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2019-09-14powerpc/fadump: process the crashdump by exporting it as /proc/vmcoreHari Bathini
Add support in the kernel to process the crash'ed kernel's memory preserved during MPIPL and export it as /proc/vmcore file for the userland scripts to filter and analyze it later. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821351482.5656.6255805804744333073.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: support copying multiple kernel boot memory regionsHari Bathini
Firmware uses a 32-bit field for size while copying/backing-up memory during MPIPL. So, the maximum value that could be represented with a PAGE_SIZE aligned 32-bit field will be the maximum copy size for a region but FADump capture kernel usually needs more memory than that to be preserved to avoid running into out of memory errors. So, request firmware to copy multiple kernel boot memory regions instead of just one (which worked fine for pseries as 64-bit field was used for size there). Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821350193.5656.3664853158523582019.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: define OPAL register/un-register callback functionsHari Bathini
Make OPAL calls to register and un-register with firmware for MPIPL. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821348482.5656.13646250851483648241.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: reset metadata address during clean upHari Bathini
During kexec boot, metadata address needs to be reset to avoid running into errors interpreting stale metadata address, in case the kexec'ed kernel crashes before metadata address could be setup again. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821346629.5656.10783321582005237813.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: register kernel metadata address with opalHari Bathini
OPAL allows registering address with it in the first kernel and retrieving it after MPIPL. Setup kernel metadata and register its address with OPAL to use it for processing the crash dump. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821345011.5656.13567765019032928471.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: improve fadump_reserve_mem()Hari Bathini
Some code clean-up like using minimal assignments and updating printk messages. Also, add an 'error_out' label for handling error cleanup at one place. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821343485.5656.10202857091553646948.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: add fadump support on powernvHari Bathini
Add basic callback functions for FADump on PowerNV platform. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821342072.5656.4346362203141486452.stgit@hbathini.in.ibm.com
2019-09-14powerpc/opal: add MPIPL interface definitionsHari Bathini
MPIPL is Memory Preserving IPL supported from POWER9. This enables the kernel to reset the system with memory 'preserved'. Also, it supports copying memory from a source address to some destination address during MPIPL boot. Add MPIPL interface definitions here to leverage these f/w features in adding FADump support for PowerNV platform. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821340710.5656.10071829040515662624.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: use FADump instead of fadump for how it is pronouncedHari Bathini
fadump is pronounced f-a-dump. Update documentation accordingly. Also, update how fadump_region contents look like with recent changes. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821339317.5656.15852294223821732082.stgit@hbathini.in.ibm.com
2019-09-14pseries/fadump: move out platform specific support from generic codeHari Bathini
Move code that supports processing the crash'ed kernel's memory preserved by firmware to platform specific callback functions. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821337690.5656.13050665924800177744.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: release all the memory above boot memory sizeHari Bathini
Except for Reserved dump area (see Documentation/powerpc/firmware- assisted-dump.rst) which is permanent reserved, all memory above boot memory size, where boot memory size is the memory required for the kernel to boot successfully when booted with restricted memory (memory for capture kernel), is released when the dump is invalidated. Make this a bit more explicit in the code. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821336092.5656.1079046285366041687.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: add source info while displaying region contentsHari Bathini
Improve how fadump_region contents are displayed by adding source information of memory regions that are to be dumped by f/w. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821334740.5656.5897097884010195405.stgit@hbathini.in.ibm.com
2019-09-14pseries/fadump: define RTAS register/un-register callback functionsHari Bathini
Move platform specific register/un-register code, the RTAS calls, to register/un-register callback functions. This would also mean moving code that initializes and prints the platform specific FADump data. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821332856.5656.16380417702046411631.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: introduce callbacks for platform specific operationsHari Bathini
Introduce callback functions for platform specific operations like register, unregister, invalidate & such. Also, define place-holders for the same on pSeries platform. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821330286.5656.15538934400074110770.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: move rtas specific definitions to platform codeHari Bathini
Currently, FADump is only supported on pSeries but that is going to change soon with FADump support being added on PowerNV platform. So, move rtas specific definitions to platform code to allow FADump to have multiple platforms support. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821328494.5656.16219929140866195511.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: use helper functions to reserve/release cpu notes bufferHari Bathini
Use helper functions to simplify memory allocation, pinning down and freeing the memory used for CPU notes buffer. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821323555.5656.2486038022572739622.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: Improve fadump documentationHari Bathini
The figures depicting FADump's (Firmware-Assisted Dump) memory layout are missing some finer details like different memory regions and what they represent. Improve the documentation by updating those details. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821322070.5656.8194734198500730487.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: declare helper functions in internal header fileHari Bathini
Declare helper functions, that can be reused by multiple platforms, in the internal header file. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821320487.5656.2660730464212209984.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: add helper functionsHari Bathini
Add helper functions to setup & free CPU notes buffer and to find if a given memory area is contiguous. Also, use boolean as return type for the function that finds if boot memory area is contiguous. While at it, save the virtual address of CPU notes buffer instead of physical address as virtual address is used often. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821318971.5656.9281936950510635858.stgit@hbathini.in.ibm.com
2019-09-14powerpc/fadump: move internal macros/definitions to a new headerHari Bathini
Though asm/fadump.h is meant to be used by other components dealing with FADump, it also has macros/definitions internal to FADump code. Move them to a new header file used within FADump code. This also makes way for refactoring platform specific FADump code. Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/156821313134.5656.6597770626574392140.stgit@hbathini.in.ibm.com
2019-09-14powerpc: improve prom_init_check ruleMasahiro Yamada
This slightly improves the prom_init_check rule. [1] Avoid needless check Currently, prom_init_check.sh is invoked every time you run 'make' even if you have changed nothing in prom_init.c. With this commit, the script is re-run only when prom_init.o is recompiled. [2] Beautify the build log Currently, the O= build shows the absolute path to the script: CALL /abs/path/to/source/of/linux/arch/powerpc/kernel/prom_init_check.sh With this commit, it is always a relative path to the timestamp file: PROMCHK arch/powerpc/kernel/prom_init_check Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190912074037.13813-1-yamada.masahiro@socionext.com
2019-09-14powerpc/kvm: Add ifdefs around template codeMichael Ellerman
Some of the templates used for KVM patching are only used on certain platforms, but currently they are always built-in, fix that. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190911115746.12433-4-mpe@ellerman.id.au
2019-09-14powerpc/kvm: Explicitly mark kvm guest code as __initMichael Ellerman
All the code in kvm.c can be marked __init. Most of it is already inlined into the initcall, but not all. So instead of relying on the inlining, mark it all as __init. This saves ~280 bytes of text for my configuration. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190911115746.12433-3-mpe@ellerman.id.au
2019-09-14powerpc/64s: Remove overlaps_kvm_tmp()Michael Ellerman
kvm_tmp is now in .text and so doesn't need a special overlap check. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190911115746.12433-2-mpe@ellerman.id.au
2019-09-14powerpc/kvm: Move kvm_tmp into .text, shrink to 64KMichael Ellerman
In some configurations of KVM, guests binary patch themselves to avoid/reduce trapping into the hypervisor. For some instructions this requires replacing one instruction with a sequence of instructions. For those cases we need to write the sequence of instructions somewhere and then patch the location of the original instruction to branch to the sequence. That requires that the location of the sequence be within 32MB of the original instruction. The current solution for this is that we create a 1MB array in BSS, write sequences into there, and then free the remainder of the array. This has a few problems: - it confuses kmemleak. - it confuses lockdep. - it requires mapping kvm_tmp executable, which can cause adjacent areas to also be mapped executable if we're using 16M pages for the linear mapping. - the 32MB limit can be exceeded if the kernel is big enough, especially with STRICT_KERNEL_RWX enabled, which then prevents the patching from working at all. We can fix all those problems by making kvm_tmp just a region of regular .text. However currently it's 1MB in size, and we don't want to waste 1MB of text. In practice however I only see ~30KB of kvm_tmp being used even for an allyes_config. So shrink kvm_tmp to 64K, which ought to be enough for everyone, and move it into .text. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190911115746.12433-1-mpe@ellerman.id.au
2019-09-14powerpc/powernv: Fix build with IOMMU_API=nMichael Ellerman
The builds breaks when IOMMU_API=n, eg. skiroot_defconfig: arch/powerpc/platforms/powernv/npu-dma.c:96:28: error: 'get_gpu_pci_dev_and_pe' defined but not used arch/powerpc/platforms/powernv/npu-dma.c:126:13: error: 'pnv_npu_set_window' defined but not used Fixes: b4d37a7b6934 ("powerpc/powernv: Remove unused pnv_npu_try_dma_set_bypass() function") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-09-14powerpc/eeh: Fix build with STACKTRACE=nMichael Ellerman
The build breaks when STACKTRACE=n, eg. skiroot_defconfig: arch/powerpc/kernel/eeh_event.c:124:23: error: implicit declaration of function 'stack_trace_save' Fix it with some ifdefs for now. Fixes: 25baf3d81614 ("powerpc/eeh: Defer printing stack trace") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-09-13PTP: add support for one-shot outputFelipe Balbi
Some controllers allow for a one-shot output pulse, in contrast to periodic output. Now that we have extensible versions of our IOCTLs, we can finally make use of the 'flags' field to pass a bit telling driver that if we want one-shot pulse output. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Reviewed-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13PTP: introduce new versions of IOCTLsFelipe Balbi
The current version of the IOCTL have a small problem which prevents us from extending the API by making use of reserved fields. In these new IOCTLs, we are now making sure that flags and rsv fields are zero which will allow us to extend the API in the future. Reviewed-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13ixgbevf: Fix secpath usage for IPsec Tx offloadJeff Kirsher
Port the same fix for ixgbe to ixgbevf. The ixgbevf driver currently does IPsec Tx offloading based on an existing secpath. However, the secpath can also come from the Rx side, in this case it is misinterpreted for Tx offload and the packets are dropped with a "bad sa_idx" error. Fix this by using the xfrm_offload() function to test for Tx offload. CC: Shannon Nelson <snelson@pensando.io> Fixes: 7f68d4306701 ("ixgbevf: enable VF IPsec offload operations") Reported-by: Jonathan Tooker <jonathan@reliablehosting.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13Merge branch '100GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 100GbE Intel Wired LAN Driver Updates 2019-09-12 This series contains updates to ice driver to implement and support loading a Dynamic Device Personalization (DDP) package from lib/firmware onto the device. Paul updates the way the driver version is stored in the driver so that we can pass the driver version to the firmware. Passing of the driver version to the firmware is needed for the DDP package to ensure we have the appropriate support in the driver for the features in the package. Lukasz fixes how the firmware version is stored to align with how the firmware stores its own version. Also extended the log message to display additional useful information such as NVM version, API patch information and firmware build hash. Tony adds the needed driver support to check, load and store the DDP package. Also add support for the ability to load DDP packages intended for specific hardware devices, as well as what to do when loading of the DDP package fails to load. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13Merge branch '40GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2019-09-11 This series contains updates to i40e, ixgbe/vf and iavf. Wenwen Wang fixes a potential memory leak where 3 allocated variables are not properly cleaned up on failure for ixgbe. Stefan Assmann fixes a potential kernel panic found when repeatedly spawning and destroying VFs in i40e when a NULL pointer is dereferenced due to a race condition. Fixed up the i40e driver to clear the __I40E_VIRTCHNL_OP_PENDING bit before returning after an invalid minimum transmit rate is requested. Updates the iavf driver to only apply the MAC address change when the PF ACK's the requested change. Tonghao Zhang updates ixgbe to use the skb_get_queue_mapping() API call instead of the driver accessing the queue mapping directly. Jake updates i40e to use ktime_get_real_ts64() instead of ktime_to_timespec64(). Removes the define for bit 0x0001 for cloud filters, since it is a reserved bit and not a valid type. Also added code comments to clearly state which bits are reserved and should not be used or defined for cloud filter adminq command. Clarify the macros used to specify the cloud filter fields are individual bits, so use the BIT() macro. Aleksandr fixes up the print_link_message() to include the "negotiated" FEC status for i40e. Czeslaw also adds additional log message for devices without FEC in the print_link_message() for i40e. Colin Ian King reduces the object code size by making the array API static constant. Magnus fixes a potential receive buffer starvation issue for AF_XDP by kicking the NAPI context of any queue with an attached AF_XDP zero-copy socket. v2: Removed patch 11 from the original series (Alex Duyck's ITR fix), so that it can be sent to the net tree. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13brcmsmac: Use DIV_ROUND_CLOSEST directly to make it readablezhong jiang
The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d but is perhaps more readable. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks ↵Colin Ian King
object size Arrays pwr_info_offset and sprom_sizes can be make static const rather than populating them on the stack. Shrinks object size by 236 bytes. Before: text data bss dec hex filename 11300 1320 64 12684 318c drivers/bcma/sprom.o After: text data bss dec hex filename 10904 1480 64 12448 30a0 drivers/bcma/sprom.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13rtlwifi: rtl8821ae: make array static const and remove redundant assignmentColin Ian King
The array channel_all can be make static const rather than populating it on the stack, this makes the code smaller. Also, variable place is being initialized with a value that is never read, so this assignment is redundant and can be removed. Before: text data bss dec hex filename 118537 9591 0 128128 1f480 realtek/rtlwifi/rtl8821ae/phy.o After: text data bss dec hex filename 118331 9687 0 128018 1f412 realtek/rtlwifi/rtl8821ae/phy.o Saves 110 bytes, (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13brcmfmac: don't realloc wiphy during PCIe resetRafał Miłecki
Providing a new wiphy on every PCIe reset was confusing and was causing configuration problems for some users (supplicant and authenticators). Sticking to the existing wiphy should make error recovery much simpler and more reliable. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13brcmfmac: split brcmf_attach() and brcmf_detach() functionsRafał Miłecki
Move code allocating/freeing wiphy out of above functions. This will allow reinitializing the driver (e.g. on some error) without allocating a new wiphy. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13brcmfmac: move "cfg80211_ops" pointer to another structRafał Miłecki
This moves "ops" pointer from "struct brcmf_cfg80211_info" to the "struct brcmf_pub". This movement makes it possible to allocate wiphy without attaching cfg80211 (brcmf_cfg80211_attach()). It's required for later separation of wiphy allocation and driver initialization. While at it fix also an unlikely memory leak in the brcmf_attach(). Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Fix error path of nf_tables_updobj(), from Dan Carpenter. 2) Move large structure away from stack in the nf_tables offload infrastructure, from Arnd Bergmann. 3) Move indirect flow_block logic to nf_tables_offload. 4) Support for synproxy objects, from Fernando Fernandez Mancera. 5) Support for fwd and dup offload. 6) Add __nft_offload_get_chain() helper, this implicitly fixes missing mutex and check for offload flags in the indirect block support, patch from wenxu. 7) Remove rules on device unregistration, from wenxu. This includes two preparation patches to reuse nft_flow_offload_chain() and nft_flow_offload_rule(). Large batch from Jeremy Sowden to make a second pass to the CONFIG_HEADER_TEST support and a bit of housekeeping: 8) Missing include guard in conntrack label header, from Jeremy Sowden. 9) A few coding style errors: trailing whitespace, incorrect indent in Kconfig, and semicolons at the end of function definitions. 10) Remove unused ipt_init() and ip6t_init() declarations. 11) Inline xt_hashlimit, ebt_802_3 and xt_physdev headers. They are only used once. 12) Update include directive in several netfilter files. 13) Remove unused include/net/netfilter/ipv6/nf_conntrack_icmpv6.h. 14) Move nf_ip6_ext_hdr() to include/linux/netfilter_ipv6.h 15) Move several synproxy structure definitions to nf_synproxy.h 16) Move nf_bridge_frag_data structure to include/linux/netfilter_bridge.h 17) Clean up static inline definitions in nf_conntrack_ecache.h. 18) Replace defined(CONFIG...) || defined(CONFIG...MODULE) with IS_ENABLED(CONFIG...). 19) Missing inline function conditional definitions based on Kconfig preferences in synproxy and nf_conntrack_timeout. 20) Update br_nf_pre_routing_ipv6() definition. 21) Move conntrack code in linux/skbuff.h to nf_conntrack headers. 22) Several patches to remove superfluous CONFIG_NETFILTER and CONFIG_NF_CONNTRACK checks in headers, coming from the initial batch support for CONFIG_HEADER_TEST for netfilter. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13hwmon: submitting-patches: Add note on comment styleGuenter Roeck
Ask for standard multi-line comments, and ask for consistent comment style. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-13pinctrl: meson-gxbb: Fix wrong pinning definition for uart_cOtto Meier
Hi i tried to use the uart_C of the the odroid-c2. I enabled it in the dts file. During boot it crashed when the the sdcard slot is addressed. After long search in the net i found this: https://forum.odroid.com/viewtopic.php?f=139&t=25371&p=194370&hilit=uart_C#p177856 After changing the pin definitions accordingly erverything works. Uart_c is functioning and sdcard ist working. Fixes: 6db0f3a8a04e46 ("pinctrl: amlogic: gxbb: add more UART pins") Signed-off-by: Otto Meier <gf435@gmx.net> Link: https://lore.kernel.org/r/1cc32a18-464d-5531-7a1c-084390e2ecb1@gmx.net Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-13hwmon: submitting-patches: Point to with_info APIGuenter Roeck
New driver should use devm_hwmon_device_register_with_info() or hwmon_device_register_with_info() to register with the hwmon subsystem. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-09-13Merge branch 'fixes' into nextUlf Hansson
2019-09-13mmc: tmio: Fixup runtime PM management during removeUlf Hansson
Accessing the device when it may be runtime suspended is a bug, which is the case in tmio_mmc_host_remove(). Let's fix the behaviour. Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
2019-09-13mmc: tmio: Fixup runtime PM management during probeUlf Hansson
The tmio_mmc_host_probe() calls pm_runtime_set_active() to update the runtime PM status of the device, as to make it reflect the current status of the HW. This works fine for most cases, but unfortunate not for all. Especially, there is a generic problem when the device has a genpd attached and that genpd have the ->start|stop() callbacks assigned. More precisely, if the driver calls pm_runtime_set_active() during ->probe(), genpd does not get to invoke the ->start() callback for it, which means the HW isn't really fully powered on. Furthermore, in the next phase, when the device becomes runtime suspended, genpd will invoke the ->stop() callback for it, potentially leading to usage count imbalance problems, depending on what's implemented behind the callbacks of course. To fix this problem, convert to call pm_runtime_get_sync() from tmio_mmc_host_probe() rather than pm_runtime_set_active(). Additionally, to avoid bumping usage counters and unnecessary re-initializing the HW the first time the tmio driver's ->runtime_resume() callback is called, introduce a state flag to keeping track of this. Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
2019-09-13Revert "mmc: tmio: move runtime PM enablement to the driver implementations"Ulf Hansson
This reverts commit 7ff213193310ef8d0ee5f04f79d791210787ac2c. It turns out that the above commit introduces other problems. For example, calling pm_runtime_set_active() must not be done prior calling pm_runtime_enable() as that makes it fail. This leads to additional problems, such as clock enables being wrongly balanced. Rather than fixing the problem on top, let's start over by doing a revert. Fixes: 7ff213193310 ("mmc: tmio: move runtime PM enablement to the driver implementations") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
2019-09-13crypto: caam - Cast to long first before pointer conversionHerbert Xu
While storing an int in a pointer is safe the compiler is not happy about it. So we need some extra casting in order to make this warning free. Fixes: 1d3f75bce123 ("crypto: caam - dispose of IRQ mapping only...") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13crypto: ccree - enable CTS support in AES-XTSUri Shir
In XTS encryption/decryption the plaintext byte size can be >= AES_BLOCK_SIZE. This patch enable the AES-XTS ciphertext stealing implementation in ccree driver. Signed-off-by: Uri Shir <uri.shir@arm.com> Acked-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13crypto: inside-secure - Probe transform record cache RAM sizesPascal van Leeuwen
This patch actually probes the transform record cache data and administration RAM sizes, instead of making assumptions, and then configures the TRC based on the actually probed values. This allows the driver to work with EIP197 HW that has TRC RAM sizes different from those of the Marvell EIP197B/D variants. Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13crypto: inside-secure - Base RD fetchcount on actual RD FIFO sizePascal van Leeuwen
This patch derives the result descriptor fetch count from the actual FIFO size advertised by the hardware. Fetching result descriptors one at a time is a performance bottleneck for small blocks, especially on hardware with multiple pipes. Even moreso if the HW has few rings. Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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