commit: 9e2ff11175e4ea0e03f37daf4db1c759be5dc3ce Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Sun Jan 17 16:22:00 2021 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Sun Jan 17 16:22:00 2021 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=9e2ff111
Linux patch 4.9.252 Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> 0000_README | 4 + 1251_linux-4.9.252.patch | 788 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 792 insertions(+) diff --git a/0000_README b/0000_README index 9c820fe..266222d 100644 --- a/0000_README +++ b/0000_README @@ -1047,6 +1047,10 @@ Patch: 1250_linux-4.9.251.patch From: http://www.kernel.org Desc: Linux 4.9.251 +Patch: 1251_linux-4.9.252.patch +From: http://www.kernel.org +Desc: Linux 4.9.252 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1251_linux-4.9.252.patch b/1251_linux-4.9.252.patch new file mode 100644 index 0000000..dee0597 --- /dev/null +++ b/1251_linux-4.9.252.patch @@ -0,0 +1,788 @@ +diff --git a/Makefile b/Makefile +index 8ebbb60f2078a..2213fe336705f 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,6 +1,6 @@ + VERSION = 4 + PATCHLEVEL = 9 +-SUBLEVEL = 251 ++SUBLEVEL = 252 + EXTRAVERSION = + NAME = Roaring Lionus + +diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c +index f989145480c8f..bf236b7af8c1a 100644 +--- a/arch/arm/mach-omap2/omap_device.c ++++ b/arch/arm/mach-omap2/omap_device.c +@@ -224,10 +224,12 @@ static int _omap_device_notifier_call(struct notifier_block *nb, + break; + case BUS_NOTIFY_BIND_DRIVER: + od = to_omap_device(pdev); +- if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED) && +- pm_runtime_status_suspended(dev)) { ++ if (od) { + od->_driver_status = BUS_NOTIFY_BIND_DRIVER; +- pm_runtime_set_active(dev); ++ if (od->_state == OMAP_DEVICE_STATE_ENABLED && ++ pm_runtime_status_suspended(dev)) { ++ pm_runtime_set_active(dev); ++ } + } + break; + case BUS_NOTIFY_ADD_DEVICE: +diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c +index 0ad81fa13688f..10d80456f38f1 100644 +--- a/arch/arm64/kvm/sys_regs.c ++++ b/arch/arm64/kvm/sys_regs.c +@@ -450,6 +450,10 @@ static void reset_pmcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r) + { + u64 pmcr, val; + ++ /* No PMU available, PMCR_EL0 may UNDEF... */ ++ if (!kvm_arm_support_pmu_v3()) ++ return; ++ + pmcr = read_sysreg(pmcr_el0); + /* + * Writable bits of PMCR_EL0 (ARMV8_PMU_PMCR_MASK) are reset to UNKNOWN +diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h +index 6b8b2d57fdc8c..e588028922a83 100644 +--- a/arch/powerpc/include/asm/book3s/32/pgtable.h ++++ b/arch/powerpc/include/asm/book3s/32/pgtable.h +@@ -411,9 +411,9 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, + if (pte_val(*ptep) & _PAGE_HASHPTE) + flush_hash_entry(mm, ptep, addr); + __asm__ __volatile__("\ +- stw%U0%X0 %2,%0\n\ ++ stw%X0 %2,%0\n\ + eieio\n\ +- stw%U0%X0 %L2,%1" ++ stw%X1 %L2,%1" + : "=m" (*ptep), "=m" (*((unsigned char *)ptep+4)) + : "r" (pte) : "memory"); + +diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h +index 1263c22d60d85..330fe178c0c5e 100644 +--- a/arch/powerpc/include/asm/nohash/pgtable.h ++++ b/arch/powerpc/include/asm/nohash/pgtable.h +@@ -155,9 +155,9 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, + flush_hash_entry(mm, ptep, addr); + #endif + __asm__ __volatile__("\ +- stw%U0%X0 %2,%0\n\ ++ stw%X0 %2,%0\n\ + eieio\n\ +- stw%U0%X0 %L2,%1" ++ stw%X1 %L2,%1" + : "=m" (*ptep), "=m" (*((unsigned char *)ptep+4)) + : "r" (pte) : "memory"); + +diff --git a/block/genhd.c b/block/genhd.c +index fcd6d4fae657c..9c1adfd768d2c 100644 +--- a/block/genhd.c ++++ b/block/genhd.c +@@ -159,14 +159,17 @@ struct hd_struct *disk_part_iter_next(struct disk_part_iter *piter) + part = rcu_dereference(ptbl->part[piter->idx]); + if (!part) + continue; ++ get_device(part_to_dev(part)); ++ piter->part = part; + if (!part_nr_sects_read(part) && + !(piter->flags & DISK_PITER_INCL_EMPTY) && + !(piter->flags & DISK_PITER_INCL_EMPTY_PART0 && +- piter->idx == 0)) ++ piter->idx == 0)) { ++ put_device(part_to_dev(part)); ++ piter->part = NULL; + continue; ++ } + +- get_device(part_to_dev(part)); +- piter->part = part; + piter->idx += inc; + break; + } +diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig +index 39dd30b6ef86e..894102fd5a069 100644 +--- a/drivers/block/Kconfig ++++ b/drivers/block/Kconfig +@@ -530,6 +530,7 @@ config BLK_DEV_RBD + config BLK_DEV_RSXX + tristate "IBM Flash Adapter 900GB Full Height PCIe Device Driver" + depends on PCI ++ select CRC32 + help + Device driver for IBM's high speed PCIe SSD + storage device: Flash Adapter 900GB Full Height. +diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c +index 0b5bf135b0907..59f16807921ad 100644 +--- a/drivers/cpufreq/powernow-k8.c ++++ b/drivers/cpufreq/powernow-k8.c +@@ -887,9 +887,9 @@ static int get_transition_latency(struct powernow_k8_data *data) + + /* Take a frequency, and issue the fid/vid transition command */ + static int transition_frequency_fidvid(struct powernow_k8_data *data, +- unsigned int index) ++ unsigned int index, ++ struct cpufreq_policy *policy) + { +- struct cpufreq_policy *policy; + u32 fid = 0; + u32 vid = 0; + int res; +@@ -921,9 +921,6 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data, + freqs.old = find_khz_freq_from_fid(data->currfid); + freqs.new = find_khz_freq_from_fid(fid); + +- policy = cpufreq_cpu_get(smp_processor_id()); +- cpufreq_cpu_put(policy); +- + cpufreq_freq_transition_begin(policy, &freqs); + res = transition_fid_vid(data, fid, vid); + cpufreq_freq_transition_end(policy, &freqs, res); +@@ -978,7 +975,7 @@ static long powernowk8_target_fn(void *arg) + + powernow_k8_acpi_pst_values(data, newstate); + +- ret = transition_frequency_fidvid(data, newstate); ++ ret = transition_frequency_fidvid(data, newstate, pol); + + if (ret) { + pr_err("transition frequency failed\n"); +diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c +index ef99ef0bb1ca2..f00652585ee31 100644 +--- a/drivers/dma/xilinx/xilinx_dma.c ++++ b/drivers/dma/xilinx/xilinx_dma.c +@@ -2357,7 +2357,7 @@ static int xilinx_dma_chan_probe(struct xilinx_dma_device *xdev, + has_dre = false; + + if (!has_dre) +- xdev->common.copy_align = fls(width - 1); ++ xdev->common.copy_align = (enum dmaengine_alignment)fls(width - 1); + + if (of_device_is_compatible(node, "xlnx,axi-vdma-mm2s-channel") || + of_device_is_compatible(node, "xlnx,axi-dma-mm2s-channel") || +@@ -2630,7 +2630,11 @@ static int xilinx_dma_probe(struct platform_device *pdev) + } + + /* Register the DMA engine with the core */ +- dma_async_device_register(&xdev->common); ++ err = dma_async_device_register(&xdev->common); ++ if (err) { ++ dev_err(xdev->dev, "failed to register the dma device\n"); ++ goto error; ++ } + + err = of_dma_controller_register(node, of_dma_xilinx_xlate, + xdev); +diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c +index 4548d89abcdc3..ff8168c60b35a 100644 +--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c ++++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c +@@ -882,7 +882,7 @@ eb_vma_misplaced(struct i915_vma *vma) + return !only_mappable_for_reloc(entry->flags); + + if ((entry->flags & EXEC_OBJECT_SUPPORTS_48B_ADDRESS) == 0 && +- (vma->node.start + vma->node.size - 1) >> 32) ++ (vma->node.start + vma->node.size + 4095) >> 32) + return true; + + return false; +diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c +index ce125ec23d2a5..88ba1a65c2830 100644 +--- a/drivers/iommu/intel_irq_remapping.c ++++ b/drivers/iommu/intel_irq_remapping.c +@@ -1350,6 +1350,8 @@ static int intel_irq_remapping_alloc(struct irq_domain *domain, + irq_data = irq_domain_get_irq_data(domain, virq + i); + irq_cfg = irqd_cfg(irq_data); + if (!irq_data || !irq_cfg) { ++ if (!i) ++ kfree(data); + ret = -EINVAL; + goto out_free_data; + } +diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c +index 8cd7227fbdfce..3dd0bc8804c1a 100644 +--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c ++++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c +@@ -930,6 +930,7 @@ err_destroy_groups: + ft->g[ft->num_groups] = NULL; + mlx5e_destroy_groups(ft); + kvfree(in); ++ kfree(ft->g); + + return err; + } +diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig +index 4e9fe75d70675..069f933b0add2 100644 +--- a/drivers/net/wan/Kconfig ++++ b/drivers/net/wan/Kconfig +@@ -295,6 +295,7 @@ config SLIC_DS26522 + tristate "Slic Maxim ds26522 card support" + depends on SPI + depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST ++ select BITREVERSE + help + This module initializes and configures the slic maxim card + in T1 or E1 mode. +diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig +index 6dfedc8bd6a3d..7df13a684d2df 100644 +--- a/drivers/net/wireless/ath/wil6210/Kconfig ++++ b/drivers/net/wireless/ath/wil6210/Kconfig +@@ -1,6 +1,7 @@ + config WIL6210 + tristate "Wilocity 60g WiFi card wil6210 support" + select WANT_DEV_COREDUMP ++ select CRC32 + depends on CFG80211 + depends on PCI + default n +diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c +index da3834fe5e570..9bb6a574ab2fe 100644 +--- a/drivers/spi/spi-pxa2xx.c ++++ b/drivers/spi/spi-pxa2xx.c +@@ -1606,7 +1606,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) + return -ENODEV; + } + +- master = spi_alloc_master(dev, sizeof(struct driver_data)); ++ master = devm_spi_alloc_master(dev, sizeof(*drv_data)); + if (!master) { + dev_err(&pdev->dev, "cannot alloc spi_master\n"); + pxa_ssp_free(ssp); +@@ -1788,7 +1788,6 @@ out_error_clock_enabled: + free_irq(ssp->irq, drv_data); + + out_error_master_alloc: +- spi_master_put(master); + pxa_ssp_free(ssp); + return status; + } +diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c +index e738b4621cbba..ecd707f74ddcb 100644 +--- a/drivers/target/target_core_transport.c ++++ b/drivers/target/target_core_transport.c +@@ -1736,6 +1736,10 @@ void transport_generic_request_failure(struct se_cmd *cmd, + case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED: + case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED: + case TCM_COPY_TARGET_DEVICE_NOT_REACHABLE: ++ case TCM_TOO_MANY_TARGET_DESCS: ++ case TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE: ++ case TCM_TOO_MANY_SEGMENT_DESCS: ++ case TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE: + break; + case TCM_OUT_OF_RESOURCES: + sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; +@@ -2886,6 +2890,26 @@ static const struct sense_info sense_info_table[] = { + .key = ILLEGAL_REQUEST, + .asc = 0x26, /* INVALID FIELD IN PARAMETER LIST */ + }, ++ [TCM_TOO_MANY_TARGET_DESCS] = { ++ .key = ILLEGAL_REQUEST, ++ .asc = 0x26, ++ .ascq = 0x06, /* TOO MANY TARGET DESCRIPTORS */ ++ }, ++ [TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE] = { ++ .key = ILLEGAL_REQUEST, ++ .asc = 0x26, ++ .ascq = 0x07, /* UNSUPPORTED TARGET DESCRIPTOR TYPE CODE */ ++ }, ++ [TCM_TOO_MANY_SEGMENT_DESCS] = { ++ .key = ILLEGAL_REQUEST, ++ .asc = 0x26, ++ .ascq = 0x08, /* TOO MANY SEGMENT DESCRIPTORS */ ++ }, ++ [TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE] = { ++ .key = ILLEGAL_REQUEST, ++ .asc = 0x26, ++ .ascq = 0x09, /* UNSUPPORTED SEGMENT DESCRIPTOR TYPE CODE */ ++ }, + [TCM_PARAMETER_LIST_LENGTH_ERROR] = { + .key = ILLEGAL_REQUEST, + .asc = 0x1a, /* PARAMETER LIST LENGTH ERROR */ +diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c +index 18848ba8d2ba0..84e3bf1132fd5 100644 +--- a/drivers/target/target_core_xcopy.c ++++ b/drivers/target/target_core_xcopy.c +@@ -52,64 +52,87 @@ static int target_xcopy_gen_naa_ieee(struct se_device *dev, unsigned char *buf) + return 0; + } + +-static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op *xop, +- bool src) ++/** ++ * target_xcopy_locate_se_dev_e4_iter - compare XCOPY NAA device identifiers ++ * ++ * @se_dev: device being considered for match ++ * @dev_wwn: XCOPY requested NAA dev_wwn ++ * @return: 1 on match, 0 on no-match ++ */ ++static int target_xcopy_locate_se_dev_e4_iter(struct se_device *se_dev, ++ const unsigned char *dev_wwn) + { +- struct se_device *se_dev; +- unsigned char tmp_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN], *dev_wwn; ++ unsigned char tmp_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; + int rc; + +- if (src) +- dev_wwn = &xop->dst_tid_wwn[0]; +- else +- dev_wwn = &xop->src_tid_wwn[0]; +- +- mutex_lock(&g_device_mutex); +- list_for_each_entry(se_dev, &g_device_list, g_dev_node) { +- +- if (!se_dev->dev_attrib.emulate_3pc) +- continue; ++ if (!se_dev->dev_attrib.emulate_3pc) { ++ pr_debug("XCOPY: emulate_3pc disabled on se_dev %p\n", se_dev); ++ return 0; ++ } + +- memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN); +- target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]); ++ memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN); ++ target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]); + +- rc = memcmp(&tmp_dev_wwn[0], dev_wwn, XCOPY_NAA_IEEE_REGEX_LEN); +- if (rc != 0) +- continue; ++ rc = memcmp(&tmp_dev_wwn[0], dev_wwn, XCOPY_NAA_IEEE_REGEX_LEN); ++ if (rc != 0) { ++ pr_debug("XCOPY: skip non-matching: %*ph\n", ++ XCOPY_NAA_IEEE_REGEX_LEN, tmp_dev_wwn); ++ return 0; ++ } ++ pr_debug("XCOPY 0xe4: located se_dev: %p\n", se_dev); + +- if (src) { +- xop->dst_dev = se_dev; +- pr_debug("XCOPY 0xe4: Setting xop->dst_dev: %p from located" +- " se_dev\n", xop->dst_dev); +- } else { +- xop->src_dev = se_dev; +- pr_debug("XCOPY 0xe4: Setting xop->src_dev: %p from located" +- " se_dev\n", xop->src_dev); +- } ++ return 1; ++} + +- rc = target_depend_item(&se_dev->dev_group.cg_item); +- if (rc != 0) { +- pr_err("configfs_depend_item attempt failed:" +- " %d for se_dev: %p\n", rc, se_dev); +- mutex_unlock(&g_device_mutex); +- return rc; ++static int target_xcopy_locate_se_dev_e4(struct se_session *sess, ++ const unsigned char *dev_wwn, ++ struct se_device **_found_dev, ++ struct percpu_ref **_found_lun_ref) ++{ ++ struct se_dev_entry *deve; ++ struct se_node_acl *nacl; ++ struct se_lun *this_lun = NULL; ++ struct se_device *found_dev = NULL; ++ ++ /* cmd with NULL sess indicates no associated $FABRIC_MOD */ ++ if (!sess) ++ goto err_out; ++ ++ pr_debug("XCOPY 0xe4: searching for: %*ph\n", ++ XCOPY_NAA_IEEE_REGEX_LEN, dev_wwn); ++ ++ nacl = sess->se_node_acl; ++ rcu_read_lock(); ++ hlist_for_each_entry_rcu(deve, &nacl->lun_entry_hlist, link) { ++ struct se_device *this_dev; ++ int rc; ++ ++ this_lun = rcu_dereference(deve->se_lun); ++ this_dev = rcu_dereference_raw(this_lun->lun_se_dev); ++ ++ rc = target_xcopy_locate_se_dev_e4_iter(this_dev, dev_wwn); ++ if (rc) { ++ if (percpu_ref_tryget_live(&this_lun->lun_ref)) ++ found_dev = this_dev; ++ break; + } +- +- pr_debug("Called configfs_depend_item for se_dev: %p" +- " se_dev->se_dev_group: %p\n", se_dev, +- &se_dev->dev_group); +- +- mutex_unlock(&g_device_mutex); +- return 0; + } +- mutex_unlock(&g_device_mutex); +- ++ rcu_read_unlock(); ++ if (found_dev == NULL) ++ goto err_out; ++ ++ pr_debug("lun_ref held for se_dev: %p se_dev->se_dev_group: %p\n", ++ found_dev, &found_dev->dev_group); ++ *_found_dev = found_dev; ++ *_found_lun_ref = &this_lun->lun_ref; ++ return 0; ++err_out: + pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n"); + return -EINVAL; + } + + static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op *xop, +- unsigned char *p, bool src) ++ unsigned char *p, unsigned short cscd_index) + { + unsigned char *desc = p; + unsigned short ript; +@@ -154,7 +177,13 @@ static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op + return -EINVAL; + } + +- if (src) { ++ if (cscd_index != xop->stdi && cscd_index != xop->dtdi) { ++ pr_debug("XCOPY 0xe4: ignoring CSCD entry %d - neither src nor " ++ "dest\n", cscd_index); ++ return 0; ++ } ++ ++ if (cscd_index == xop->stdi) { + memcpy(&xop->src_tid_wwn[0], &desc[8], XCOPY_NAA_IEEE_REGEX_LEN); + /* + * Determine if the source designator matches the local device +@@ -166,10 +195,15 @@ static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op + pr_debug("XCOPY 0xe4: Set xop->src_dev %p from source" + " received xop\n", xop->src_dev); + } +- } else { ++ } ++ ++ if (cscd_index == xop->dtdi) { + memcpy(&xop->dst_tid_wwn[0], &desc[8], XCOPY_NAA_IEEE_REGEX_LEN); + /* +- * Determine if the destination designator matches the local device ++ * Determine if the destination designator matches the local ++ * device. If @cscd_index corresponds to both source (stdi) and ++ * destination (dtdi), or dtdi comes after stdi, then ++ * XCOL_DEST_RECV_OP wins. + */ + if (!memcmp(&xop->local_dev_wwn[0], &xop->dst_tid_wwn[0], + XCOPY_NAA_IEEE_REGEX_LEN)) { +@@ -189,9 +223,9 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, + { + struct se_device *local_dev = se_cmd->se_dev; + unsigned char *desc = p; +- int offset = tdll % XCOPY_TARGET_DESC_LEN, rc, ret = 0; ++ int offset = tdll % XCOPY_TARGET_DESC_LEN, rc; ++ unsigned short cscd_index = 0; + unsigned short start = 0; +- bool src = true; + + *sense_ret = TCM_INVALID_PARAMETER_LIST; + +@@ -214,25 +248,19 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, + + while (start < tdll) { + /* +- * Check target descriptor identification with 0xE4 type with +- * use VPD 0x83 WWPN matching .. ++ * Check target descriptor identification with 0xE4 type, and ++ * compare the current index with the CSCD descriptor IDs in ++ * the segment descriptor. Use VPD 0x83 WWPN matching .. + */ + switch (desc[0]) { + case 0xe4: + rc = target_xcopy_parse_tiddesc_e4(se_cmd, xop, +- &desc[0], src); ++ &desc[0], cscd_index); + if (rc != 0) + goto out; +- /* +- * Assume target descriptors are in source -> destination order.. +- */ +- if (src) +- src = false; +- else +- src = true; + start += XCOPY_TARGET_DESC_LEN; + desc += XCOPY_TARGET_DESC_LEN; +- ret++; ++ cscd_index++; + break; + default: + pr_err("XCOPY unsupported descriptor type code:" +@@ -241,10 +269,25 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, + } + } + +- if (xop->op_origin == XCOL_SOURCE_RECV_OP) +- rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, true); +- else +- rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, false); ++ switch (xop->op_origin) { ++ case XCOL_SOURCE_RECV_OP: ++ rc = target_xcopy_locate_se_dev_e4(se_cmd->se_sess, ++ xop->dst_tid_wwn, ++ &xop->dst_dev, ++ &xop->remote_lun_ref); ++ break; ++ case XCOL_DEST_RECV_OP: ++ rc = target_xcopy_locate_se_dev_e4(se_cmd->se_sess, ++ xop->src_tid_wwn, ++ &xop->src_dev, ++ &xop->remote_lun_ref); ++ break; ++ default: ++ pr_err("XCOPY CSCD descriptor IDs not found in CSCD list - " ++ "stdi: %hu dtdi: %hu\n", xop->stdi, xop->dtdi); ++ rc = -EINVAL; ++ break; ++ } + /* + * If a matching IEEE NAA 0x83 descriptor for the requested device + * is not located on this node, return COPY_ABORTED with ASQ/ASQC +@@ -261,7 +304,7 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, + pr_debug("XCOPY TGT desc: Dest dev: %p NAA IEEE WWN: 0x%16phN\n", + xop->dst_dev, &xop->dst_tid_wwn[0]); + +- return ret; ++ return cscd_index; + + out: + return -EINVAL; +@@ -305,17 +348,26 @@ static int target_xcopy_parse_segdesc_02(struct se_cmd *se_cmd, struct xcopy_op + + static int target_xcopy_parse_segment_descriptors(struct se_cmd *se_cmd, + struct xcopy_op *xop, unsigned char *p, +- unsigned int sdll) ++ unsigned int sdll, sense_reason_t *sense_ret) + { + unsigned char *desc = p; + unsigned int start = 0; + int offset = sdll % XCOPY_SEGMENT_DESC_LEN, rc, ret = 0; + ++ *sense_ret = TCM_INVALID_PARAMETER_LIST; ++ + if (offset != 0) { + pr_err("XCOPY segment descriptor list length is not" + " multiple of %d\n", XCOPY_SEGMENT_DESC_LEN); + return -EINVAL; + } ++ if (sdll > RCR_OP_MAX_SG_DESC_COUNT * XCOPY_SEGMENT_DESC_LEN) { ++ pr_err("XCOPY supports %u segment descriptor(s), sdll: %u too" ++ " large..\n", RCR_OP_MAX_SG_DESC_COUNT, sdll); ++ /* spc4r37 6.4.3.5 SEGMENT DESCRIPTOR LIST LENGTH field */ ++ *sense_ret = TCM_TOO_MANY_SEGMENT_DESCS; ++ return -EINVAL; ++ } + + while (start < sdll) { + /* +@@ -372,18 +424,12 @@ static int xcopy_pt_get_cmd_state(struct se_cmd *se_cmd) + + static void xcopy_pt_undepend_remotedev(struct xcopy_op *xop) + { +- struct se_device *remote_dev; +- + if (xop->op_origin == XCOL_SOURCE_RECV_OP) +- remote_dev = xop->dst_dev; ++ pr_debug("putting dst lun_ref for %p\n", xop->dst_dev); + else +- remote_dev = xop->src_dev; ++ pr_debug("putting src lun_ref for %p\n", xop->src_dev); + +- pr_debug("Calling configfs_undepend_item for" +- " remote_dev: %p remote_dev->dev_group: %p\n", +- remote_dev, &remote_dev->dev_group.cg_item); +- +- target_undepend_item(&remote_dev->dev_group.cg_item); ++ percpu_ref_put(xop->remote_lun_ref); + } + + static void xcopy_pt_release_cmd(struct se_cmd *se_cmd) +@@ -893,6 +939,20 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) + " tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage, + tdll, sdll, inline_dl); + ++ /* ++ * skip over the target descriptors until segment descriptors ++ * have been passed - CSCD ids are needed to determine src and dest. ++ */ ++ seg_desc = &p[16] + tdll; ++ ++ rc = target_xcopy_parse_segment_descriptors(se_cmd, xop, seg_desc, ++ sdll, &ret); ++ if (rc <= 0) ++ goto out; ++ ++ pr_debug("XCOPY: Processed %d segment descriptors, length: %u\n", rc, ++ rc * XCOPY_SEGMENT_DESC_LEN); ++ + rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll, &ret); + if (rc <= 0) + goto out; +@@ -910,18 +970,8 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) + + pr_debug("XCOPY: Processed %d target descriptors, length: %u\n", rc, + rc * XCOPY_TARGET_DESC_LEN); +- seg_desc = &p[16]; +- seg_desc += (rc * XCOPY_TARGET_DESC_LEN); +- +- rc = target_xcopy_parse_segment_descriptors(se_cmd, xop, seg_desc, sdll); +- if (rc <= 0) { +- xcopy_pt_undepend_remotedev(xop); +- goto out; +- } + transport_kunmap_data_sg(se_cmd); + +- pr_debug("XCOPY: Processed %d segment descriptors, length: %u\n", rc, +- rc * XCOPY_SEGMENT_DESC_LEN); + INIT_WORK(&xop->xop_work, target_xcopy_do_work); + queue_work(xcopy_wq, &xop->xop_work); + return TCM_NO_SENSE; +diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h +index 700a981c7b415..7db8d0c9223f8 100644 +--- a/drivers/target/target_core_xcopy.h ++++ b/drivers/target/target_core_xcopy.h +@@ -19,6 +19,7 @@ struct xcopy_op { + struct se_device *dst_dev; + unsigned char dst_tid_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; + unsigned char local_dev_wwn[XCOPY_NAA_IEEE_REGEX_LEN]; ++ struct percpu_ref *remote_lun_ref; + + sector_t src_lba; + sector_t dst_lba; +diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c +index 9213a9e046ae0..99caaae01caba 100644 +--- a/fs/ubifs/io.c ++++ b/fs/ubifs/io.c +@@ -331,7 +331,7 @@ void ubifs_pad(const struct ubifs_info *c, void *buf, int pad) + { + uint32_t crc; + +- ubifs_assert(pad >= 0 && !(pad & 7)); ++ ubifs_assert(pad >= 0); + + if (pad >= UBIFS_PAD_NODE_SZ) { + struct ubifs_ch *ch = buf; +@@ -721,6 +721,10 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len) + * write-buffer. + */ + memcpy(wbuf->buf + wbuf->used, buf, len); ++ if (aligned_len > len) { ++ ubifs_assert(aligned_len - len < 8); ++ ubifs_pad(c, wbuf->buf + wbuf->used + len, aligned_len - len); ++ } + + if (aligned_len == wbuf->avail) { + dbg_io("flush jhead %s wbuf to LEB %d:%d", +@@ -813,13 +817,18 @@ int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len) + } + + spin_lock(&wbuf->lock); +- if (aligned_len) ++ if (aligned_len) { + /* + * And now we have what's left and what does not take whole + * max. write unit, so write it to the write-buffer and we are + * done. + */ + memcpy(wbuf->buf, buf + written, len); ++ if (aligned_len > len) { ++ ubifs_assert(aligned_len - len < 8); ++ ubifs_pad(c, wbuf->buf + len, aligned_len - len); ++ } ++ } + + if (c->leb_size - wbuf->offs >= c->max_write_size) + wbuf->size = c->max_write_size; +diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h +index 4fdb1d9848444..36198563fb8bc 100644 +--- a/include/asm-generic/vmlinux.lds.h ++++ b/include/asm-generic/vmlinux.lds.h +@@ -460,7 +460,10 @@ + */ + #define TEXT_TEXT \ + ALIGN_FUNCTION(); \ +- *(.text.hot TEXT_MAIN .text.fixup .text.unlikely) \ ++ *(.text.hot .text.hot.*) \ ++ *(TEXT_MAIN .text.fixup) \ ++ *(.text.unlikely .text.unlikely.*) \ ++ *(.text.unknown .text.unknown.*) \ + *(.ref.text) \ + MEM_KEEP(init.text) \ + MEM_KEEP(exit.text) \ +diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h +index 30f99ce4c6cea..8a70d38f13329 100644 +--- a/include/target/target_core_base.h ++++ b/include/target/target_core_base.h +@@ -178,6 +178,10 @@ enum tcm_sense_reason_table { + TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), + TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), + TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18), ++ TCM_TOO_MANY_TARGET_DESCS = R(0x19), ++ TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE = R(0x1a), ++ TCM_TOO_MANY_SEGMENT_DESCS = R(0x1b), ++ TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE = R(0x1c), + #undef R + }; + +diff --git a/net/core/skbuff.c b/net/core/skbuff.c +index a4c4234976862..026f4525063c1 100644 +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -1592,6 +1592,12 @@ int pskb_trim_rcsum_slow(struct sk_buff *skb, unsigned int len) + skb->csum = csum_block_sub(skb->csum, + skb_checksum(skb, len, delta, 0), + len); ++ } else if (skb->ip_summed == CHECKSUM_PARTIAL) { ++ int hdlen = (len > skb_headlen(skb)) ? skb_headlen(skb) : len; ++ int offset = skb_checksum_start_offset(skb) + skb->csum_offset; ++ ++ if (offset + sizeof(__sum16) > hdlen) ++ return -EINVAL; + } + return __pskb_trim(skb, len); + } +diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c +index c37e9598262e5..3164bae4024a4 100644 +--- a/net/ipv4/ip_output.c ++++ b/net/ipv4/ip_output.c +@@ -300,7 +300,7 @@ static int ip_finish_output(struct net *net, struct sock *sk, struct sk_buff *sk + if (skb_is_gso(skb)) + return ip_finish_output_gso(net, sk, skb, mtu); + +- if (skb->len > mtu || (IPCB(skb)->flags & IPSKB_FRAG_PMTU)) ++ if (skb->len > mtu || IPCB(skb)->frag_max_size) + return ip_fragment(net, sk, skb, mtu, ip_finish_output2); + + return ip_finish_output2(net, sk, skb); +diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c +index 5f2e3334cccec..26e1dbc958189 100644 +--- a/net/ipv4/ip_tunnel.c ++++ b/net/ipv4/ip_tunnel.c +@@ -743,7 +743,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, + goto tx_error; + } + +- if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off, inner_iph)) { ++ df = tnl_params->frag_off; ++ if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df) ++ df |= (inner_iph->frag_off & htons(IP_DF)); ++ ++ if (tnl_update_pmtu(dev, skb, rt, df, inner_iph)) { + ip_rt_put(rt); + goto tx_error; + } +@@ -771,10 +775,6 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, + ttl = ip4_dst_hoplimit(&rt->dst); + } + +- df = tnl_params->frag_off; +- if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df) +- df |= (inner_iph->frag_off&htons(IP_DF)); +- + max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr) + + rt->dst.header_len + ip_encap_hlen(&tunnel->encap); + if (max_headroom > dev->needed_headroom)
