June 2023 - Linux-stable-mirror

[PATCHv2 2/3] x86/tdx: Fix race between set_memory_encrypted() and load_unaligned_zeropad()

by Kirill A. Shutemov

Touching privately mapped GPA that is not properly converted to private with MapGPA and accepted leads to unrecoverable exit to VMM. load_unaligned_zeropad() can touch memory that is not owned by the caller, but just happened to next after the owned memory. This load_unaligned_zeropad() behaviour makes it important when kernel asks VMM to convert a GPA from shared to private or back. Kernel must never have a page mapped into direct mapping (and aliases) as private when the GPA is already converted to shared or when GPA is not yet converted to private. guest.enc_status_change_prepare() called before adjusting direct mapping and therefore it is responsible for converting the memory to private. guest.enc_status_change_finish() called after adjusting direct mapping and it converts the memory to shared. It is okay to have a shared mapping of memory that is not converted properly. handle_mmio() knows how to deal with load_unaligned_zeropad() stepping on it. Signed-off-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Fixes: 7dbde7631629 ("x86/mm/cpa: Add support for TDX shared memory") Cc: stable(a)vger.kernel.org --- arch/x86/coco/tdx/tdx.c | 56 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 53 insertions(+), 3 deletions(-) diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c index e146b599260f..59cc13e41aa6 100644 --- a/arch/x86/coco/tdx/tdx.c +++ b/arch/x86/coco/tdx/tdx.c @@ -840,6 +840,30 @@ static bool tdx_enc_status_changed(unsigned long vaddr, int numpages, bool enc) return true; } +static bool tdx_enc_status_change_prepare(unsigned long vaddr, int numpages, + bool enc) +{ + /* + * Only handle shared->private conversion here. + * See the comment in tdx_early_init(). + */ + if (enc) + return tdx_enc_status_changed(vaddr, numpages, enc); + return true; +} + +static bool tdx_enc_status_change_finish(unsigned long vaddr, int numpages, + bool enc) +{ + /* + * Only handle private->shared conversion here. + * See the comment in tdx_early_init(). + */ + if (!enc) + return tdx_enc_status_changed(vaddr, numpages, enc); + return true; +} + void __init tdx_early_init(void) { u64 cc_mask; @@ -867,9 +891,35 @@ void __init tdx_early_init(void) */ physical_mask &= cc_mask - 1; - x86_platform.guest.enc_cache_flush_required = tdx_cache_flush_required; - x86_platform.guest.enc_tlb_flush_required = tdx_tlb_flush_required; - x86_platform.guest.enc_status_change_finish = tdx_enc_status_changed; + /* + * Touching privately mapped GPA that is not properly converted to + * private with MapGPA and accepted leads to unrecoverable exit + * to VMM. + * + * load_unaligned_zeropad() can touch memory that is not owned by + * the caller, but just happened to next after the owned memory. + * This load_unaligned_zeropad() behaviour makes it important when + * kernel asks VMM to convert a GPA from shared to private or back. + * Kernel must never have a page mapped into direct mapping (and + * aliases) as private when the GPA is already converted to shared or + * when GPA is not yet converted to private. + * + * guest.enc_status_change_prepare() called before adjusting direct + * mapping and therefore it is responsible for converting the memory + * to private. + * + * guest.enc_status_change_finish() called after adjusting direct + * mapping and it converts the memory to shared. + * + * It is okay to have a shared mapping of memory that is not converted + * properly. handle_mmio() knows how to deal with load_unaligned_zeropad() + * stepping on it. + */ + x86_platform.guest.enc_status_change_prepare = tdx_enc_status_change_prepare; + x86_platform.guest.enc_status_change_finish = tdx_enc_status_change_finish; + + x86_platform.guest.enc_cache_flush_required = tdx_cache_flush_required; + x86_platform.guest.enc_tlb_flush_required = tdx_tlb_flush_required; pr_info("Guest detected\n"); } -- 2.39.3

1 year, 6 months

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HI

by Mrs Helen Philobrown.

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1 year, 6 months

1
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[PATCH 5.15 00/35] 5.15.115-rc3 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.15.115 release. There are 35 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Mon, 05 Jun 2023 14:35:25 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.115-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.15.115-rc3 Paul Blakey <paulb(a)nvidia.com> netfilter: ctnetlink: Support offloaded conntrack entry deletion Nicolas Dichtel <nicolas.dichtel(a)6wind.com> ipv{4,6}/raw: fix output xfrm lookup wrt protocol Carlos Llamas <cmllamas(a)google.com> binder: fix UAF of alloc->vma in race with munmap() Carlos Llamas <cmllamas(a)google.com> binder: add lockless binder_alloc_(set|get)_vma() Carlos Llamas <cmllamas(a)google.com> Revert "android: binder: stop saving a pointer to the VMA" Carlos Llamas <cmllamas(a)google.com> Revert "binder_alloc: add missing mmap_lock calls when using the VMA" Ruihan Li <lrh2000(a)pku.edu.cn> bluetooth: Add cmd validity checks at the start of hci_sock_ioctl() Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> xdp: xdp_mem_allocator can be NULL in trace_mem_connect(). Jiaxun Yang <jiaxun.yang(a)flygoat.com> irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable Yunsheng Lin <linyunsheng(a)huawei.com> page_pool: fix inconsistency for page_pool_ring_[un]lock() Qingfang DENG <qingfang.deng(a)siflower.com.cn> net: page_pool: use in_softirq() instead Toke Høiland-Jørgensen <toke(a)redhat.com> xdp: Allow registering memory model without rxq reference Rahul Rameshbabu <rrameshbabu(a)nvidia.com> net/mlx5e: Fix SQ wake logic in ptp napi_poll context Jiaxun Yang <jiaxun.yang(a)flygoat.com> irqchip/mips-gic: Use raw spinlock for gic_lock Marc Zyngier <maz(a)kernel.org> irqchip/mips-gic: Get rid of the reliance on irq_cpu_online() Carlos Llamas <cmllamas(a)google.com> binder: fix UAF caused by faulty buffer cleanup Hangbin Liu <liuhangbin(a)gmail.com> bonding: fix send_peer_notif overflow Hangbin Liu <liuhangbin(a)gmail.com> Bonding: add arp_missed_max option Arınç ÜNAL <arinc.unal(a)arinc9.com> net: dsa: mt7530: fix network connectivity with multiple CPU ports Daniel Golle <daniel(a)makrotopia.org> net: dsa: mt7530: split-off common parts from mt7531_setup Frank Wunderlich <frank-w(a)public-files.de> net: dsa: mt7530: rework mt753[01]_setup Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: introduce helpers for iterating through ports using dp David Epping <david.epping(a)missinglinkelectronics.com> net: phy: mscc: enable VSC8501/2 RGMII RX clock Steve Wahl <steve.wahl(a)hpe.com> platform/x86: ISST: Remove 8 socket limit Srinivas Pandruvada <srinivas.pandruvada(a)linux.intel.com> platform/x86: ISST: PUNIT device mapping with Sub-NUMA clustering Shay Drory <shayd(a)nvidia.com> net/mlx5: Devcom, serialize devcom registration Vlad Buslov <vladbu(a)nvidia.com> net/mlx5e: Fix deadlock in tc route query code Mark Bloch <mbloch(a)nvidia.com> net/mlx5: devcom only supports 2 ports Anton Protopopov <aspsk(a)isovalent.com> bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps Hans de Goede <hdegoede(a)redhat.com> power: supply: bq24190: Call power_supply_changed() after updating input current Hans de Goede <hdegoede(a)redhat.com> power: supply: core: Refactor power_supply_set_input_current_limit_from_supplier() Hans de Goede <hdegoede(a)redhat.com> power: supply: bq27xxx: After charger plug in/out wait 0.5s for things to stabilize Hans de Goede <hdegoede(a)redhat.com> power: supply: bq27xxx: Ensure power_supply_changed() is called on current sign changes Hans de Goede <hdegoede(a)redhat.com> power: supply: bq27xxx: Move bq27xxx_battery_update() down Sicelo A. Mhlongo <absicsz(a)gmail.com> power: supply: bq27xxx: expose battery data when CI=1 ------------- Diffstat: Documentation/networking/bonding.rst | 11 ++ Makefile | 4 +- drivers/android/binder.c | 26 +++- drivers/android/binder_alloc.c | 64 +++----- drivers/android/binder_alloc.h | 2 +- drivers/android/binder_alloc_selftest.c | 2 +- drivers/irqchip/irq-mips-gic.c | 65 +++++--- drivers/net/bonding/bond_main.c | 17 +- drivers/net/bonding/bond_netlink.c | 22 ++- drivers/net/bonding/bond_options.c | 36 ++++- drivers/net/bonding/bond_procfs.c | 2 + drivers/net/bonding/bond_sysfs.c | 13 ++ drivers/net/dsa/mt7530.c | 124 +++++++++------ drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c | 2 + drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h | 2 + drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 19 +-- drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 19 ++- .../net/ethernet/mellanox/mlx5/core/lib/devcom.c | 81 +++++++--- .../net/ethernet/mellanox/mlx5/core/lib/devcom.h | 3 + drivers/net/phy/mscc/mscc.h | 1 + drivers/net/phy/mscc/mscc_main.c | 54 +++---- .../x86/intel/speed_select_if/isst_if_common.c | 49 ++++-- drivers/power/supply/bq24190_charger.c | 13 +- drivers/power/supply/bq27xxx_battery.c | 171 +++++++++++---------- drivers/power/supply/power_supply_core.c | 57 +++---- include/linux/power/bq27xxx_battery.h | 3 + include/linux/power_supply.h | 5 +- include/net/bond_options.h | 1 + include/net/bonding.h | 3 +- include/net/dsa.h | 28 ++++ include/net/ip.h | 2 + include/net/page_pool.h | 18 --- include/net/xdp.h | 3 + include/uapi/linux/if_link.h | 1 + include/uapi/linux/in.h | 2 + kernel/bpf/hashtab.c | 6 +- net/bluetooth/hci_sock.c | 28 ++++ net/core/page_pool.c | 34 +++- net/core/xdp.c | 93 +++++++---- net/ipv4/ip_sockglue.c | 12 +- net/ipv4/raw.c | 5 +- net/ipv6/raw.c | 3 +- net/netfilter/nf_conntrack_netlink.c | 8 - tools/include/uapi/linux/if_link.h | 1 + 44 files changed, 726 insertions(+), 389 deletions(-)

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.14.y git checkout FETCH_HEAD git cherry-pick -x e42f110700ed7293700c26145e1ed07ea05ac3f6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060527-unviable-vacancy-b389@gregkh' --subject-prefix 'PATCH 4.14.y' HEAD^.. Possible dependencies: e42f110700ed ("phy: qcom-qmp-pcie-msm8996: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e42f110700ed7293700c26145e1ed07ea05ac3f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:10 +0200 Subject: [PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x e42f110700ed7293700c26145e1ed07ea05ac3f6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060526-palpitate-viable-ab52@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^.. Possible dependencies: e42f110700ed ("phy: qcom-qmp-pcie-msm8996: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e42f110700ed7293700c26145e1ed07ea05ac3f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:10 +0200 Subject: [PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x e42f110700ed7293700c26145e1ed07ea05ac3f6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060525-enjoying-defiance-668a@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: e42f110700ed ("phy: qcom-qmp-pcie-msm8996: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e42f110700ed7293700c26145e1ed07ea05ac3f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:10 +0200 Subject: [PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x e42f110700ed7293700c26145e1ed07ea05ac3f6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060524-satin-contented-0ea3@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: e42f110700ed ("phy: qcom-qmp-pcie-msm8996: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e42f110700ed7293700c26145e1ed07ea05ac3f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:10 +0200 Subject: [PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x e42f110700ed7293700c26145e1ed07ea05ac3f6 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060524-gong-backdrop-3a73@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: e42f110700ed ("phy: qcom-qmp-pcie-msm8996: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From e42f110700ed7293700c26145e1ed07ea05ac3f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:10 +0200 Subject: [PATCH] phy: qcom-qmp-pcie-msm8996: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-3-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c index 09824be088c9..0c603bc06e09 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c @@ -379,7 +379,7 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -409,7 +409,8 @@ static int qmp_pcie_msm8996_com_init(struct qmp_phy *qphy) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-combo: fix init-count imbalance" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.14.y git checkout FETCH_HEAD git cherry-pick -x 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060513-salute-apostle-d249@gregkh' --subject-prefix 'PATCH 4.14.y' HEAD^.. Possible dependencies: 9bf03a0cbd80 ("phy: qcom-qmp-combo: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:09 +0200 Subject: [PATCH] phy: qcom-qmp-combo: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation and can lead to the runtime suspend callback attempting to disable resources that have never been enabled. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-2-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index 6850e04c329b..87b17e5877ab 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -2472,7 +2472,7 @@ static int qmp_combo_com_init(struct qmp_combo *qmp) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -2522,7 +2522,8 @@ static int qmp_combo_com_init(struct qmp_combo *qmp) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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FAILED: patch "[PATCH] phy: qcom-qmp-combo: fix init-count imbalance" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2023060512-most-eastcoast-569c@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^.. Possible dependencies: 9bf03a0cbd80 ("phy: qcom-qmp-combo: fix init-count imbalance") 94a407cc17a4 ("phy: qcom-qmp: create copies of QMP PHY driver") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9bf03a0cbd80a256bc1e1c4bcc80bc2b06b8b2b9 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro(a)kernel.org> Date: Tue, 2 May 2023 12:38:09 +0200 Subject: [PATCH] phy: qcom-qmp-combo: fix init-count imbalance The init counter is not decremented on initialisation errors, which prevents retrying initialisation and can lead to the runtime suspend callback attempting to disable resources that have never been enabled. Add the missing decrement on initialisation errors so that the counter reflects the state of the device. Fixes: e78f3d15e115 ("phy: qcom-qmp: new qmp phy driver for qcom-chipsets") Cc: stable(a)vger.kernel.org # 4.12 Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> Link: https://lore.kernel.org/r/20230502103810.12061-2-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul(a)kernel.org> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index 6850e04c329b..87b17e5877ab 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -2472,7 +2472,7 @@ static int qmp_combo_com_init(struct qmp_combo *qmp) ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs); if (ret) { dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret); - goto err_unlock; + goto err_decrement_count; } ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets); @@ -2522,7 +2522,8 @@ static int qmp_combo_com_init(struct qmp_combo *qmp) reset_control_bulk_assert(cfg->num_resets, qmp->resets); err_disable_regulators: regulator_bulk_disable(cfg->num_vregs, qmp->vregs); -err_unlock: +err_decrement_count: + qmp->init_count--; mutex_unlock(&qmp->phy_mutex); return ret;

1 year, 6 months

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