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2023-08-22wifi: radiotap: fix kernel-doc notation warningsRandy Dunlap
Fix a typo (82011 -> 80211) to prevent a kernel-doc warning. Add one missing function parameter description to prevent a kernel-doc warning. ieee80211_radiotap.h:52: warning: expecting prototype for struct ieee82011_radiotap_header. Prototype was for struct ieee80211_radiotap_header instead ieee80211_radiotap.h:581: warning: Function parameter or member 'data' not described in 'ieee80211_get_radiotap_len' Fixes: 42f82e2e62ae ("wireless: radiotap: rewrite the radiotap header file") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: linux-wireless@vger.kernel.org Link: https://lore.kernel.org/r/20230710230312.31197-7-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: remove dead/unused enum valueRandy Dunlap
Drop an unused (extra) enum value to prevent a kernel-doc warning. cfg80211.h:1492: warning: Excess enum value 'STATION_PARAM_APPLY_STA_TXPOWER' description in 'station_parameters_apply_mask' Fixes: 2d8b08fef0af ("wifi: cfg80211: fix kernel-doc warnings all over the file") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: linux-wireless@vger.kernel.org Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/20230710230312.31197-3-rdunlap@infradead.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: improve documentation for flag fieldsDmitry Antipov
Fix and hopefully improve documentation for 'flag' fields of a few types by adding references to relevant enumerations. Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> Link: https://lore.kernel.org/r/20230713132957.275859-1-dmantipov@yandex.ru Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: wext: Remove unused declaration dev_get_wireless_info()Yue Haibing
Commit 556829657397 ("[NL80211]: add netlink interface to cfg80211") declared but never implemented this, remove it. Commit 11433ee450eb ("[WEXT]: Move to net/wireless") rename net/core/wireless.c to net/wireless/wext.c, then commit 3d23e349d807 ("wext: refactor") refactor wext.c to wext-core.c, fix the wext comment. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230807145032.44768-1-yuehaibing@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22PM: runtime: Remove unsued extern declaration of ↵YueHaibing
pm_runtime_update_max_time_suspended() Commit 76e267d822f2 ("PM / Runtime: Remove device fields related to suspend time, v2") left behind this. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-08-22Merge tag 'wireless-2023-08-22' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== Two fixes: - reorder buffer filter checks can cause bad shift/UBSAN warning with newer HW, avoid the check (mac80211) - add Kconfig dependency for iwlwifi for PTP clock usage * tag 'wireless-2023-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: mac80211: limit reorder_buf_filtered to avoid UBSAN warning wifi: iwlwifi: mvm: add dependency for PTP clock ==================== Link: https://lore.kernel.org/r/20230822124206.43926-2-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-22net: mscc: ocelot: Remove unused declarationsYue Haibing
Commit 6c30384eb1de ("net: mscc: ocelot: register devlink ports") declared but never implemented ocelot_devlink_init() and ocelot_devlink_teardown(). Commit 2096805497e2 ("net: mscc: ocelot: automatically detect VCAP constants") declared but never implemented ocelot_detect_vcap_constants(). Commit 403ffc2c34de ("net: mscc: ocelot: add support for preemptible traffic classes") declared but never implemented ocelot_port_update_preemptible_tcs(). Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20230821130218.19096-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-22block: sed-opal: keyring support for SED keysGreg Joyce
Extend the SED block driver so it can alternatively obtain a key from a sed-opal kernel keyring. The SED ioctls will indicate the source of the key, either directly in the ioctl data or from the keyring. This allows the use of SED commands in scripts such as udev scripts so that drives may be automatically unlocked as they become available. Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> Reviewed-by: Jonathan Derrick <jonathan.derrick@linux.dev> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lore.kernel.org/r/20230721211534.3437070-4-gjoyce@linux.vnet.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-08-22block: sed-opal: Implement IOC_OPAL_REVERT_LSPGreg Joyce
This is used in conjunction with IOC_OPAL_REVERT_TPR to return a drive to Original Factory State without erasing the data. If IOC_OPAL_REVERT_LSP is called with opal_revert_lsp.options bit OPAL_PRESERVE set prior to calling IOC_OPAL_REVERT_TPR, the drive global locking range will not be erased. Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jonathan Derrick <jonathan.derrick@linux.dev> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lore.kernel.org/r/20230721211534.3437070-3-gjoyce@linux.vnet.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-08-22block: sed-opal: Implement IOC_OPAL_DISCOVERYGreg Joyce
Add IOC_OPAL_DISCOVERY ioctl to return raw discovery data to a SED Opal application. This allows the application to display drive capabilities and state. Signed-off-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jonathan Derrick <jonathan.derrick@linux.dev> Acked-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lore.kernel.org/r/20230721211534.3437070-2-gjoyce@linux.vnet.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-08-22netfilter: ebtables: replace zero-length array membersGONG, Ruiqi
As suggested by Kees[1], replace the old-style 0-element array members of multiple structs in ebtables.h with modern C99 flexible array. [1]: https://lore.kernel.org/all/5E8E0F9C-EE3F-4B0D-B827-DC47397E2A4A@kernel.org/ [ fw@strlen.de: keep struct ebt_entry_target as-is, causes compiler warning: "variable sized type 'struct ebt_entry_target' not at the end of a struct or class is a GNU extension" ] Link: https://github.com/KSPP/linux/issues/21 Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Florian Westphal <fw@strlen.de>
2023-08-22netfilter: ebtables: fix fortify warnings in size_entry_mwt()GONG, Ruiqi
When compiling with gcc 13 and CONFIG_FORTIFY_SOURCE=y, the following warning appears: In function ‘fortify_memcpy_chk’, inlined from ‘size_entry_mwt’ at net/bridge/netfilter/ebtables.c:2118:2: ./include/linux/fortify-string.h:592:25: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning] 592 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The compiler is complaining: memcpy(&offsets[1], &entry->watchers_offset, sizeof(offsets) - sizeof(offsets[0])); where memcpy reads beyong &entry->watchers_offset to copy {watchers,target,next}_offset altogether into offsets[]. Silence the warning by wrapping these three up via struct_group(). Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Florian Westphal <fw@strlen.de>
2023-08-22Add cs42l43 PC focused SoundWire CODECMark Brown
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: This patch chain adds support for the Cirrus Logic cs42l43 PC focused SoundWire CODEC. The chain is currently based of Lee's for-mfd-next branch. This series is mostly just a resend keeping pace with the kernel under it, except for a minor fixup in the ASoC stuff. Thanks, Charles Charles Keepax (4): dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding mfd: cs42l43: Add support for cs42l43 core driver pinctrl: cs42l43: Add support for the cs42l43 ASoC: cs42l43: Add support for the cs42l43 Lucas Tanure (2): soundwire: bus: Allow SoundWire peripherals to register IRQ handlers spi: cs42l43: Add SPI controller support .../bindings/sound/cirrus,cs42l43.yaml | 313 +++ MAINTAINERS | 4 + drivers/mfd/Kconfig | 23 + drivers/mfd/Makefile | 3 + drivers/mfd/cs42l43-i2c.c | 98 + drivers/mfd/cs42l43-sdw.c | 239 ++ drivers/mfd/cs42l43.c | 1188 +++++++++ drivers/mfd/cs42l43.h | 28 + drivers/pinctrl/cirrus/Kconfig | 11 + drivers/pinctrl/cirrus/Makefile | 2 + drivers/pinctrl/cirrus/pinctrl-cs42l43.c | 609 +++++ drivers/soundwire/bus.c | 32 + drivers/soundwire/bus_type.c | 12 + drivers/spi/Kconfig | 7 + drivers/spi/Makefile | 1 + drivers/spi/spi-cs42l43.c | 284 ++ include/linux/mfd/cs42l43-regs.h | 1184 +++++++++ include/linux/mfd/cs42l43.h | 102 + include/linux/soundwire/sdw.h | 9 + include/sound/cs42l43.h | 17 + sound/soc/codecs/Kconfig | 16 + sound/soc/codecs/Makefile | 4 + sound/soc/codecs/cs42l43-jack.c | 946 +++++++ sound/soc/codecs/cs42l43-sdw.c | 74 + sound/soc/codecs/cs42l43.c | 2278 +++++++++++++++++ sound/soc/codecs/cs42l43.h | 131 + 26 files changed, 7615 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml create mode 100644 drivers/mfd/cs42l43-i2c.c create mode 100644 drivers/mfd/cs42l43-sdw.c create mode 100644 drivers/mfd/cs42l43.c create mode 100644 drivers/mfd/cs42l43.h create mode 100644 drivers/pinctrl/cirrus/pinctrl-cs42l43.c create mode 100644 drivers/spi/spi-cs42l43.c create mode 100644 include/linux/mfd/cs42l43-regs.h create mode 100644 include/linux/mfd/cs42l43.h create mode 100644 include/sound/cs42l43.h create mode 100644 sound/soc/codecs/cs42l43-jack.c create mode 100644 sound/soc/codecs/cs42l43-sdw.c create mode 100644 sound/soc/codecs/cs42l43.c create mode 100644 sound/soc/codecs/cs42l43.h -- 2.30.2
2023-08-22net: remove unnecessary input parameter 'how' in ifdown functionZhengchao Shao
When the ifdown function in the dst_ops structure is referenced, the input parameter 'how' is always true. In the current implementation of the ifdown interface, ip6_dst_ifdown does not use the input parameter 'how', xfrm6_dst_ifdown and xfrm4_dst_ifdown functions use the input parameter 'unregister'. But false judgment on 'unregister' in xfrm6_dst_ifdown and xfrm4_dst_ifdown is false, so remove the input parameter 'how' in ifdown function. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230821084104.3812233-1-shaozhengchao@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_tid_config with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_tid_config. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-7-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_scan_request with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_scan_request. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-6-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_rnr_elems with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_rnr_elems. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-5-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_pmsr_request with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_pmsr_request. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-4-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_mbssid_elems with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_mbssid_elems. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-3-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22wifi: cfg80211: Annotate struct cfg80211_acl_data with __counted_byKees Cook
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct cfg80211_acl_data. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Link: https://lore.kernel.org/r/20230817211531.4193219-1-keescook@chromium.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-08-22xen: privcmd: Add support for irqfdViresh Kumar
Xen provides support for injecting interrupts to the guests via the HYPERVISOR_dm_op() hypercall. The same is used by the Virtio based device backend implementations, in an inefficient manner currently. Generally, the Virtio backends are implemented to work with the Eventfd based mechanism. In order to make such backends work with Xen, another software layer needs to poll the Eventfds and raise an interrupt to the guest using the Xen based mechanism. This results in an extra context switch. This is not a new problem in Linux though. It is present with other hypervisors like KVM, etc. as well. The generic solution implemented in the kernel for them is to provide an IOCTL call to pass the interrupt details and eventfd, which lets the kernel take care of polling the eventfd and raising of the interrupt, instead of handling this in user space (which involves an extra context switch). This patch adds support to inject a specific interrupt to guest using the eventfd mechanism, by preventing the extra context switch. Inspired by existing implementations for KVM, etc.. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/8e724ac1f50c2bc1eb8da9b3ff6166f1372570aa.1692697321.git.viresh.kumar@linaro.org Signed-off-by: Juergen Gross <jgross@suse.com>
2023-08-22acpi/prmt: Use EFI runtime sandbox to invoke PRM handlersArd Biesheuvel
Instead of bypassing the kernel's adaptation layer for performing EFI runtime calls, wire up ACPI PRM handling into it. This means these calls can no longer occur concurrently with EFI runtime calls, and will be made from the EFI runtime workqueue. It also means any page faults occurring during PRM handling will be identified correctly as originating in firmware code. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-08-22efi/runtime-wrappers: Don't duplicate setup/teardown codeArd Biesheuvel
Avoid duplicating the EFI arch setup and teardown routine calls numerous times in efi_call_rts(). Instead, expand the efi_call_virt_pointer() macro into efi_call_rts(), taking the pre and post parts out of the switch. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-08-22efi/runtime-wrappers: Remove duplicated macro for service returning voidArd Biesheuvel
__efi_call_virt() exists as an alternative for efi_call_virt() for the sole reason that ResetSystem() returns void, and so we cannot use a call to it in the RHS of an assignment. Given that there is only a single user, let's drop the macro, and expand it into the caller. That way, the remaining macro can be tightened somewhat in terms of type safety too. Note that the use of typeof() on the runtime service invocation does not result in an actual call being made, but it does require a few pointer types to be fixed up and converted into the proper function pointer prototypes. Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-08-22drm/display/dp: Fix the DP DSC Receiver cap sizeAnkit Nautiyal
DP DSC Receiver Capabilities are exposed via DPCD 60h-6Fh. Fix the DSC RECEIVER CAP SIZE accordingly. Fixes: ffddc4363c28 ("drm/dp: Add DP DSC DPCD receiver capability size define and missing SHIFT") Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: <stable@vger.kernel.org> # v5.0+ Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230818044436.177806-1-ankit.k.nautiyal@intel.com
2023-08-21Merge tag 'socfpga_dts_updates_for_v6.6' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into soc/dt SoCFPGA DTS updates for v6.6 - Fix dtbs_check warnings for usbphy, sram, rstmgr, memory, partitions - Updated "stmmaceth-ocp" reset-names to "ahb" for stmmac ethernet - Add initial support for Agilex5 * tag 'socfpga_dts_updates_for_v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: arm64: dts: agilex5: add initial support for Intel Agilex5 SoCFPGA dt-bindings: clock: add Intel Agilex5 clock manager dt-bindings: reset: add reset IDs for Agilex5 dt-bindings: intel: Add Intel Agilex5 compatible arm64: dts: socfpga: change the reset-name of "stmmaceth-ocp" to "ahb" arm64: dts: socfpga: n5x/stratix10: fix dtbs_check warning for partitions arm64: dts: agilex/stratix10: Updated QSPI Flash layout for UBIFS arm64: dts: agilex/stratix10/n5x: fix dtbs_check for rstmgr arm64: dts: stratix10/agilex/n5x: fix dtbs_check warning for memory node arm64: dts: socfpga: stratix10: fix dtbs_check warning for usbphy arm64: dts: socfpga: agilex/stratix10: fix dtbs_check warnings for sram Link: https://lore.kernel.org/r/20230819161418.931258-1-dinguyen@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-21Merge tag 'qcom-arm64-for-6.6' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/dt Qualcomm ARM64 DeviceTree updates for v6.6 Initial support for the SM4450 platform and the QRD device thereon is added. The IPQ5018 platform is introduced, and the RDP432-C2 board thereon. A shared definition of the IPQ5332 RDP is introduced, as is GPIO-based LEDs and buttons. On the IPQ9574 RDP433 USB, CPU cooling maps and regulators are added. On MSM8916, the D3 camera mezzanine is improved and refactored out to its own dts. The Samsung Galaxy S4 Mini gains support for its PMIC with charger, while Samsung Galaxy J5 and E5 gains touchscreen support. A few fixes for MSM8939 are introduced, and initial support for Samsung Galaxy A7 is add. Support for scaling the cache bus fabric is introduced on MSM8996. A missing interrupt for the USB2 controller is added. The touchscreen vio supply on Xiaomi Mi 5 is corrected, and a few other cleanups are introduces across other devices. The display controller is introduced for MSM8998, a few clock fixes are introduced and missing power domains are added for the multimedia subsystem iommu. Reserved memory-regions and reserved GPIO lists are updated for the QDU/QRU1000 IDPs. USB3 PHY is added to the QCM2290, the RB1 gains regulators and GPU is enabled for the RB2. PCIe and Ethernet support is introduced on SA8775P, and enabled for the Ride board. On SC7180 the PSCI integration is refactored, to allow supporting devices with the Qualcomm firmware. BWMON is introduced, alongside the CPUfreq-based bus voting. A number of fixes are added for SC8180X, on the Primus and Lenovo Flex 5G devices pmic_glink is introduced and wired up, to provide support for external display. Missing SCM interconnect is added to SC8280XP, and the PDC is marked as wakeup-parent of TLMM. On the CRD the gpio for vreg_misc_3p3 is corrected and a few regulators are renamed to align with schematics. The Lenovo Thinkpad X13s gains camera activity LED and a set of previously reserved GPIOs are released. The SA8540P Ride platform gains RTC support. For SDM670 CPU and L3 frequency scaling is added, the PDC is introduced and wired up as wakeup-parent of the TLMM. On SDM845 the UFS controller gains interconnect path description, power-domain information is added to GCC and minimum frequency of the UFS ICE is corrected. On RB3 continuous splash memory region is described, and the camera subsystem is enabled. On the Lenovo Yoga C630 a missing power supply for the display panel is added, and the debug UART is introduced. SDX75 RPMh power-domains and SPMI controller are introduces, the PMX75 PMIC is described and added to the IDP. GPU description is added to SM6115, and together with display enabled on the Lenovo Tab P11. On SM635 BWMON is introduced for LLCC and DDR scaling. Display and GPU is added, and the PDC is registered as wakeup-parent of TLMM. L3 cache scaling is introduced on SM6375. The DSI PHY compatible and an interrupt for I2C7 are corrected for SM8150, on the Sony Xperia 1 and 5 the ramoops pmsg size is corrected. On SM8250 BWMONs are introduced for DDR and LLCC scaling, the UFS node gains interconnect paths, SMMU is marked as DMA coherent and dynamic power coefficients are updated. On Sony Xperia 1 II and 5 II GPIO line names are updated. On SM8350 missing cluster sleep states and LMH interrupts are added, the CPU compatibles are corrected and APR and LPASS pinctrl support is introduced. The HDK gains uSD card support and PMK8350 is added. For SM8450 support for RNG and RPMh stats are added, the ICE handling is extracted from the UFS node and the display subsystem gains a missing interconnect path. Thermal description is improved for the HDK. On SM8550 MTP and QRD the pmic_glink is introduced, to provide DisplayPort output. A missing regulator supply is also added. A few platforms that happens to share the RPMH power-domain resource identifier constants are migrated to new generic defines. ADC channel names are generalized on various PMICs. A variety of devices gain chassis-type, and the GIC_SPI constant is replacing the 0 across a few different platforms. * tag 'qcom-arm64-for-6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (215 commits) arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved arm64: dts: qcom: sm6350: Hook up PDC as wakeup-parent of TLMM arm64: dts: qcom: sdm670: Hook up PDC as wakeup-parent of TLMM arm64: dts: qcom: sa8775p: Hook up PDC as wakeup-parent of TLMM arm64: dts: qcom: sc8280xp: Hook up PDC as wakeup-parent of TLMM arm64: dts: qcom: sdm670: Add PDC arm64: dts: qcom: msm8916-samsung-e5: Add touchscreen arm64: dts: qcom: sc7180: Split up TF-A related PSCI configuration arm64: dts: qcom: sc8280xp-x13s: Add camera activity LED arm64: dts: qcom: sc8280xp-x13s: Unreserve NC pins arm64: dts: qcom: msm8998: Add DPU1 nodes arm64: dts: qcom: msm8996: Fix dsi1 interrupts arm64: dts: qcom: sdx75-idp: Add regulator nodes arm64: dts: qcom: sdx75: Add rpmhpd node arm64: dts: qcom: sdx75-idp: Add pmics supported in SDX75 arm64: dts: qcom: Add pmx75 PMIC dtsi arm64: dts: qcom: Add pm7550ba PMIC dtsi arm64: dts: qcom: Add pinctrl gpio support for pm7250b arm64: dts: qcom: sdx75: Add spmi node arm64: dts: qcom: msm8998: Add missing power domain to MMSS SMMU ... Link: https://lore.kernel.org/r/20230819034551.2537866-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-21Merge tag 'stm32-dt-for-v6.6-1' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/dt STM32 DT for v6.6, round 1 Highlights: ---------- - MCU: - Add CAN support on stm32f746. - Add touchscreen support (edt-ft5306) on stm32f746-disco. - Add support to Rocktech RK043FN48H display on stm32f746-disco board. - Add gpio-ranges for stm32f7 to fix boot issue. - MPU: - STM32MP13: - Remove shmem for scmi-optee to match with OP-TEE configuration. - Enable OP-TEE asynchronous notification by using PPI#15. - Expose and use SCMI regulators on stm32mp135f-dk. - STMP32MP15: - Remove shmem for scmi-optee to match with OPTEE configuration - Deduplicate DSI node to fix #address-cells/#size-cells issue on boards using it. - ST: - Fix dts check warnings on stm32mp15-scmi boards. - DH: - Add missing detach mailbox for DHCOM and DHCOR SoM. - Odyssey: - Add missing detach mailbox for Odyssey SoM. - OCTAVO: - Add Linux Automation Test Automation Controller (LXA TAC) based on Octavo Systems OSD32MP15x SiP. It contains: eMMC, DSA-capable ETH switch (2 ports), dual CAN... It adds two boards support: lxa-tac-gen1 and lxa-tac-gen2 based on STM32MP157. - PROTONIC: - Add Power over Data Line (PoDL) Power Source Equipment (PSE) regulator nodes on PRTT1C board. It allows power delivery and data transmission over a single twisted pair. * tag 'stm32-dt-for-v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: (29 commits) ARM: dts: stm32: add SCMI PMIC regulators on stm32mp135f-dk board ARM: dts: stm32: STM32MP13x SoC exposes SCMI regulators dt-bindings: rcc: stm32: add STM32MP13 SCMI regulators IDs ARM: dts: stm32: support display on stm32f746-disco board ARM: dts: stm32: rename mmc_vcard to vcc-3v3 on stm32f746-disco ARM: dts: stm32: add pin map for LTDC on stm32f7 ARM: dts: stm32: add ltdc support on stm32f746 MCU ARM: dts: st: Add gpio-ranges for stm32f769-pinctrl ARM: dts: st: Add gpio-ranges for stm32f746-pinctrl ARM: dts: st: stm32mp157c-emstamp: correct regulator-active-discharge ARM: dts: st: stm32mp157c-emstamp: drop incorrect vref_ddr property ARM: dts: stm32: fix dts check warnings on stm32mp15-scmi ARM: dts: stm32: Add missing detach mailbox for DHCOR SoM ARM: dts: stm32: Add missing detach mailbox for DHCOM SoM ARM: dts: stm32: Add missing detach mailbox for Odyssey SoM ARM: dts: stm32: Add missing detach mailbox for emtrion emSBC-Argon ARM: dts: stm32: prtt1c: Add PoDL PSE regulator nodes ARM: dts: stm32: add touchscreen on stm32f746-disco board ARM: dts: stm32: add pin map for i2c3 controller on stm32f7 ARM: dts: stm32: re-add CAN support on stm32f746 ... Link: https://lore.kernel.org/r/c0524a16-ab27-0cb5-8e7b-c12f7bde7e0d@foss.st.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-21Merge tag 'qcom-drivers-for-6.6' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers Qualcomm driver updates for v6.6 Compatible and clock handling in the Qualcomm SCM driver is cleaned up, together with a couple stylistic cleanups and transition to mark exported symbols GPL only. An abstraction for the RPM subsystem is introduced, to make align the structure of the SMD and GLINK nodes thereof with the structure when a remoteproc is involved. This is done to facilitate associating additional entities with the RPM subsystem. The qmp_send() API is modified to not expose hardware requirements onto the client drivers, and then further extended to allow command formatting directly in the API, to facilitate this typical use case. In the Qualcomm Command DB driver, NUL characters previously included in identifiers are dropped from the debugfs, to facilitate scripting. The thresholds of the BWMON driver are simplified to avoid hard coded starting values. The OCMEM driver is updated with some cleanups and fixes, and addition of MSM8226 support. PMIC_GLINK gains support for retimer switches, safe mode is selected when the cable is disconnected from altmode and the same is enabled for SM8550. An off-by-one string length check is corrected in the QMI encoder decoder library. The RPMh tracepoints are extended to include the state of the request, to provide needed context in the traced events. The series from Ulf creating a genpd framework is integrated, to facilitate the other changes to the cpr, rpmpd and rpmhpd driver. SDX75 support is added to the rpmhpd driver, and the rpmpd driver is extended with the same sync_state logic found in the rpmhpd driver. The socinfo driver gains knowledge about SM4450 and SM7125, the IPQ5019 platform is dropped. Clock handling in the GSBI driver is cleaned up with the use of devm_clk_get_enabled(). The list of VMIDs defined for the SCM assign memory interface is extended. * tag 'qcom-drivers-for-6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (52 commits) soc: qcom: aoss: Tidy up qmp_send() callers soc: qcom: aoss: Format string in qmp_send() soc: qcom: aoss: Move length requirements from caller dt-bindings: firmware: qcom: scm: Updating VMID list dt-bindings: qcom: Update RPMHPD entries for some SoCs soc: qcom: qmi_encdec: Restrict string length in decode soc: qcom: smem: Fix incompatible types in comparison soc: qcom: ocmem: add missing clk_disable_unprepare() in ocmem_dev_probe() soc: qcom: socinfo: Add SoC ID for SM7125 dt-bindings: arm: qcom,ids: Add SoC ID for SM7125 dt-bindings: arm: qcom,ids: drop the IPQ5019 SoC ID soc: qcom: socinfo: drop the IPQ5019 SoC ID soc: qcom: socinfo: add SM4450 ID dt-bindings: arm: qcom,ids: add SoC ID for SM4450 soc: qcom: pmic_glink: enable altmode for SM8550 soc: qcom: pmic_glink_altmode: add retimer-switch support soc: qcom: pmic_glink_altmode: handle safe mode when disconnect soc: qcom: rpmhpd: Add SDX75 power domains dt-bindings: power: qcom,rpmpd: Add compatible for sdx75 genpd: Makefile: build imx ... Link: https://lore.kernel.org/r/20230818023338.2484467-1-andersson@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-08-21bpf: Add pid filter support for uprobe_multi linkJiri Olsa
Adding support to specify pid for uprobe_multi link and the uprobes are created only for task with given pid value. Using the consumer.filter filter callback for that, so the task gets filtered during the uprobe installation. We still need to check the task during runtime in the uprobe handler, because the handler could get executed if there's another system wide consumer on the same uprobe (thanks Oleg for the insight). Cc: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230809083440.3209381-6-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-21bpf: Add cookies support for uprobe_multi linkJiri Olsa
Adding support to specify cookies array for uprobe_multi link. The cookies array share indexes and length with other uprobe_multi arrays (offsets/ref_ctr_offsets). The cookies[i] value defines cookie for i-the uprobe and will be returned by bpf_get_attach_cookie helper when called from ebpf program hooked to that specific uprobe. Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230809083440.3209381-5-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-21bpf: Add multi uprobe linkJiri Olsa
Adding new multi uprobe link that allows to attach bpf program to multiple uprobes. Uprobes to attach are specified via new link_create uprobe_multi union: struct { __aligned_u64 path; __aligned_u64 offsets; __aligned_u64 ref_ctr_offsets; __u32 cnt; __u32 flags; } uprobe_multi; Uprobes are defined for single binary specified in path and multiple calling sites specified in offsets array with optional reference counters specified in ref_ctr_offsets array. All specified arrays have length of 'cnt'. The 'flags' supports single bit for now that marks the uprobe as return probe. Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230809083440.3209381-4-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-21bpf: Switch BPF_F_KPROBE_MULTI_RETURN macro to enumJiri Olsa
Switching BPF_F_KPROBE_MULTI_RETURN macro to anonymous enum, so it'd show up in vmlinux.h. There's not functional change compared to having this as macro. Acked-by: Yafang Shao <laoar.shao@gmail.com> Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230809083440.3209381-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-08-21mm: add tail private fields to struct folioMatthew Wilcox (Oracle)
Because THP_SWAP uses page->private for each page, we must not use the space which overlaps that field for anything which would conflict with that. We avoid the conflict on 32-bit systems by disallowing THP_SWAP on 32-bit. Link: https://lkml.kernel.org/r/20230816151201.3655946-13-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: remove folio_test_transhuge()Matthew Wilcox (Oracle)
This function is misleading; people think it means "Is this a THP", when all it actually does is check whether this is a large folio. Remove it; the one remaining user should have been checking to see whether the folio is PMD sized or not. Link: https://lkml.kernel.org/r/20230816151201.3655946-12-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: free up a word in the first tail pageMatthew Wilcox (Oracle)
Store the folio order in the low byte of the flags word in the first tail page. This frees up the word that was being used to store the order and dtor bytes previously. Link: https://lkml.kernel.org/r/20230816151201.3655946-11-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: rearrange page flagsMatthew Wilcox (Oracle)
Move PG_writeback into bottom byte so that it can use PG_waiters in a later patch. Move PG_head into bottom byte as well to match with where 'order' is moving next. PG_active and PG_workingset move into the second byte to make room for them. By putting PG_head in bit 6, we ensure that it is cleared by assigning the folio order to the bottom byte of the first tail page (since the order cannot be larger than 63). Link: https://lkml.kernel.org/r/20230816151201.3655946-10-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: add large_rmappable page flagMatthew Wilcox (Oracle)
Stored in the first tail page's flags, this flag replaces the destructor. That removes the last of the destructors, so remove all references to folio_dtor and compound_dtor. Link: https://lkml.kernel.org/r/20230816151201.3655946-9-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: remove HUGETLB_PAGE_DTORMatthew Wilcox (Oracle)
We can use a bit in page[1].flags to indicate that this folio belongs to hugetlb instead of using a value in page[1].dtors. That lets folio_test_hugetlb() become an inline function like it should be. We can also get rid of NULL_COMPOUND_DTOR. Link: https://lkml.kernel.org/r/20230816151201.3655946-8-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: remove free_compound_page() and the compound_page_dtors arrayMatthew Wilcox (Oracle)
The only remaining destructor is free_compound_page(). Inline it into destroy_large_folio() and remove the array it used to live in. Link: https://lkml.kernel.org/r/20230816151201.3655946-7-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: convert prep_transhuge_page() to folio_prep_large_rmappable()Matthew Wilcox (Oracle)
Match folio_undo_large_rmappable(), and move the casting from page to folio into the callers (which they were largely doing anyway). Link: https://lkml.kernel.org/r/20230816151201.3655946-6-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: convert free_transhuge_folio() to folio_undo_large_rmappable()Matthew Wilcox (Oracle)
Indirect calls are expensive, thanks to Spectre. Test for TRANSHUGE_PAGE_DTOR and destroy the folio appropriately. Move the free_compound_page() call into destroy_large_folio() to simplify later patches. Link: https://lkml.kernel.org/r/20230816151201.3655946-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: convert free_huge_page() to free_huge_folio()Matthew Wilcox (Oracle)
Pass a folio instead of the head page to save a few instructions. Update the documentation, at least in English. Link: https://lkml.kernel.org/r/20230816151201.3655946-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21mm: call free_huge_page() directlyMatthew Wilcox (Oracle)
Indirect calls are expensive, thanks to Spectre. Call free_huge_page() directly if the folio belongs to hugetlb. Link: https://lkml.kernel.org/r/20230816151201.3655946-3-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21pgtable: improve pte_protnone() commentDavid Hildenbrand
Especially the "For PROT_NONE VMAs, the PTEs are not marked _PAGE_PROTNONE" part is wrong: doing an mprotect(PROT_NONE) will end up marking all PTEs on x86_64 as _PAGE_PROTNONE, making pte_protnone() indicate "yes". So let's improve the comment, so it's easier to grasp which semantics pte_protnone() actually has. Link: https://lkml.kernel.org/r/20230803143208.383663-6-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: liubo <liubo254@huawei.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21merge mm-hotfixes-stable into mm-stable to pick up depended-upon changesAndrew Morton
2023-08-21kill do_each_thread()Oleg Nesterov
Eric has pointed out that we still have 3 users of do_each_thread(). Change them to use for_each_process_thread() and kill this helper. There is a subtle change, after do_each_thread/while_each_thread g == t == &init_task, while after for_each_process_thread() they both point to nowhere, but this doesn't matter. > Why is for_each_process_thread() better than do_each_thread()? Say, for_each_process_thread() is rcu safe, do_each_thread() is not. And certainly for_each_process_thread(p, t) { do_something(p, t); } looks better than do_each_thread(p, t) { do_something(p, t); } while_each_thread(p, t); And again, there are only 3 users of this awkward helper left. It should have been killed years ago and in fact I thought it had already been killed. It uses while_each_thread() which needs some changes. Link: https://lkml.kernel.org/r/20230817163708.GA8248@redhat.com Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: "Christian Brauner (Microsoft)" <brauner@kernel.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Jiri Slaby <jirislaby@kernel.org> # tty/serial Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21lib/vsprintf: declare no_hash_pointers in sprintf.hAndy Shevchenko
Sparse is not happy to see non-static variable without declaration: lib/vsprintf.c:61:6: warning: symbol 'no_hash_pointers' was not declared. Should it be static? Declare respective variable in the sprintf.h. With this, add a comment to discourage its use if no real need. Link: https://lkml.kernel.org/r/20230814163344.17429-3-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Marco Elver <elver@google.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21lib/vsprintf: split out sprintf() and friendsAndy Shevchenko
Patch series "lib/vsprintf: Rework header inclusions", v3. Some patches that reduce the mess with the header inclusions related to vsprintf.c module. Each patch has its own description, and has no dependencies to each other, except the collisions over modifications of the same places. Hence the series. This patch (of 2): kernel.h is being used as a dump for all kinds of stuff for a long time. sprintf() and friends are used in many drivers without need of the full kernel.h dependency train with it. Here is the attempt on cleaning it up by splitting out sprintf() and friends. Link: https://lkml.kernel.org/r/20230814163344.17429-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20230814163344.17429-2-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Marco Elver <elver@google.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21pagemap: remove wait_on_page_locked_killable()Kefeng Wang
There is no users of wait_on_page_locked_killable(), remove it. Link: https://lkml.kernel.org/r/20230815030609.39313-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
generated by cgit (git 2.34.1) at 2025-09-11 13:11:21 +0000