| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"This cycle, there were mostly non urgent fixes in drivers. I also
finally unexported the non managed registration.
Subsystem:
- non devm managed registration is now removed from the driver API
- all the unnecessary rtc_valid_tm() calls have been removed
Drivers:
- abx80X: watchdog support
- cmos: fix non ACPI support
- sc27xx: fix alarm support
- Remove a possible sysfs race condition for ab8500, ds1307, ds1685,
isl1208
- Fix a possible race condition where an irq handler may be called
before the rtc_device struct is allocated for mt6397, pl030,
menelaus, armada38x"
* tag 'rtc-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (54 commits)
rtc: sc27xx: Always read normal alarm when registering RTC device
rtc: sc27xx: Add check to see if need to enable the alarm interrupt
rtc: sc27xx: Remove interrupts disable and clear in probe()
rtc: sc27xx: Clear SPG value update interrupt status
rtc: sc27xx: Set wakeup capability before registering rtc device
rtc: s35390a: Change buf's type to u8 in s35390a_init
rtc: ds1307: fix ds1339 wakealarm support
rtc: ds1685: simplify getting .driver_data
rtc: m41t80: mark expected switch fall-through
rtc: tegra: Propagate errors from platform_get_irq()
rtc: cmos: Remove the `use_acpi_alarm' module parameter for !ACPI
rtc: cmos: Fix non-ACPI undefined reference to `hpet_rtc_interrupt'
rtc: mv: let the core handle invalid alarms
rtc: vr41xx: switch to rtc_time64_to_tm/rtc_tm_to_time64
rtc: ab8500: remove useless check
rtc: ab8500: let the core handle range
rtc: ab8500: use rtc_add_group
rtc: rs5c348: report error when time is invalid
rtc: rs5c348: remove forward declaration
rtc: rs5c348: remove useless label
...
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The old rtc driver is getting in the way of some compat_ioctl
simplification. Looking up the loongson64 git history, it seems
that everyone uses the more modern but compatible RTC_CMOS driver
anyway, so let's remove the special case for loongson64.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Remove VLA usage
- Add cryptostat user-space interface
- Add notifier for new crypto algorithms
Algorithms:
- Add OFB mode
- Remove speck
Drivers:
- Remove x86/sha*-mb as they are buggy
- Remove pcbc(aes) from x86/aesni
- Improve performance of arm/ghash-ce by up to 85%
- Implement CTS-CBC in arm64/aes-blk, faster by up to 50%
- Remove PMULL based arm64/crc32 driver
- Use PMULL in arm64/crct10dif
- Add aes-ctr support in s5p-sss
- Add caam/qi2 driver
Others:
- Pick better transform if one becomes available in crc-t10dif"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (124 commits)
crypto: chelsio - Update ntx queue received from cxgb4
crypto: ccree - avoid implicit enum conversion
crypto: caam - add SPDX license identifier to all files
crypto: caam/qi - simplify CGR allocation, freeing
crypto: mxs-dcp - make symbols 'sha1_null_hash' and 'sha256_null_hash' static
crypto: arm64/aes-blk - ensure XTS mask is always loaded
crypto: testmgr - fix sizeof() on COMP_BUF_SIZE
crypto: chtls - remove set but not used variable 'csk'
crypto: axis - fix platform_no_drv_owner.cocci warnings
crypto: x86/aes-ni - fix build error following fpu template removal
crypto: arm64/aes - fix handling sub-block CTS-CBC inputs
crypto: caam/qi2 - avoid double export
crypto: mxs-dcp - Fix AES issues
crypto: mxs-dcp - Fix SHA null hashes and output length
crypto: mxs-dcp - Implement sha import/export
crypto: aegis/generic - fix for big endian systems
crypto: morus/generic - fix for big endian systems
crypto: lrw - fix rebase error after out of bounds fix
crypto: cavium/nitrox - use pci_alloc_irq_vectors() while enabling MSI-X.
crypto: cavium/nitrox - NITROX command queue changes.
...
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quality field is currently documented as being 'per mill'. In fact the
math involved is:
add_hwgenerator_randomness((void *)rng_fillbuf, rc,
rc * current_quality * 8 >> 10);
thus the actual definition is "bits of entropy per 1024 bits of input".
The current documentation seems to have confused multiple people
in the past, let's fix the documentation to match code.
An alternative is to change core to match driver expectations, replacing
rc * current_quality * 8 >> 10
with
rc * current_quality / 1000
but that has performance costs, so probably isn't a good option.
Fixes: 0f734e6e768 ("hwrng: add per-device entropy derating")
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In commit 9f480faec58c ("crypto: chacha20 - Fix keystream alignment for
chacha20_block()"), I had missed that chacha20_block() can be called
directly on the buffer passed to get_random_bytes(), which can have any
alignment. So, while my commit didn't break anything, it didn't fully
solve the alignment problems.
Revert my solution and just update chacha20_block() to use
put_unaligned_le32(), so the output buffer need not be aligned.
This is simpler, and on many CPUs it's the same speed.
But, I kept the 'tmp' buffers in extract_crng_user() and
_get_random_bytes() 4-byte aligned, since that alignment is actually
needed for _crng_backtrack_protect() too.
Reported-by: Stephan Müller <smueller@chronox.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull TPM updates from James Morris:
"From Jarkko: The only new feature is non-blocking operation for
/dev/tpm0"
* 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
tpm: Restore functionality to xen vtpm driver.
tpm: add support for nonblocking operation
tpm: add ptr to the tpm_space struct to file_priv
tpm: Make SECURITYFS a weak dependency
tpm: suppress transmit cmd error logs when TPM 1.2 is disabled/deactivated
tpm: fix response size validation in tpm_get_random()
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Functionality of the xen-tpmfront driver was lost secondary to
the introduction of xenbus multi-page support in commit ccc9d90a9a8b
("xenbus_client: Extend interface to support multi-page ring").
In this commit pointer to location of where the shared page address
is stored was being passed to the xenbus_grant_ring() function rather
then the address of the shared page itself. This resulted in a situation
where the driver would attach to the vtpm-stubdom but any attempt
to send a command to the stub domain would timeout.
A diagnostic finding for this regression is the following error
message being generated when the xen-tpmfront driver probes for a
device:
<3>vtpm vtpm-0: tpm_transmit: tpm_send: error -62
<3>vtpm vtpm-0: A TPM error (-62) occurred attempting to determine
the timeouts
This fix is relevant to all kernels from 4.1 forward which is the
release in which multi-page xenbus support was introduced.
Daniel De Graaf formulated the fix by code inspection after the
regression point was located.
Fixes: ccc9d90a9a8b ("xenbus_client: Extend interface to support multi-page ring")
Signed-off-by: Dr. Greg Wettstein <greg@enjellic.com>
[boris: Updated commit message, added Fixes tag]
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org # v4.1+
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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Currently the TPM driver only supports blocking calls, which doesn't allow
asynchronous IO operations to the TPM hardware.
This patch changes it and adds support for nonblocking write and a new poll
function to enable applications, which want to take advantage of this.
Tested-by: Philip Tricca <philip.b.tricca@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off--by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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Add a ptr to struct tpm_space to the file_priv and consolidate
of the write operations for the two interfaces.
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Tested-by: Philip Tricca <philip.b.tricca@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off--by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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While having SECURITYFS enabled for the tpm subsystem is beneficial in
most cases, it is not strictly necessary to have it enabled at all.
Especially on platforms without any boot firmware integration of the TPM
(e.g. raspberry pi) it does not add any value for the tpm subsystem,
as there is no eventlog present.
By turning it from 'select' to 'imply' it still gets selected per
default, but enables users who want to save some kb of ram by turning
SECURITYFS off.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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For TPM 1.2 chips the system setup utility allows to set the TPM device in
one of the following states:
* Active: Security chip is functional
* Inactive: Security chip is visible, but is not functional
* Disabled: Security chip is hidden and is not functional
When choosing the "Inactive" state, the TPM 1.2 device is enumerated and
registered, but sending TPM commands fail with either TPM_DEACTIVATED or
TPM_DISABLED depending if the firmware deactivated or disabled the TPM.
Since these TPM 1.2 error codes don't have special treatment, inactivating
the TPM leads to a very noisy kernel log buffer that shows messages like
the following:
tpm_tis 00:05: 1.2 TPM (device-id 0x0, rev-id 78)
tpm tpm0: A TPM error (6) occurred attempting to read a pcr value
tpm tpm0: TPM is disabled/deactivated (0x6)
tpm tpm0: A TPM error (6) occurred attempting get random
tpm tpm0: A TPM error (6) occurred attempting to read a pcr value
ima: No TPM chip found, activating TPM-bypass! (rc=6)
tpm tpm0: A TPM error (6) occurred attempting get random
tpm tpm0: A TPM error (6) occurred attempting get random
tpm tpm0: A TPM error (6) occurred attempting get random
tpm tpm0: A TPM error (6) occurred attempting get random
Let's just suppress error log messages for the TPM_{DEACTIVATED,DISABLED}
return codes, since this is expected when the TPM 1.2 is set to Inactive.
In that case the kernel log is cleaner and less confusing for users, i.e:
tpm_tis 00:05: 1.2 TPM (device-id 0x0, rev-id 78)
tpm tpm0: TPM is disabled/deactivated (0x6)
ima: No TPM chip found, activating TPM-bypass! (rc=6)
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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When checking whether the response is large enough to be able to contain
the received random bytes in tpm_get_random() and tpm2_get_random(),
they fail to take account the header size, which should be added to the
minimum size. This commit fixes this issue.
Cc: stable@vger.kernel.org
Fixes: c659af78eb7b ("tpm: Check size of response before accessing data")
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull tty ioctl updates from Al Viro:
"This is the compat_ioctl work related to tty ioctls.
Quite a bit of dead code taken out, all tty-related stuff gone from
fs/compat_ioctl.c. A bunch of compat bugs fixed - some still remain,
but all more or less generic tty-related ioctls should be covered
(remaining issues are in things like driver-private ioctls in a pcmcia
serial card driver not getting properly handled in 32bit processes on
64bit host, etc)"
* 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (53 commits)
kill TIOCSERGSTRUCT
change semantics of ldisc ->compat_ioctl()
kill TIOCSER[SG]WILD
synclink_gt(): fix compat_ioctl()
pty: fix compat ioctls
compat_ioctl - kill keyboard ioctl handling
gigaset: add ->compat_ioctl()
vt_compat_ioctl(): clean up, use compat_ptr() properly
gigaset: don't try to printk userland buffer contents
dgnc: don't bother with (empty) stub for TCXONC
dgnc: leave TIOC[GS]SOFTCAR to ldisc
remove fallback to drivers for TIOCGICOUNT
dgnc: break-related ioctls won't reach ->ioctl()
kill the rest of tty COMPAT_IOCTL() entries
dgnc: TIOCM... won't reach ->ioctl()
isdn_tty: TCSBRK{,P} won't reach ->ioctl()
kill capinc_tty_ioctl()
take compat TIOC[SG]SERIAL treatment into tty_compat_ioctl()
synclink: reduce pointless checks in ->ioctl()
complete ->[sg]et_serial() switchover
...
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it's never getting called with TIOC[SG]SERIAL anymore (nor has
it ever supported those, while we are at it)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
Pull pcmcia fixes from Dominik Brodowski:
"These are just a few odd fixes and improvements to the PCMCIA core and
to a few PCMCIA device drivers"
* 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux:
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
pcmcia: pcmcia_resource: Replace mdelay() with msleep()
pcmcia: add error handling for pcmcia_enable_device in qlogic_stub
char: pcmcia: cm4000_cs: Replace mdelay with usleep_range in set_protocol
pcmcia: Use module_pcmcia_driver for scsi drivers
pcmcia: remove KERN_INFO level from debug message
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set_protocol() is never called in atomic context.
The call chains ending up at set_protocol() are:
[1] set_protocol() <- monitor_card()
[2] set_protocol() <- cmm_ioctl()
monitor_card() is only set in setup_timer(), and cmm_ioctl() is only
set as ".unlocked_ioctl" in file_operations structure "cm4000_fops".
Despite never getting called from atomic context, set_protocol() calls
mdelay(10), i.e. busy wait for 10ms.
That is not necessary and can be replaced with usleep_range to
avoid busy waiting.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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The KERN_INFO level is being appended to the "%s:" string in the DEBUGP
macro, so it isn't actually doing what was originally intended and instead
inserts it in the wrong place. Remove it so it is at least we're using
the DEBUGP macro consistently throughout the driver and we're not going
to lose any functionality in message level with change anyhow.
Caught by smatch static analysis:
drivers/char/pcmcia/cm4040_cs.c:509 cm4040_reader_release()
warn: KERN_* level not at start of string
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Please note that below oops is from an older kernel, but the same
race seems to be present in the upstream kernel too.
---8<---
The following panic was encountered during removing the ipmi_ssif
module:
[ 526.352555] Unable to handle kernel paging request at virtual address ffff000006923090
[ 526.360464] Mem abort info:
[ 526.363257] ESR = 0x86000007
[ 526.366304] Exception class = IABT (current EL), IL = 32 bits
[ 526.372221] SET = 0, FnV = 0
[ 526.375269] EA = 0, S1PTW = 0
[ 526.378405] swapper pgtable: 4k pages, 48-bit VAs, pgd = 000000008ae60416
[ 526.385185] [ffff000006923090] *pgd=000000bffcffe803, *pud=000000bffcffd803, *pmd=0000009f4731a003, *pte=0000000000000000
[ 526.396141] Internal error: Oops: 86000007 [#1] SMP
[ 526.401008] Modules linked in: nls_iso8859_1 ipmi_devintf joydev input_leds ipmi_msghandler shpchp sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear i2c_smbus hid_generic usbhid uas hid usb_storage ast aes_ce_blk i2c_algo_bit aes_ce_cipher qede ttm crc32_ce ptp crct10dif_ce drm_kms_helper ghash_ce syscopyarea sha2_ce sysfillrect sysimgblt pps_core fb_sys_fops sha256_arm64 sha1_ce mpt3sas qed drm raid_class ahci scsi_transport_sas libahci gpio_xlp i2c_xlp9xx aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [last unloaded: ipmi_ssif]
[ 526.468085] CPU: 125 PID: 0 Comm: swapper/125 Not tainted 4.15.0-35-generic #38~lp1775396+build.1
[ 526.476942] Hardware name: To be filled by O.E.M. Saber/Saber, BIOS 0ACKL022 08/14/2018
[ 526.484932] pstate: 00400009 (nzcv daif +PAN -UAO)
[ 526.489713] pc : 0xffff000006923090
[ 526.493198] lr : call_timer_fn+0x34/0x178
[ 526.497194] sp : ffff000009b0bdd0
[ 526.500496] x29: ffff000009b0bdd0 x28: 0000000000000082
[ 526.505796] x27: 0000000000000002 x26: ffff000009515188
[ 526.511096] x25: ffff000009515180 x24: ffff0000090f1018
[ 526.516396] x23: ffff000009519660 x22: dead000000000200
[ 526.521696] x21: ffff000006923090 x20: 0000000000000100
[ 526.526995] x19: ffff809eeb466a40 x18: 0000000000000000
[ 526.532295] x17: 000000000000000e x16: 0000000000000007
[ 526.537594] x15: 0000000000000000 x14: 071c71c71c71c71c
[ 526.542894] x13: 0000000000000000 x12: 0000000000000000
[ 526.548193] x11: 0000000000000001 x10: ffff000009b0be88
[ 526.553493] x9 : 0000000000000000 x8 : 0000000000000005
[ 526.558793] x7 : ffff80befc1f8528 x6 : 0000000000000020
[ 526.564092] x5 : 0000000000000040 x4 : 0000000020001b20
[ 526.569392] x3 : 0000000000000000 x2 : ffff809eeb466a40
[ 526.574692] x1 : ffff000006923090 x0 : ffff809eeb466a40
[ 526.579992] Process swapper/125 (pid: 0, stack limit = 0x000000002eb50acc)
[ 526.586854] Call trace:
[ 526.589289] 0xffff000006923090
[ 526.592419] expire_timers+0xc8/0x130
[ 526.596070] run_timer_softirq+0xec/0x1b0
[ 526.600070] __do_softirq+0x134/0x328
[ 526.603726] irq_exit+0xc8/0xe0
[ 526.606857] __handle_domain_irq+0x6c/0xc0
[ 526.610941] gic_handle_irq+0x84/0x188
[ 526.614679] el1_irq+0xe8/0x180
[ 526.617822] cpuidle_enter_state+0xa0/0x328
[ 526.621993] cpuidle_enter+0x34/0x48
[ 526.625564] call_cpuidle+0x44/0x70
[ 526.629040] do_idle+0x1b8/0x1f0
[ 526.632256] cpu_startup_entry+0x2c/0x30
[ 526.636174] secondary_start_kernel+0x11c/0x130
[ 526.640694] Code: bad PC value
[ 526.643800] ---[ end trace d020b0b8417c2498 ]---
[ 526.648404] Kernel panic - not syncing: Fatal exception in interrupt
[ 526.654778] SMP: stopping secondary CPUs
[ 526.658734] Kernel Offset: disabled
[ 526.662211] CPU features: 0x5800c38
[ 526.665688] Memory Limit: none
[ 526.668768] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
Prevent mod_timer from arming a timer that was already removed by
del_timer during module unload.
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Cc: <stable@vger.kernel.org> # 3.19
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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The spec was fairly confusing about how multi-part transmit messages
worked, so the original implementation only added support for two
part messages. But after talking about it with others and finding
something I missed, I think it makes more sense.
The spec mentions smbus command 8 in a table at the end of the
section on SSIF support as the end transaction. If that works,
then all is good and as it should be. However, some implementations
seem to use a middle transaction <32 bytes tomark the end because of the
confusion in the spec, even though that is an SMBus violation if
the number of bytes is zero.
So this change adds some tests, if command=8 works, it uses that,
otherwise if an empty end transaction works, it uses a middle
transaction <32 bytes to mark the end. If neither works, then
it limits the size to 63 bytes as it is now.
Cc: Harri Hakkarainen <harri@cavium.com>
Cc: Bazhenov, Dmitry <dmitry.bazhenov@auriga.com>
Cc: Mach, Dat <Dat.Mach@cavium.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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The IPMI DMI code was adding platform overrides, which is not
really an ideal solution. Switch to using the id_table in
the drivers to identify the devices.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Otherwise the memory is leaked.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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The algorithm to populate the I2C address list would leave holes
in the list on duplicates.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/char/ipmi/ipmi_msghandler.c: In function 'ipmi_set_my_LUN':
drivers/char/ipmi/ipmi_msghandler.c:1335:13: warning:
variable 'rv' set but not used [-Wunused-but-set-variable]
int index, rv = 0;
'rv' should be the correct return value.
Fixes: 048f7c3e352e ("ipmi: Properly release srcu locks on error conditions")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Cleanups, do the replacement and change the levels to the proper
ones for the function they are serving, as many were wrong.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Looking at logs from systems all over the place, it looks like tons
of broken systems exist that set the base address to zero. I can
only guess that is some sort of non-standard idea to mark the
interface as not being present. It can't be zero, anyway, so just
complain and ignore it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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It make things a little neater and saves some memory.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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getnstimeofday64() is deprecated because of the inconsistent naming,
it is only a wrapper around ktime_get_real_ts64() now, which could be
used as a direct replacement.
However, it is generally better to use CLOCK_MONOTONIC timestamps
where possible, to avoid glitches with a concurrent settimeofday()
or leap second.
The uses in ipmi are either for debugging prints or for comparing against
a prior timestamp, so using a monotonic ktime_get_ts64() is probably
best here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Shifting unsigned char b by an int type can lead to sign-extension
overflow. For example, if b is 0xff and the shift is 24, then top
bit is sign-extended so the final value passed to writeq has all
the upper 32 bits set. Fix this by casting b to a 64 bit unsigned
before the shift.
Detected by CoverityScan, CID#1465246 ("Unintended sign extension")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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I noticed that 4.17.0 logs the follwing during ipmi_si setup:
ipmi_si 0000:01:04.6: probing via PCI
(NULL device *): Could not setup I/O space
ipmi_si 0000:01:04.6: [mem 0xf5ef0000-0xf5ef00ff] regsize 1 spacing 1 irq 21
Fix the "NULL device *) by moving io.dev assignment before its potential
use by ipmi_pci_probe_regspacing().
Result:
ipmi_si 0000:01:04.6: probing via PCI
ipmi_si 0000:01:04.6: Could not setup I/O space
ipmi_si 0000:01:04.6: [mem 0xf5ef0000-0xf5ef00ff] regsize 1 spacing 1 irq 21
Signed-off-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Use the more common logging style.
Miscellanea:
o Convert old style continuation printks without KERN_CONT to pr_cont
o Coalesce formats
o Realign arguments
o Remove unnecessary casts
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Add and use #define pr_fmt/dev_fmt, and remove #define PFX
This also prefixes some messages that were not previously prefixed.
Miscellanea:
o Convert printk(KERN_<level> to pr_<level>(
o Use %s, __func__ where appropriate
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Standardize the prefixing of output messages using the pr_fmt and dev_fmt
mechanisms instead of a separate #define PFX
Miscellanea:
o Because this message prefix is very long, use a non-standard define
of #define pr_fmt(fmt) "%s" fmt, "IPMI message handler: "
which removes ~170 bytes of object code in an x86-64 defconfig with ipmi
(with even more object code reduction on 32 bit compilations)
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Signed-off-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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Since everything else has been converted.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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Pull IPMI bugfixes from Corey Minyard:
"A few fixes that came around or after the merge window, except for
commit cd2315d471f4 ("ipmi: kcs_bmc: don't change device name") which
is for a driver that very few people use, and those people need the
change"
* tag 'for-linus-4.19' of git://github.com/cminyard/linux-ipmi:
ipmi: Fix NULL pointer dereference in ssif_probe
ipmi: Fix I2C client removal in the SSIF driver
ipmi: Move BT capabilities detection to the detect call
ipmi: Rework SMI registration failure
ipmi: kcs_bmc: don't change device name
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There is a potential execution path in which function ssif_info_find()
returns NULL, hence there is a NULL pointer dereference when accessing
pointer *addr_info*
Fix this by null checking *addr_info* before dereferencing it.
Addresses-Coverity-ID: 1473145 ("Explicit null dereferenced")
Fixes: e333054a91d1 ("ipmi: Fix I2C client removal in the SSIF driver")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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The SSIF driver was removing any client that came in through the
platform interface, but it should only remove clients that it
added. On a failure in the probe function, this could result
in the following oops when the driver is removed and the
client gets unregistered twice:
CPU: 107 PID: 30266 Comm: rmmod Not tainted 4.18.0+ #80
Hardware name: Cavium Inc. Saber/Saber, BIOS Cavium reference firmware version 7.0 08/04/2018
pstate: 60400009 (nZCv daif +PAN -UAO)
pc : kernfs_find_ns+0x28/0x120
lr : kernfs_find_and_get_ns+0x40/0x60
sp : ffff00002310fb50
x29: ffff00002310fb50 x28: ffff800a8240f800
x27: 0000000000000000 x26: 0000000000000000
x25: 0000000056000000 x24: ffff000009073000
x23: ffff000008998b38 x22: 0000000000000000
x21: ffff800ed86de820 x20: 0000000000000000
x19: ffff00000913a1d8 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 5300737265766972
x13: 643d4d4554535953 x12: 0000000000000030
x11: 0000000000000030 x10: 0101010101010101
x9 : ffff800ea06cc3f9 x8 : 0000000000000000
x7 : 0000000000000141 x6 : ffff000009073000
x5 : ffff800adb706b00 x4 : 0000000000000000
x3 : 00000000ffffffff x2 : 0000000000000000
x1 : ffff000008998b38 x0 : ffff000008356760
Process rmmod (pid: 30266, stack limit = 0x00000000e218418d)
Call trace:
kernfs_find_ns+0x28/0x120
kernfs_find_and_get_ns+0x40/0x60
sysfs_unmerge_group+0x2c/0x6c
dpm_sysfs_remove+0x34/0x70
device_del+0x58/0x30c
device_unregister+0x30/0x7c
i2c_unregister_device+0x84/0x90 [i2c_core]
ssif_platform_remove+0x38/0x98 [ipmi_ssif]
platform_drv_remove+0x2c/0x6c
device_release_driver_internal+0x168/0x1f8
driver_detach+0x50/0xbc
bus_remove_driver+0x74/0xe8
driver_unregister+0x34/0x5c
platform_driver_unregister+0x20/0x2c
cleanup_ipmi_ssif+0x50/0xd82c [ipmi_ssif]
__arm64_sys_delete_module+0x1b4/0x220
el0_svc_handler+0x104/0x160
el0_svc+0x8/0xc
Code: aa1e03e0 aa0203f6 aa0103f7 d503201f (7940e280)
---[ end trace 09f0e34cce8e2d8c ]---
Kernel panic - not syncing: Fatal exception
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x23800c38
So track the clients that the SSIF driver adds and only remove
those.
Reported-by: George Cherian <george.cherian@cavium.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: George Cherian <george.cherian@cavium.com>
Cc: <stable@vger.kernel.org> # 4.14.x
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The capabilities detection was being done as part of the normal
state machine, but it was possible for it to be running while
the upper layers of the IPMI driver were initializing the
device, resulting in error and failure to initialize.
Move the capabilities detection to the the detect function,
so it's done before anything else runs on the device. This also
simplifies the state machine and removes some code, as a bonus.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reported-by: Andrew Banman <abanman@hpe.com>
Tested-by: Andrew Banman <abanman@hpe.com>
Cc: <stable@vger.kernel.org>
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There were certain situations where ipmi_register_smi() would
return a failure, but the interface would still be registered
and would need to be unregistered. This is obviously a bad
design and resulted in an oops in certain failure cases.
If the interface is started up in ipmi_register_smi(), then
an error occurs, shut down the interface there so the
cleanup can be done properly.
Fix the various smi users, too.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reported-by: Justin Ernst <justin.ernst@hpe.com>
Tested-by: Justin Ernst <justin.ernst@hpe.com>
Cc: Andrew Banman <abanman@hpe.com>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: <stable@vger.kernel.org> # 4.18.x
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kcs_bmc_alloc(...) calls dev_set_name(...) which is incorrect as most
bus driver frameworks, platform_driver in particular, assume that they
are able to set the device name themselves.
Signed-off-by: Benjamin Fair <benjaminfair@google.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random driver fix from Ted Ts'o:
"Fix things so the choice of whether or not to trust RDRAND to
initialize the CRNG is configurable via the boot option
random.trust_cpu={on,off}"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: make CPU trust a boot parameter
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Instead of forcing a distro or other system builder to choose
at build time whether the CPU is trusted for CRNG seeding via
CONFIG_RANDOM_TRUST_CPU, provide a boot-time parameter for end users to
control the choice. The CONFIG will set the default state instead.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"It is now possible to add custom sysfs attributes while avoiding a
possible race condition. Unused code has been removed resulting in a
nice reduction of the code base. And more drivers have been switched
to SPDX by their maintainers.
Summary:
Subsystem:
- new helpers to add custom sysfs attributes
- struct rtc_task removal along with rtc_irq_[un]register()
- rtc_irq_set_state and rtc_irq_set_freq are not exported anymore
Drivers:
- armada38x: reset after rtc power loss
- ds1307: now supports m41t11
- isl1208: now supports isl1219 and tamper detection
- pcf2127: internal SRAM support"
* tag 'rtc-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
rtc: ds1307: simplify hwmon config
rtc: s5m: Add SPDX license identifier
rtc: maxim: Add SPDX license identifiers
rtc: isl1219: add device tree documentation
rtc: isl1208: set ev-evienb bit from device tree
rtc: isl1208: Add "evdet" interrupt source for isl1219
rtc: isl1208: add support for isl1219 with tamper detection
rtc: sysfs: facilitate attribute add to rtc device
rtc: remove struct rtc_task
char: rtc: remove task handling
rtc: pcf85063: preserve control register value between stop and start
rtc: sh: remove unused variable rtc_dev
rtc: unexport rtc_irq_set_*
rtc: simplify rtc_irq_set_state/rtc_irq_set_freq
rtc: remove irq_task and irq_task_lock
rtc: remove rtc_irq_register/rtc_irq_unregister
rtc: sh: remove dead code
rtc: sa1100: don't set PIE frequency
rtc: ds1307: support m41t11 variant
rtc: ds1307: fix data pointer to m41t0
...
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Since commit 9e7002a70e42 ("char: rtc: remove unused rtc_control() API"),
it is not possible to set a callback anymore, remove its handling from the
interrupt handler.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level hardware
bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of the
crazy out-of-tree drivers that have been floating around for years,
combined with some really hacky userspace implementations. This is
only for GNSS receivers, but you have to start somewhere, and this
is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and
existing drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
android: binder: Rate-limit debug and userspace triggered err msgs
fsi: sbefifo: Bump max command length
fsi: scom: Fix NULL dereference
misc: mic: SCIF Fix scif_get_new_port() error handling
misc: cxl: changed asterisk position
genwqe: card_base: Use true and false for boolean values
misc: eeprom: assignment outside the if statement
uio: potential double frees if __uio_register_device() fails
eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
misc: ti-st: Fix memory leak in the error path of probe()
android: binder: Show extra_buffers_size in trace
firmware: vpd: Fix section enabled flag on vpd_section_destroy
platform: goldfish: Retire pdev_bus
goldfish: Use dedicated macros instead of manual bit shifting
goldfish: Add missing includes to goldfish.h
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
dt-bindings: mux: add adi,adgs1408
Drivers: hv: vmbus: Cleanup synic memory free path
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
...
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Simplifies the code and is more conventional to what's used in the rest
of the kernel for debugfs ops.
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Reviewed-by: Amit Shah <amit@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We want the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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At over 4000 #includes, <linux/platform_device.h> is the 9th most
#included header file in the Linux kernel. It does not need
<linux/mod_devicetable.h>, so drop that header and explicitly add
<linux/mod_devicetable.h> to source files that need it.
4146 #include <linux/platform_device.h>
After this patch, there are 225 files that use <linux/mod_devicetable.h>,
for a reduction of around 3900 times that <linux/mod_devicetable.h>
does not have to be read & parsed.
225 #include <linux/mod_devicetable.h>
This patch was build-tested on 20 different arch-es.
It also makes these drivers SubmitChecklist#1 compliant.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <lkp@intel.com> # drivers/media/platform/vimc/
Reported-by: kbuild test robot <lkp@intel.com> # drivers/pinctrl/pinctrl-u300.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pointer dev is being assigned but is never used hence it is redundant
and can be removed.
Cleans up clang warning:
warning: variable ‘dev’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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