bfqg = blkg_to_bfqg(blkg); if (bfqg->online) { bio_associate_blkg_from_css(bio, &blkg->blkcg->css);

From: Aleksandr Miloserdov a.miloserdov@yadro.com

[ Upstream commit becc4cac309dc867571f0080fde4426a6c2222e0 ]

Since model_number is allocated before it needs to be freed before kmemdump_nul.

Reviewed-by: Konstantin Shelekhin k.shelekhin@yadro.com Reviewed-by: Dmitriy Bogdanov d.bogdanov@yadro.com Signed-off-by: Aleksandr Miloserdov a.miloserdov@yadro.com Reviewed-by: Sagi Grimberg sagi@grimberg.me Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/target/configfs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c index cea30e4f5053..625038057a76 100644 --- a/drivers/nvme/target/configfs.c +++ b/drivers/nvme/target/configfs.c @@ -1189,6 +1189,7 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys, const char *page, size_t count) { int pos = 0, len; + char *val;

if (subsys->subsys_discovered) { pr_err("Can't set model number. %s is already assigned\n", @@ -1211,9 +1212,11 @@ static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys, return -EINVAL; }

- subsys->model_number = kmemdup_nul(page, len, GFP_KERNEL); - if (!subsys->model_number) + val = kmemdup_nul(page, len, GFP_KERNEL); + if (!val) return -ENOMEM; + kfree(subsys->model_number); + subsys->model_number = val; return count; }

From: Ai Chao aichao@kylinos.cn

[ Upstream commit bf990c10231937c0f51e5da5558e08cf5adc6a78 ]

For Hamedal C20, the current rate is different from the runtime rate, snd_usb_endpoint stop and close endpoint to resetting rate. if snd_usb_endpoint close the endpoint, sometimes usb will disconnect the device.

Signed-off-by: Ai Chao aichao@kylinos.cn Link: https://lore.kernel.org/r/20221110063452.295110-1-aichao@kylinos.cn Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/usb/endpoint.c | 3 ++- sound/usb/quirks.c | 2 ++ sound/usb/usbaudio.h | 3 +++ 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 3bbc227769d0..092350eb5f4e 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -887,7 +887,8 @@ void snd_usb_endpoint_close(struct snd_usb_audio *chip, usb_audio_dbg(chip, "Closing EP 0x%x (count %d)\n", ep->ep_num, ep->opened);

- if (!--ep->iface_ref->opened) + if (!--ep->iface_ref->opened && + !(chip->quirk_flags & QUIRK_FLAG_IFACE_SKIP_CLOSE)) endpoint_set_interface(chip, ep, false);

if (!--ep->opened) { diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 879d8b1f301c..2ae9ad993ff4 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1884,6 +1884,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_GENERIC_IMPLICIT_FB), DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */ QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x0525, 0xa4ad, /* Hamedal C20 usb camero */ + QUIRK_FLAG_IFACE_SKIP_CLOSE),

/* Vendor matches */ VENDOR_FLG(0x045e, /* MS Lifecam */ diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index 39c3c61a7e49..ec06f441e890 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -169,6 +169,8 @@ extern bool snd_usb_skip_validation; * Apply the generic implicit feedback sync mode (same as implicit_fb=1 option) * QUIRK_FLAG_SKIP_IMPLICIT_FB * Don't apply implicit feedback sync mode + * QUIRK_FLAG_IFACE_SKIP_CLOSE + * Don't closed interface during setting sample rate */

#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0) @@ -190,5 +192,6 @@ extern bool snd_usb_skip_validation; #define QUIRK_FLAG_SET_IFACE_FIRST (1U << 16) #define QUIRK_FLAG_GENERIC_IMPLICIT_FB (1U << 17) #define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18) +#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19)

#endif /* __USBAUDIO_H */

From: "Jason A. Donenfeld" Jason@zx2c4.com

[ Upstream commit 648060902aa302331b5d6e4f26d8ee0761d239ab ]

get_port_from_cmdline() returns an int, yet is assigned to a char, which is wrong in its own right, but also, with char becoming unsigned, this poses problems, because -1 is used as an error value. Further complicating things, fw_init_early_console() is only ever called with a -1 argument. Fix this up by removing the unused argument from fw_init_early_console() and treating port as a proper signed integer.

Cc: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/include/asm/fw/fw.h | 2 +- arch/mips/pic32/pic32mzda/early_console.c | 13 ++++++------- arch/mips/pic32/pic32mzda/init.c | 2 +- 3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/mips/include/asm/fw/fw.h b/arch/mips/include/asm/fw/fw.h index d0ef8b4892bb..d0494ce4b337 100644 --- a/arch/mips/include/asm/fw/fw.h +++ b/arch/mips/include/asm/fw/fw.h @@ -26,6 +26,6 @@ extern char *fw_getcmdline(void); extern void fw_meminit(void); extern char *fw_getenv(char *name); extern unsigned long fw_getenvl(char *name); -extern void fw_init_early_console(char port); +extern void fw_init_early_console(void);

#endif /* __ASM_FW_H_ */ diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c index 25372e62783b..3cd1b408fa1c 100644 --- a/arch/mips/pic32/pic32mzda/early_console.c +++ b/arch/mips/pic32/pic32mzda/early_console.c @@ -27,7 +27,7 @@ #define U_BRG(x) (UART_BASE(x) + 0x40)

static void __iomem *uart_base; -static char console_port = -1; +static int console_port = -1;

static int __init configure_uart_pins(int port) { @@ -47,7 +47,7 @@ static int __init configure_uart_pins(int port) return 0; }

-static void __init configure_uart(char port, int baud) +static void __init configure_uart(int port, int baud) { u32 pbclk;

@@ -60,7 +60,7 @@ static void __init configure_uart(char port, int baud) uart_base + PIC32_SET(U_STA(port))); }

-static void __init setup_early_console(char port, int baud) +static void __init setup_early_console(int port, int baud) { if (configure_uart_pins(port)) return; @@ -130,16 +130,15 @@ static int __init get_baud_from_cmdline(char *arch_cmdline) return baud; }

-void __init fw_init_early_console(char port) +void __init fw_init_early_console(void) { char *arch_cmdline = pic32_getcmdline(); - int baud = -1; + int baud, port;

uart_base = ioremap(PIC32_BASE_UART, 0xc00);

baud = get_baud_from_cmdline(arch_cmdline); - if (port == -1) - port = get_port_from_cmdline(arch_cmdline); + port = get_port_from_cmdline(arch_cmdline);

if (port == -1) port = EARLY_CONSOLE_PORT; diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c index 764f2d022fae..429830afff54 100644 --- a/arch/mips/pic32/pic32mzda/init.c +++ b/arch/mips/pic32/pic32mzda/init.c @@ -47,7 +47,7 @@ void __init plat_mem_setup(void) strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);

#ifdef CONFIG_EARLY_PRINTK - fw_init_early_console(-1); + fw_init_early_console(); #endif pic32_config_init(); }