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2021-04-14char: tpm: fix error return code in tpm_cr50_i2c_tis_recv()Zhihao Cheng
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 3a253caaad11 ("char: tpm: add i2c driver for cr50") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-04-14tpm: vtpm_proxy: Avoid reading host log when using a virtual deviceStefan Berger
Avoid allocating memory and reading the host log when a virtual device is used since this log is of no use to that driver. A virtual device can be identified through the flag TPM_CHIP_FLAG_VIRTUAL, which is only set for the tpm_vtpm_proxy driver. Cc: stable@vger.kernel.org Fixes: 6f99612e2500 ("tpm: Proxy driver for supporting multiple emulated TPMs") Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-04-14tpm: acpi: Check eventlog signature before using itStefan Berger
Check the eventlog signature before using it. This avoids using an empty log, as may be the case when QEMU created the ACPI tables, rather than probing the EFI log next. This resolves an issue where the EFI log was empty since an empty ACPI log was used. Cc: stable@vger.kernel.org Fixes: 85467f63a05c ("tpm: Add support for event log pointer found in TPM2 ACPI table") Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-04-14tpm: efi: Use local variable for calculating final log sizeStefan Berger
When tpm_read_log_efi is called multiple times, which happens when one loads and unloads a TPM2 driver multiple times, then the global variable efi_tpm_final_log_size will at some point become a negative number due to the subtraction of final_events_preboot_size occurring each time. Use a local variable to avoid this integer underflow. The following issue is now resolved: Mar 8 15:35:12 hibinst kernel: Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 Mar 8 15:35:12 hibinst kernel: Workqueue: tpm-vtpm vtpm_proxy_work [tpm_vtpm_proxy] Mar 8 15:35:12 hibinst kernel: RIP: 0010:__memcpy+0x12/0x20 Mar 8 15:35:12 hibinst kernel: Code: 00 b8 01 00 00 00 85 d2 74 0a c7 05 44 7b ef 00 0f 00 00 00 c3 cc cc cc 66 66 90 66 90 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 f3 a4 Mar 8 15:35:12 hibinst kernel: RSP: 0018:ffff9ac4c0fcfde0 EFLAGS: 00010206 Mar 8 15:35:12 hibinst kernel: RAX: ffff88f878cefed5 RBX: ffff88f878ce9000 RCX: 1ffffffffffffe0f Mar 8 15:35:12 hibinst kernel: RDX: 0000000000000003 RSI: ffff9ac4c003bff9 RDI: ffff88f878cf0e4d Mar 8 15:35:12 hibinst kernel: RBP: ffff9ac4c003b000 R08: 0000000000001000 R09: 000000007e9d6073 Mar 8 15:35:12 hibinst kernel: R10: ffff9ac4c003b000 R11: ffff88f879ad3500 R12: 0000000000000ed5 Mar 8 15:35:12 hibinst kernel: R13: ffff88f878ce9760 R14: 0000000000000002 R15: ffff88f77de7f018 Mar 8 15:35:12 hibinst kernel: FS: 0000000000000000(0000) GS:ffff88f87bd00000(0000) knlGS:0000000000000000 Mar 8 15:35:12 hibinst kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 8 15:35:12 hibinst kernel: CR2: ffff9ac4c003c000 CR3: 00000001785a6004 CR4: 0000000000060ee0 Mar 8 15:35:12 hibinst kernel: Call Trace: Mar 8 15:35:12 hibinst kernel: tpm_read_log_efi+0x152/0x1a7 Mar 8 15:35:12 hibinst kernel: tpm_bios_log_setup+0xc8/0x1c0 Mar 8 15:35:12 hibinst kernel: tpm_chip_register+0x8f/0x260 Mar 8 15:35:12 hibinst kernel: vtpm_proxy_work+0x16/0x60 [tpm_vtpm_proxy] Mar 8 15:35:12 hibinst kernel: process_one_work+0x1b4/0x370 Mar 8 15:35:12 hibinst kernel: worker_thread+0x53/0x3e0 Mar 8 15:35:12 hibinst kernel: ? process_one_work+0x370/0x370 Cc: stable@vger.kernel.org Fixes: 166a2809d65b ("tpm: Don't duplicate events from the final event log in the TCG2 log") Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-04-09ipmi: kcs: aspeed: Adapt to new LPC DTS layoutChia-Wei, Wang
Add check against LPC device v2 compatible string to ensure that the fixed device tree layout is adopted. The LPC register offsets are also fixed accordingly. Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Haiyue Wang <haiyue.wang@linux.intel.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20210319062752.145730-3-andrew@aj.id.au Signed-off-by: Joel Stanley <joel@jms.id.au>
2021-04-07pcmcia: synclink_cs: drop redundant tty-port initialisationJohan Hovold
The port close_delay and closing_wait parameters have already been by tty_port_init() so drop the redundant driver initialisation to the default values. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20210407102334.32361-16-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-06parisc: parisc-agp requires SBA IOMMU driverHelge Deller
Add a dependency to the SBA IOMMU driver to avoid: ERROR: modpost: "sba_list" [drivers/char/agp/parisc-agp.ko] undefined! Reported-by: kernel test robot <lkp@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
2021-04-05Merge 5.12-rc6 into char-misc-nextGreg Kroah-Hartman
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-02ipmi_si: Join string literals backAndy Shevchenko
For easy grepping on debug purposes join string literals back in the messages. No functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-11-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Drop redundant check before calling put_device()Andy Shevchenko
put_device() is NULL aware, drop redundant check before calling it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-10-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Use strstrip() to remove surrounding spacesAndy Shevchenko
Instead of home grown analogue, use strstrip() from the kernel library. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-9-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Get rid of ->addr_source_cleanup()Andy Shevchenko
The ->addr_source_cleanup() callback is solely used by PCI driver and only for one purpose, i.e. to disable device. Get rid of ->addr_source_cleanup() by switching to PCI managed API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-8-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Reuse si_to_str[] array in ipmi_hardcode_init_one()Andy Shevchenko
Instead of making the comparison one by one, reuse si_to_str[] array in ipmi_hardcode_init_one() in conjunction with match_string() API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-7-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Introduce ipmi_panic_event_str[] arrayAndy Shevchenko
Instead of repeating twice the constant literals, introduce ipmi_panic_event_str[] array. It allows to simplify the code with help of match_string() API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-6-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Use proper ACPI macros to check error code for failuresAndy Shevchenko
Instead of direct comparison, use proper ACPI macros to check error code for failures. While at it, drop unneeded 'else' keyword. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-5-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Utilize temporary variable to hold device pointerAndy Shevchenko
Introduce a temporary variable to hold a device pointer. It can be utilized in the ->probe() and save a bit of LOCs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-4-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Remove bogus err_free labelAndy Shevchenko
There is no more 'free' in the error path, so drop the label and return errors inline. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-3-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02ipmi_si: Switch to use platform_get_mem_or_io()Andy Shevchenko
Switch to use new platform_get_mem_or_io() instead of home grown analogue. Note, we also introduce ipmi_set_addr_data_and_space() helper here. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Message-Id: <20210402174334.13466-2-andriy.shevchenko@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-02hwrng: omap - Use of_device_get_match_data() helperTian Tao
Use the of_device_get_match_data() helper instead of open coding. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-02random: remove dead code left over from blocking poolEric Biggers
Remove some dead code that was left over following commit 90ea1c6436d2 ("random: remove the blocking pool"). Cc: linux-crypto@vger.kernel.org Cc: Andy Lutomirski <luto@kernel.org> Cc: Jann Horn <jannh@google.com> Cc: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Andy Lutomirski <luto@kernel.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-02random: initialize ChaCha20 constants with correct endiannessEric Biggers
On big endian CPUs, the ChaCha20-based CRNG is using the wrong endianness for the ChaCha20 constants. This doesn't matter cryptographically, but technically it means it's not ChaCha20 anymore. Fix it to always use the standard constants. Cc: linux-crypto@vger.kernel.org Cc: Andy Lutomirski <luto@kernel.org> Cc: Jann Horn <jannh@google.com> Cc: Theodore Ts'o <tytso@mit.edu> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-28applicom: fix some err codes returned by ac_ioctlXu Jia
When cmd > 6 or copy_to_user() fail, The variable 'ret' would not be returned back. Fix the 'ret' set but not used. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Xu Jia <xujia39@huawei.com> Link: https://lore.kernel.org/r/20210324072031.941791-1-xujia39@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-26hwrng: core - convert sysfs sprintf/snprintf family to sysfs_emitZihao Tang
Fix the following coccicheck warning: drivers/char/hw_random/core.c:399:8-16: WARNING: use scnprintf or sprintf. Signed-off-by: Zihao Tang <tangzihao1@hisilicon.com> Signed-off-by: Jay Fang <f.fangjian@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-26hwrng: intel - Fix included header from 'asmTian Tao
This commit fixes the checkpatch warning: WARNING: Use #include <linux/io.h> instead of <asm/io.h> 34: FILE: drivers/char/hw_random/intel-rng.c:34: Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-24char: lp: remove redundant space around (inside) parenthesized expressionsQiang Ma
These two lines of code don't meet the linux kernel style, and use a space after these keywords: if, switch, case, for, do, while. Do not add spaces around (inside) parenthesized expressions. So remove the redundant space. Signed-off-by: Qiang Ma <maqianga@uniontech.com> Link: https://lore.kernel.org/r/20210309072059.22107-1-maqianga@uniontech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-24char/mwave: turn tp3780I_Cleanup() into void functionYang Li
This function always return '0' and no callers use the return value. So make it a void function. This eliminates the following coccicheck warning: ./drivers/char/mwave/tp3780i.c:182:5-11: Unneeded variable: "retval". Return "0" on line 187 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1615366834-20545-1-git-send-email-yang.lee@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-19hwrng: cctrng - delete redundant printing of return valueWang Qing
platform_get_irq() has already checked and printed the return value, the printing here is nothing special, it is not necessary at all. Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-19hwrng: ba431 - use devm_platform_ioremap_resource() to simplifyTian Tao
Use devm_platform_ioremap_resource() to simplify the code. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-19hwrng: cctrng - use devm_platform_ioremap_resource() to simplifyTian Tao
Use devm_platform_ioremap_resource() to simplify the code. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-17module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-03-15Merge v5.12-rc3 into char-misc-nextGreg Kroah-Hartman
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-13hwrng: bcm2835 - add reset supportÁlvaro Fernández Rojas
BCM6368 devices need to reset the IPSEC controller in order to generate true random numbers. This is what BCM6368 produces without a reset: root@OpenWrt:/# cat /dev/hwrng | rngtest -c 1000 rngtest 6.10 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 0 rngtest: FIPS 140-2 failures: 1000 rngtest: FIPS 140-2(2001-10-10) Monobit: 2 rngtest: FIPS 140-2(2001-10-10) Poker: 1000 rngtest: FIPS 140-2(2001-10-10) Runs: 1000 rngtest: FIPS 140-2(2001-10-10) Long run: 30 rngtest: FIPS 140-2(2001-10-10) Continuous run: 0 rngtest: input channel speed: (min=37.253; avg=320.827; max=635.783)Mibits/s rngtest: FIPS tests speed: (min=12.141; avg=15.034; max=16.428)Mibits/s rngtest: Program run time: 1336176 microseconds Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-13hwrng: pic32 - Use device-managed registration APITian Tao
Use devm_hwrng_register to get rid of manual unregistration. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-13hwrng: cctrng - Use device-managed registration APITian Tao
Use devm_hwrng_register to get rid of manual unregistration. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-10ipmi: Handle device properties with software node APIHeikki Krogerus
The old device property API is going to be removed. Replacing the device_add_properties() call with the software node API equivalent, device_create_managed_software_node(). Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Message-Id: <20210304090312.26827-1-heikki.krogerus@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-03-10ipmi:ssif: make ssif_i2c_send() voidLiguang Zhang
This function actually needs no return value. So remove the unneeded check and make it void. Signed-off-by: Liguang Zhang <zhangliguang@linux.alibaba.com> Message-Id: <20210301140515.18951-1-zhangliguang@linux.alibaba.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-03-10ipmi: Refine retry conditions for getting device idTerry Duncan
Rarely but still failures are observed while getting BMC device ID so this commit changes the condition to retry to get device id when cc is not IPMI_CC_NO_ERROR. Signed-off-by: Terry Duncan <terry.s.duncan@intel.com> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Message-Id: <20210225045027.9344-1-jae.hyun.yoo@linux.intel.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-03-10virtio_console: remove pointless check for debugfs_create_dir()Greg Kroah-Hartman
It is impossible for debugfs_create_dir() to return NULL, so checking for it gives people a false sense that they actually are doing something if an error occurs. As there is no need to ever change kernel logic if debugfs is working "properly" or not, there is no need to check the return value of debugfs calls, so remove the checks here as they will never be triggered and are wrong. Cc: Amit Shah <amit@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: virtualization@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Amit Shah <amit@kernel.org> Link: https://lore.kernel.org/r/20210216150410.3844635-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-07Merge tag 'powerpc-5.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "One non-fix, the conversion of vio_driver->remove() to return void, which touches various powerpc specific drivers. Fix the privilege checks we do in our perf handling, which could cause soft/hard lockups in some configurations. Fix a bug with IRQ affinity seen on kdump kernels when CPU 0 is offline in the second kernel. Fix missed page faults after mprotect(..., PROT_NONE) on 603 (32-bit). Fix a bug in our VSX (vector) instruction emulation, which should only be seen when doing VSX ops to cache inhibited mappings. Three commits fixing various build issues with obscure configurations. Thanks to Athira Rajeev, Cédric Le Goater, Christophe Leroy, Christoph Plattner, Greg Kurz, Jordan Niethe, Laurent Vivier, Ravi Bangoria, Tyrel Datwyler, and Uwe Kleine-König" * tag 'powerpc-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/sstep: Fix VSX instruction emulation powerpc/perf: Fix handling of privilege level checks in perf interrupt context powerpc: Force inlining of mmu_has_feature to fix build failure vio: make remove callback return void powerpc/syscall: Force inlining of __prep_irq_for_enabled_exit() powerpc/603: Fix protection of user pages mapped with PROT_NONE powerpc/pseries: Don't enforce MSI affinity with kdump powerpc/4xx: Fix build errors from mfdcr()
2021-03-07hwrng: omap - Fix included header from 'asm'Tian Tao
This commit fixes the checkpatch warning: WARNING: Use #include <linux/io.h> instead of <asm/io.h> drivers/char/hw_random/omap-rng.c:34 Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-07hwrng: bcm2835 - remove redundant null checkTian Tao
clk_prepare_enable() and clk_disable_unprepare() will check NULL clock parameter, so It is not necessary to add additional checks. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-07hwrng: xiphera-trng - use devm_platform_ioremap_resource() to simplifyTian Tao
Use devm_platform_ioremap_resource() to simplify the code. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-07hwrng: ba431 - Use device-managed registrationTian Tao
Use device-managed registration, so we can delete the ba431_trng_remove. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-03-04Merge tag 'tpmdd-next-v5.12-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd Pull tpm fixes Jarkko Sakkinen: "Three fixes for rc2" * tag 'tpmdd-next-v5.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: tpm: Remove unintentional dump_stack() call tpm, tpm_tis: Decorate tpm_tis_gen_interrupt() with request_locality() tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality()
2021-03-03tpm: Remove unintentional dump_stack() callJarkko Sakkinen
Somewhere along the line, probably during a rebase, an unintentional dump_stack() got included. Revert this change. Reported-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Fixes: 90cba8d20f8b ("tpm/ppi: Constify static struct attribute_group") Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-03-02vio: make remove callback return voidUwe Kleine-König
The driver core ignores the return value of struct bus_type::remove() because there is only little that can be done. To simplify the quest to make this function return void, let struct vio_driver::remove() return void, too. All users already unconditionally return 0, this commit makes it obvious that returning an error code is a bad idea. Note there are two nominally different implementations for a vio bus: one in arch/sparc/kernel/vio.c and the other in arch/powerpc/platforms/pseries/vio.c. This patch only adapts the powerpc one. Before this patch for a device that was bound to a driver without a remove callback vio_cmo_bus_remove(viodev) wasn't called. As the device core still considers the device unbound after vio_bus_remove() returns calling this unconditionally is the consistent behaviour which is implemented here. Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com> Acked-by: Lijun Pan <ljp@linux.ibm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [mpe: Drop unneeded hvcs_remove() forward declaration, squash in change from sfr to drop ibmvnic_remove() forward declaration] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210225221834.160083-1-uwe@kleine-koenig.org
2021-02-24Merge tag 'char-misc-5.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc/whatever driver subsystem updates for 5.12-rc1. Over time it seems like this tree is collecting more and more tiny driver subsystems in one place, making it easier for those maintainers, which is why this is getting larger. Included in here are: - coresight driver updates - habannalabs driver updates - virtual acrn driver addition (proper acks from the x86 maintainers) - broadcom misc driver addition - speakup driver updates - soundwire driver updates - fpga driver updates - amba driver updates - mei driver updates - vfio driver updates - greybus driver updates - nvmeem driver updates - phy driver updates - mhi driver updates - interconnect driver udpates - fsl-mc bus driver updates - random driver fix - some small misc driver updates (rtsx, pvpanic, etc.) All of these have been in linux-next for a while, with the only reported issue being a merge conflict due to the dfl_device_id addition from the fpga subsystem in here" * tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits) spmi: spmi-pmic-arb: Fix hw_irq overflow Documentation: coresight: Add PID tracing description coresight: etm-perf: Support PID tracing for kernel at EL2 coresight: etm-perf: Clarify comment on perf options ACRN: update MAINTAINERS: mailing list is subscribers-only regmap: sdw-mbq: use MODULE_LICENSE("GPL") regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ regmap: sdw: use _no_pm functions in regmap_read/write soundwire: intel: fix possible crash when no device is detected MAINTAINERS: replace my with email with replacements mhi: Fix double dma free uapi: map_to_7segment: Update example in documentation uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue firewire: replace tricky statement by two simple ones vme: make remove callback return void firmware: google: make coreboot driver's remove callback return void firmware: xilinx: Use explicit values for all enum values sample/acrn: Introduce a sample of HSM ioctl interface usage virt: acrn: Introduce an interface for Service VM to control vCPU ...
2021-02-24tpm, tpm_tis: Decorate tpm_tis_gen_interrupt() with request_locality()Lukasz Majczak
This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2 (SLB 9670): [ 4.324298] TPM returned invalid status [ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f Background ========== TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO Interface Locality Usage per Register, Table 39 Register Behavior Based on Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns 0xFF in case of lack of locality. The fix ======= Decorate tpm_tis_gen_interrupt() with request_locality() and release_locality(). Cc: Laurent Bigonville <bigon@debian.org> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org Fixes: a3fbfae82b4c ("tpm: take TPM chip power gating out of tpm_transmit()") Signed-off-by: Lukasz Majczak <lma@semihalf.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-02-24tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality()Jarkko Sakkinen
This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2 (SLB 9670): [ 4.324298] TPM returned invalid status [ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f Background ========== TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO Interface Locality Usage per Register, Table 39 Register Behavior Based on Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns 0xFF in case of lack of locality. The fix ======= Decorate tpm_get_timeouts() with request_locality() and release_locality(). Fixes: a3fbfae82b4c ("tpm: take TPM chip power gating out of tpm_transmit()") Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Laurent Bigonville <bigon@debian.org> Cc: stable@vger.kernel.org Reported-by: Lukasz Majczak <lma@semihalf.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2021-02-22Merge tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmiLinus Torvalds
Pull IPMI update from Corey Minyard: "Only one change, but it's required for other things, so it needs to go in" * tag 'for-linus-5.12-1' of git://github.com/cminyard/linux-ipmi: ipmi: remove open coded version of SMBus block write
generated by cgit (git 2.34.1) at 2025-09-12 18:27:47 +0000