diff options
28 files changed, 159 insertions, 132 deletions
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index b416abcbacd8..e5c7d9d8592a 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -825,6 +825,7 @@ CONFIG_QCOM_SMSM=y CONFIG_QCOM_WCNSS_CTRL=m CONFIG_ROCKCHIP_PM_DOMAINS=y CONFIG_COMMON_CLK_QCOM=y +CONFIG_QCOM_CLK_RPM=y CONFIG_CHROME_PLATFORMS=y CONFIG_STAGING_BOARD=y CONFIG_CROS_EC_CHARDEV=m diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index 1f59ea051bab..b7e0125c0bbf 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -478,11 +478,10 @@ extern unsigned long __must_check arm_copy_from_user(void *to, const void __user *from, unsigned long n); static inline unsigned long __must_check -__copy_from_user(void *to, const void __user *from, unsigned long n) +__arch_copy_from_user(void *to, const void __user *from, unsigned long n) { unsigned int __ua_flags; - check_object_size(to, n, false); __ua_flags = uaccess_save_and_enable(); n = arm_copy_from_user(to, from, n); uaccess_restore(__ua_flags); @@ -495,18 +494,15 @@ extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n); static inline unsigned long __must_check -__copy_to_user(void __user *to, const void *from, unsigned long n) +__arch_copy_to_user(void __user *to, const void *from, unsigned long n) { #ifndef CONFIG_UACCESS_WITH_MEMCPY unsigned int __ua_flags; - - check_object_size(from, n, true); __ua_flags = uaccess_save_and_enable(); n = arm_copy_to_user(to, from, n); uaccess_restore(__ua_flags); return n; #else - check_object_size(from, n, true); return arm_copy_to_user(to, from, n); #endif } @@ -526,25 +522,49 @@ __clear_user(void __user *addr, unsigned long n) } #else -#define __copy_from_user(to, from, n) (memcpy(to, (void __force *)from, n), 0) -#define __copy_to_user(to, from, n) (memcpy((void __force *)to, from, n), 0) +#define __arch_copy_from_user(to, from, n) \ + (memcpy(to, (void __force *)from, n), 0) +#define __arch_copy_to_user(to, from, n) \ + (memcpy((void __force *)to, from, n), 0) #define __clear_user(addr, n) (memset((void __force *)addr, 0, n), 0) #endif -static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) +static inline unsigned long __must_check +__copy_from_user(void *to, const void __user *from, unsigned long n) +{ + check_object_size(to, n, false); + return __arch_copy_from_user(to, from, n); +} + +static inline unsigned long __must_check +copy_from_user(void *to, const void __user *from, unsigned long n) { unsigned long res = n; + + check_object_size(to, n, false); + if (likely(access_ok(VERIFY_READ, from, n))) - res = __copy_from_user(to, from, n); + res = __arch_copy_from_user(to, from, n); if (unlikely(res)) memset(to + (n - res), 0, res); return res; } -static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) +static inline unsigned long __must_check +__copy_to_user(void __user *to, const void *from, unsigned long n) { + check_object_size(from, n, true); + + return __arch_copy_to_user(to, from, n); +} + +static inline unsigned long __must_check +copy_to_user(void __user *to, const void *from, unsigned long n) +{ + check_object_size(from, n, true); + if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); + n = __arch_copy_to_user(to, from, n); return n; } diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index 8ecfd15c3a02..df73914e81c8 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -67,7 +67,7 @@ ENTRY(__get_user_4) ENDPROC(__get_user_4) ENTRY(__get_user_8) - check_uaccess r0, 8, r1, r2, __get_user_bad + check_uaccess r0, 8, r1, r2, __get_user_bad8 #ifdef CONFIG_THUMB2_KERNEL 5: TUSER(ldr) r2, [r0] 6: TUSER(ldr) r3, [r0, #4] diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index 93abf8a9813d..8e1588021d1c 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -347,7 +347,8 @@ early_param("disable_radix", parse_disable_radix); void __init mmu_early_init_devtree(void) { /* Disable radix mode based on kernel command line. */ - if (disable_radix) + /* We don't yet have the machinery to do radix as a guest. */ + if (disable_radix || !(mfmsr() & MSR_HV)) cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX; if (early_radix_enabled()) diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index ec5d7545e6dc..0442d98367ae 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -160,11 +160,12 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval) static void mark_screen_rdonly(struct mm_struct *mm) { + struct vm_area_struct *vma; + spinlock_t *ptl; pgd_t *pgd; pud_t *pud; pmd_t *pmd; pte_t *pte; - spinlock_t *ptl; int i; down_write(&mm->mmap_sem); @@ -177,7 +178,7 @@ static void mark_screen_rdonly(struct mm_struct *mm) pmd = pmd_offset(pud, 0xA0000); if (pmd_trans_huge(*pmd)) { - struct vm_area_struct *vma = find_vma(mm, 0xA0000); + vma = find_vma(mm, 0xA0000); split_huge_pmd(vma, pmd, 0xA0000); } if (pmd_none_or_clear_bad(pmd)) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index c73a6fcaeb9d..838f07e2b64a 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3758,7 +3758,7 @@ static void cfq_init_cfqq(struct cfq_data *cfqd, struct cfq_queue *cfqq, } #ifdef CONFIG_CFQ_GROUP_IOSCHED -static void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) +static bool check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) { struct cfq_data *cfqd = cic_to_cfqd(cic); struct cfq_queue *cfqq; @@ -3775,15 +3775,7 @@ static void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) * spuriously on a newly created cic but there's no harm. */ if (unlikely(!cfqd) || likely(cic->blkcg_serial_nr == serial_nr)) - return; - - /* - * If we have a non-root cgroup, we can depend on that to - * do proper throttling of writes. Turn off wbt for that - * case, if it was enabled by default. - */ - if (nonroot_cg) - wbt_disable_default(cfqd->queue); + return nonroot_cg; /* * Drop reference to queues. New queues will be assigned in new @@ -3804,9 +3796,13 @@ static void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) } cic->blkcg_serial_nr = serial_nr; + return nonroot_cg; } #else -static inline void check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) { } +static inline bool check_blkcg_changed(struct cfq_io_cq *cic, struct bio *bio) +{ + return false; +} #endif /* CONFIG_CFQ_GROUP_IOSCHED */ static struct cfq_queue ** @@ -4448,11 +4444,12 @@ cfq_set_request(struct request_queue *q, struct request *rq, struct bio *bio, const int rw = rq_data_dir(rq); const bool is_sync = rq_is_sync(rq); struct cfq_queue *cfqq; + bool disable_wbt; spin_lock_irq(q->queue_lock); check_ioprio_changed(cic, bio); - check_blkcg_changed(cic, bio); + disable_wbt = check_blkcg_changed(cic, bio); new_queue: cfqq = cic_to_cfqq(cic, is_sync); if (!cfqq || cfqq == &cfqd->oom_cfqq) { @@ -4488,6 +4485,10 @@ new_queue: rq->elv.priv[0] = cfqq; rq->elv.priv[1] = cfqq->cfqg; spin_unlock_irq(q->queue_lock); + + if (disable_wbt) + wbt_disable_default(q); + return 0; } diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index aa644487749c..f59771da52ee 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1817,7 +1817,7 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr) mgr->payloads[i].vcpi = req_payload.vcpi; } else if (mgr->payloads[i].num_slots) { mgr->payloads[i].num_slots = 0; - drm_dp_destroy_payload_step1(mgr, port, port->vcpi.vcpi, &mgr->payloads[i]); + drm_dp_destroy_payload_step1(mgr, port, mgr->payloads[i].vcpi, &mgr->payloads[i]); req_payload.payload_state = mgr->payloads[i].payload_state; mgr->payloads[i].start_slot = 0; } diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c index fb16070b266e..4a4f9533c53b 100644 --- a/drivers/gpu/drm/radeon/radeon_cursor.c +++ b/drivers/gpu/drm/radeon/radeon_cursor.c @@ -205,8 +205,8 @@ static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y) } if (x <= (crtc->x - w) || y <= (crtc->y - radeon_crtc->cursor_height) || - x >= (crtc->x + crtc->mode.crtc_hdisplay) || - y >= (crtc->y + crtc->mode.crtc_vdisplay)) + x >= (crtc->x + crtc->mode.hdisplay) || + y >= (crtc->y + crtc->mode.vdisplay)) goto out_of_bounds; x += xorigin; diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c index 6d81c56184d3..e9db857c6226 100644 --- a/drivers/i2c/busses/i2c-designware-core.c +++ b/drivers/i2c/busses/i2c-designware-core.c @@ -475,30 +475,28 @@ static int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev) static void i2c_dw_xfer_init(struct dw_i2c_dev *dev) { struct i2c_msg *msgs = dev->msgs; - u32 ic_tar = 0; + u32 ic_con, ic_tar = 0; /* Disable the adapter */ __i2c_dw_enable_and_wait(dev, false); /* if the slave address is ten bit address, enable 10BITADDR */ - if (dev->dynamic_tar_update_enabled) { + ic_con = dw_readl(dev, DW_IC_CON); + if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) { + ic_con |= DW_IC_CON_10BITADDR_MASTER; /* * If I2C_DYNAMIC_TAR_UPDATE is set, the 10-bit addressing - * mode has to be enabled via bit 12 of IC_TAR register, - * otherwise bit 4 of IC_CON is used. + * mode has to be enabled via bit 12 of IC_TAR register. + * We set it always as I2C_DYNAMIC_TAR_UPDATE can't be + * detected from registers. */ - if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) - ic_tar = DW_IC_TAR_10BITADDR_MASTER; + ic_tar = DW_IC_TAR_10BITADDR_MASTER; } else { - u32 ic_con = dw_readl(dev, DW_IC_CON); - - if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) - ic_con |= DW_IC_CON_10BITADDR_MASTER; - else - ic_con &= ~DW_IC_CON_10BITADDR_MASTER; - dw_writel(dev, ic_con, DW_IC_CON); + ic_con &= ~DW_IC_CON_10BITADDR_MASTER; } + dw_writel(dev, ic_con, DW_IC_CON); + /* * Set the slave (target) address and enable 10-bit addressing mode * if applicable. @@ -963,7 +961,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev) { struct i2c_adapter *adap = &dev->adapter; int r; - u32 reg; init_completion(&dev->cmd_complete); @@ -971,26 +968,6 @@ int i2c_dw_probe(struct dw_i2c_dev *dev) if (r) return r; - r = i2c_dw_acquire_lock(dev); - if (r) - return r; - - /* - * Test if dynamic TAR update is enabled in this controller by writing - * to IC_10BITADDR_MASTER field in IC_CON: when it is enabled this - * field is read-only so it should not succeed - */ - reg = dw_readl(dev, DW_IC_CON); - dw_writel(dev, reg ^ DW_IC_CON_10BITADDR_MASTER, DW_IC_CON); - - if ((dw_readl(dev, DW_IC_CON) & DW_IC_CON_10BITADDR_MASTER) == - (reg & DW_IC_CON_10BITADDR_MASTER)) { - dev->dynamic_tar_update_enabled = true; - dev_dbg(dev->dev, "Dynamic TAR update enabled"); - } - - i2c_dw_release_lock(dev); - snprintf(adap->name, sizeof(adap->name), "Synopsys DesignWare I2C adapter"); adap->retries = 3; diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index 26250b425e2f..c1db3a5a340f 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -125,7 +125,6 @@ struct dw_i2c_dev { int (*acquire_lock)(struct dw_i2c_dev *dev); void (*release_lock)(struct dw_i2c_dev *dev); bool pm_runtime_disabled; - bool dynamic_tar_update_enabled; }; #define ACCESS_SWAP 0x00000001 diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index fa598f7f4372..1e1d0ad406f2 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -1231,6 +1231,7 @@ static const struct acpi_device_id elan_acpi_id[] = { { "ELAN0000", 0 }, { "ELAN0100", 0 }, { "ELAN0600", 0 }, + { "ELAN0605", 0 }, { "ELAN1000", 0 }, { } }; diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index b61b52f9da3d..0fccca075e29 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1706,10 +1706,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, err = mmc_select_hs400(card); if (err) goto free_card; - } else if (mmc_card_hs(card)) { + } else { /* Select the desired bus width optionally */ err = mmc_select_bus_width(card); - if (err > 0) { + if (err > 0 && mmc_card_hs(card)) { err = mmc_select_hs_ddr(card); if (err) goto free_card; diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index 25a14a3fe784..bc5a3347fd4a 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -1666,7 +1666,7 @@ static struct sk_buff *sg_fd_to_skb(const struct dpaa_priv *priv, free_buffers: /* compensate sw bpool counter changes */ - for (i--; i > 0; i--) { + for (i--; i >= 0; i--) { dpaa_bp = dpaa_bpid2pool(sgt[i].bpid); if (dpaa_bp) { count_ptr = this_cpu_ptr(dpaa_bp->percpu_count); diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 4e27c5b09600..c5db8f8563c1 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2489,7 +2489,8 @@ static int vxlan_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb) rt = vxlan_get_route(vxlan, dev, sock4, skb, 0, info->key.tos, info->key.u.ipv4.dst, - &info->key.u.ipv4.src, dport, sport, NULL, info); + &info->key.u.ipv4.src, dport, sport, + &info->dst_cache, info); if (IS_ERR(rt)) return PTR_ERR(rt); ip_rt_put(rt); @@ -2500,7 +2501,8 @@ static int vxlan_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb) ndst = vxlan6_get_route(vxlan, dev, sock6, skb, 0, info->key.tos, info->key.label, &info->key.u.ipv6.dst, - &info->key.u.ipv6.src, dport, sport, NULL, info); + &info->key.u.ipv6.src, dport, sport, + &info->dst_cache, info); if (IS_ERR(ndst)) return PTR_ERR(ndst); dst_release(ndst); diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c index eca9688bf9d9..c00238491673 100644 --- a/drivers/ntb/hw/intel/ntb_hw_intel.c +++ b/drivers/ntb/hw/intel/ntb_hw_intel.c @@ -1629,6 +1629,28 @@ static void atom_deinit_dev(struct intel_ntb_dev *ndev) /* Skylake Xeon NTB */ +static int skx_poll_link(struct intel_ntb_dev *ndev) +{ + u16 reg_val; + int rc; + + ndev->reg->db_iowrite(ndev->db_link_mask, + ndev->self_mmio + + ndev->self_reg->db_clear); + + rc = pci_read_config_word(ndev->ntb.pdev, + SKX_LINK_STATUS_OFFSET, ®_val); + if (rc) + return 0; + + if (reg_val == ndev->lnk_sta) + return 0; + + ndev->lnk_sta = reg_val; + + return 1; +} + static u64 skx_db_ioread(void __iomem *mmio) { return ioread64(mmio); @@ -2852,7 +2874,7 @@ static struct intel_b2b_addr xeon_b2b_dsd_addr = { }; static const struct intel_ntb_reg skx_reg = { - .poll_link = xeon_poll_link, + .poll_link = skx_poll_link, .link_is_up = xeon_link_is_up, .db_ioread = skx_db_ioread, .db_iowrite = skx_db_iowrite, diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index f81aa4b18d9f..02ca45fdd892 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -1802,7 +1802,7 @@ ntb_transport_create_queue(void *data, struct device *client_dev, node = dev_to_node(&ndev->dev); - free_queue = ffs(nt->qp_bitmap); + free_queue = ffs(nt->qp_bitmap_free); if (!free_queue) goto err; @@ -2273,9 +2273,8 @@ module_init(ntb_transport_init); static void __exit ntb_transport_exit(void) { - debugfs_remove_recursive(nt_debugfs_dir); - ntb_unregister_client(&ntb_transport_client); bus_unregister(&ntb_transport_bus); + debugfs_remove_recursive(nt_debugfs_dir); } module_exit(ntb_transport_exit); diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c index e75d4fdc0866..434e1d474f33 100644 --- a/drivers/ntb/test/ntb_perf.c +++ b/drivers/ntb/test/ntb_perf.c @@ -265,6 +265,8 @@ static ssize_t perf_copy(struct pthr_ctx *pctx, char __iomem *dst, if (dma_submit_error(cookie)) goto err_set_unmap; + dmaengine_unmap_put(unmap); + atomic_inc(&pctx->dma_sync); dma_async_issue_pending(chan); diff --git a/drivers/reset/core.c b/drivers/reset/core.c index 10368ed8fd13..b6f5f1e1826c 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -163,7 +163,7 @@ int reset_control_reset(struct reset_control *rstc) } ret = rstc->rcdev->ops->reset(rstc->rcdev, rstc->id); - if (rstc->shared && !ret) + if (rstc->shared && ret) atomic_dec(&rstc->triggered_count); return ret; diff --git a/kernel/futex.c b/kernel/futex.c index 0842c8ca534b..cdf365036141 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -3323,4 +3323,4 @@ static int __init futex_init(void) return 0; } -__initcall(futex_init); +core_initcall(futex_init); diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 8b2696420abb..4ba3d34938c0 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1516,7 +1516,7 @@ static void call_console_drivers(int level, { struct console *con; - trace_console(text, len); + trace_console_rcuidle(text, len); if (!console_drivers) return; diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 3109204c87cc..17ac99b60ee5 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -347,17 +347,16 @@ static void tick_handle_periodic_broadcast(struct clock_event_device *dev) * * Called when the system enters a state where affected tick devices * might stop. Note: TICK_BROADCAST_FORCE cannot be undone. - * - * Called with interrupts disabled, so clockevents_lock is not - * required here because the local clock event device cannot go away - * under us. */ void tick_broadcast_control(enum tick_broadcast_mode mode) { struct clock_event_device *bc, *dev; struct tick_device *td; int cpu, bc_stopped; + unsigned long flags; + /* Protects also the local clockevent device. */ + raw_spin_lock_irqsave(&tick_broadcast_lock, flags); td = this_cpu_ptr(&tick_cpu_device); dev = td->evtdev; @@ -365,12 +364,11 @@ void tick_broadcast_control(enum tick_broadcast_mode mode) * Is the device not affected by the powerstate ? */ if (!dev || !(dev->features & CLOCK_EVT_FEAT_C3STOP)) - return; + goto out; if (!tick_device_is_functional(dev)) - return; + goto out; - raw_spin_lock(&tick_broadcast_lock); cpu = smp_processor_id(); bc = tick_broadcast_device.evtdev; bc_stopped = cpumask_empty(tick_broadcast_mask); @@ -420,7 +418,8 @@ void tick_broadcast_control(enum tick_broadcast_mode mode) tick_broadcast_setup_oneshot(bc); } } - raw_spin_unlock(&tick_broadcast_lock); +out: + raw_spin_unlock_irqrestore(&tick_broadcast_lock, flags); } EXPORT_SYMBOL_GPL(tick_broadcast_control); diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index fc6f740d0277..2c115fdab397 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -725,11 +725,6 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, */ if (delta == 0) { tick_nohz_restart(ts, now); - /* - * Make sure next tick stop doesn't get fooled by past - * clock deadline - */ - ts->next_tick = 0; goto out; } } @@ -772,7 +767,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, tick = expires; /* Skip reprogram of event if its not changed */ - if (ts->tick_stopped && (expires == ts->next_tick)) + if (ts->tick_stopped && (expires == dev->next_event)) goto out; /* @@ -792,8 +787,6 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, trace_tick_stop(1, TICK_DEP_MASK_NONE); } - ts->next_tick = tick; - /* * If the expiration time == KTIME_MAX, then we simply stop * the tick timer. @@ -809,10 +802,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, else tick_program_event(tick, 1); out: - /* - * Update the estimated sleep length until the next timer - * (not only the tick). - */ + /* Update the estimated sleep length */ ts->sleep_length = ktime_sub(dev->next_event, now); return tick; } diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h index 075444e3d48e..bf38226e5c17 100644 --- a/kernel/time/tick-sched.h +++ b/kernel/time/tick-sched.h @@ -27,7 +27,6 @@ enum tick_nohz_mode { * timer is modified for nohz sleeps. This is necessary * to resume the tick timer operation in the timeline * when the CPU returns from nohz sleep. - * @next_tick: Next tick to be fired when in dynticks mode. * @tick_stopped: Indicator that the idle tick has been stopped * @idle_jiffies: jiffies at the entry to idle for idle time accounting * @idle_calls: Total number of idle calls @@ -45,7 +44,6 @@ struct tick_sched { unsigned long check_clocks; enum tick_nohz_mode nohz_mode; ktime_t last_tick; - ktime_t next_tick; int inidle; int tick_stopped; unsigned long idle_jiffies; diff --git a/kernel/time/timekeeping_debug.c b/kernel/time/timekeeping_debug.c index ca9fb800336b..38bc4d2208e8 100644 --- a/kernel/time/timekeeping_debug.c +++ b/kernel/time/timekeeping_debug.c @@ -75,7 +75,7 @@ void tk_debug_account_sleep_time(struct timespec64 *t) int bin = min(fls(t->tv_sec), NUM_BINS-1); sleep_time_bin[bin]++; - pr_info("Suspended for %lld.%03lu seconds\n", (s64)t->tv_sec, - t->tv_nsec / NSEC_PER_MSEC); + printk_deferred(KERN_INFO "Suspended for %lld.%03lu seconds\n", + (s64)t->tv_sec, t->tv_nsec / NSEC_PER_MSEC); } diff --git a/net/dccp/input.c b/net/dccp/input.c index ba347184bda9..8fedc2d49770 100644 --- a/net/dccp/input.c +++ b/net/dccp/input.c @@ -606,7 +606,8 @@ int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb, if (inet_csk(sk)->icsk_af_ops->conn_request(sk, skb) < 0) return 1; - goto discard; + consume_skb(skb); + return 0; } if (dh->dccph_type == DCCP_PKT_RESET) goto discard; diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index d0f51b420447..528b3c1f3fde 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1023,8 +1023,10 @@ static int ip6_dst_lookup_tail(struct net *net, const struct sock *sk, } #endif if (ipv6_addr_v4mapped(&fl6->saddr) && - !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) - return -EAFNOSUPPORT; + !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) { + err = -EAFNOSUPPORT; + goto out_err_release; + } return 0; diff --git a/net/irda/irqueue.c b/net/irda/irqueue.c index acbe61c7e683..160dc89335e2 100644 --- a/net/irda/irqueue.c +++ b/net/irda/irqueue.c @@ -383,9 +383,6 @@ EXPORT_SYMBOL(hashbin_new); * for deallocating this structure if it's complex. If not the user can * just supply kfree, which should take care of the job. */ -#ifdef CONFIG_LOCKDEP -static int hashbin_lock_depth = 0; -#endif int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func) { irda_queue_t* queue; @@ -396,22 +393,27 @@ int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func) IRDA_ASSERT(hashbin->magic == HB_MAGIC, return -1;); /* Synchronize */ - if ( hashbin->hb_type & HB_LOCK ) { - spin_lock_irqsave_nested(&hashbin->hb_spinlock, flags, - hashbin_lock_depth++); - } + if (hashbin->hb_type & HB_LOCK) + spin_lock_irqsave(&hashbin->hb_spinlock, flags); /* * Free the entries in the hashbin, TODO: use hashbin_clear when * it has been shown to work */ for (i = 0; i < HASHBIN_SIZE; i ++ ) { - queue = dequeue_first((irda_queue_t**) &hashbin->hb_queue[i]); - while (queue ) { - if (free_func) - (*free_func)(queue); - queue = dequeue_first( - (irda_queue_t**) &hashbin->hb_queue[i]); + while (1) { + queue = dequeue_first((irda_queue_t**) &hashbin->hb_queue[i]); + + if (!queue) + break; + + if (free_func) { + if (hashbin->hb_type & HB_LOCK) + spin_unlock_irqrestore(&hashbin->hb_spinlock, flags); + free_func(queue); + if (hashbin->hb_type & HB_LOCK) + spin_lock_irqsave(&hashbin->hb_spinlock, flags); + } } } @@ -420,12 +422,8 @@ int hashbin_delete( hashbin_t* hashbin, FREE_FUNC free_func) hashbin->magic = ~HB_MAGIC; /* Release lock */ - if ( hashbin->hb_type & HB_LOCK) { + if (hashbin->hb_type & HB_LOCK) spin_unlock_irqrestore(&hashbin->hb_spinlock, flags); -#ifdef CONFIG_LOCKDEP - hashbin_lock_depth--; -#endif - } /* * Free the hashbin structure diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 7098e2a457e4..2bd0d1949312 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1505,6 +1505,8 @@ static void __fanout_link(struct sock *sk, struct packet_sock *po) f->arr[f->num_members] = sk; smp_wmb(); f->num_members++; + if (f->num_members == 1) + dev_add_pack(&f->prot_hook); spin_unlock(&f->lock); } @@ -1521,6 +1523,8 @@ static void __fanout_unlink(struct sock *sk, struct packet_sock *po) BUG_ON(i >= f->num_members); f->arr[i] = f->arr[f->num_members - 1]; f->num_members--; + if (f->num_members == 0) + __dev_remove_pack(&f->prot_hook); spin_unlock(&f->lock); } @@ -1701,7 +1705,6 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags) match->prot_hook.func = packet_rcv_fanout; match->prot_hook.af_packet_priv = match; match->prot_hook.id_match = match_fanout_group; - dev_add_pack(&match->prot_hook); list_add(&match->list, &fanout_list); } err = -EINVAL; @@ -1726,7 +1729,12 @@ out: return err; } -static void fanout_release(struct sock *sk) +/* If pkt_sk(sk)->fanout->sk_ref is zero, this function removes + * pkt_sk(sk)->fanout from fanout_list and returns pkt_sk(sk)->fanout. + * It is the responsibility of the caller to call fanout_release_data() and + * free the returned packet_fanout (after synchronize_net()) + */ +static struct packet_fanout *fanout_release(struct sock *sk) { struct packet_sock *po = pkt_sk(sk); struct packet_fanout *f; @@ -1736,17 +1744,17 @@ static void fanout_release(struct sock *sk) if (f) { po->fanout = NULL; - if (atomic_dec_and_test(&f->sk_ref)) { + if (atomic_dec_and_test(&f->sk_ref)) list_del(&f->list); - dev_remove_pack(&f->prot_hook); - fanout_release_data(f); - kfree(f); - } + else + f = NULL; if (po->rollover) kfree_rcu(po->rollover, rcu); } mutex_unlock(&fanout_mutex); + + return f; } static bool packet_extra_vlan_len_allowed(const struct net_device *dev, @@ -2933,6 +2941,7 @@ static int packet_release(struct socket *sock) { struct sock *sk = sock->sk; struct packet_sock *po; + struct packet_fanout *f; struct net *net; union tpacket_req_u req_u; @@ -2972,9 +2981,14 @@ static int packet_release(struct socket *sock) packet_set_ring(sk, &req_u, 1, 1); } - fanout_release(sk); + f = fanout_release(sk); synchronize_net(); + + if (f) { + fanout_release_data(f); + kfree(f); + } /* * Now the socket is dead. No more input will appear. */ @@ -3926,7 +3940,6 @@ static int packet_notifier(struct notifier_block *this, } if (msg == NETDEV_UNREGISTER) { packet_cached_dev_reset(po); - fanout_release(sk); po->ifindex = -1; if (po->prot_hook.dev) dev_put(po->prot_hook.dev); |