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Convert binding from text format to YAML.
Additions to original text binding:
- add rs485 reference.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230927160153.2717788-3-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert driver to be property provider agnostic and allow it to be
used on non-OF platforms.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230927160153.2717788-2-hugo@hugovil.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Many SoCs do not integrate DMA for the amba pl011 UART, causing
the following message on boot:
uart-pl011 80074000.serial: no DMA platform data
The UART still works in PIO, so better not to print such message that
may confuse people by causing them to think that there is something wrong
with the UART.
Change the message to debug level.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20230928145842.466933-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Lockdep complains about possible circular locking dependencies when the
i.MX SDMA driver issues console messages under its spinlock. While the
SDMA driver calls back into the UART when issuing a message, the i.MX
UART driver will never call back into the SDMA driver for this UART,
because DMA is explicitly not used for UARTs providing the console.
To avoid the lockdep warnings put the UART port lock for console devices
into a separate subclass.
This fixes possible deadlock warnings like the following which was
provoked by adding a printk to the i.MX SDMA driver at a place where the
driver holds its spinlock.
======================================================
WARNING: possible circular locking dependency detected
6.6.0-rc3-00045-g517852be693b-dirty #110 Not tainted
------------------------------------------------------
swapper/0/0 is trying to acquire lock:
c1818e04 (console_owner){-...}-{0:0}, at: console_flush_all+0x1c4/0x634
but task is already holding lock:
c44649e0 (&vc->lock){-...}-{3:3}, at: sdma_int_handler+0xc4/0x368
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&vc->lock){-...}-{3:3}:
_raw_spin_lock_irqsave+0x4c/0x68
sdma_prep_dma_cyclic+0x1a8/0x21c
imx_uart_startup+0x44c/0x5d4
uart_startup+0x120/0x2b0
uart_port_activate+0x44/0x98
tty_port_open+0x80/0xd0
uart_open+0x18/0x20
tty_open+0x120/0x664
chrdev_open+0xc0/0x214
do_dentry_open+0x1d0/0x544
path_openat+0xbb0/0xea0
do_filp_open+0x5c/0xd4
do_sys_openat2+0xb8/0xf0
sys_openat+0x8c/0xd8
ret_fast_syscall+0x0/0x1c
-> #1 (&port_lock_key){-.-.}-{3:3}:
_raw_spin_lock_irqsave+0x4c/0x68
imx_uart_console_write+0x164/0x1a0
console_flush_all+0x220/0x634
console_unlock+0x64/0x164
vprintk_emit+0xb0/0x390
vprintk_default+0x24/0x2c
_printk+0x2c/0x5c
register_console+0x244/0x478
serial_core_register_port+0x5c4/0x618
imx_uart_probe+0x4e0/0x7d4
platform_probe+0x58/0xb0
really_probe+0xc4/0x2e0
__driver_probe_device+0x84/0x1a0
driver_probe_device+0x2c/0x108
__driver_attach+0x94/0x17c
bus_for_each_dev+0x7c/0xd0
bus_add_driver+0xc4/0x1cc
driver_register+0x7c/0x114
imx_uart_init+0x20/0x40
do_one_initcall+0x7c/0x3c4
kernel_init_freeable+0x17c/0x228
kernel_init+0x14/0x140
ret_from_fork+0x14/0x24
-> #0 (console_owner){-...}-{0:0}:
__lock_acquire+0x14b0/0x29a0
lock_acquire.part.0+0xb4/0x264
console_flush_all+0x20c/0x634
console_unlock+0x64/0x164
vprintk_emit+0xb0/0x390
vprintk_default+0x24/0x2c
_printk+0x2c/0x5c
sdma_int_handler+0xcc/0x368
__handle_irq_event_percpu+0x94/0x2d0
handle_irq_event+0x38/0xd0
handle_fasteoi_irq+0x98/0x248
handle_irq_desc+0x1c/0x2c
gic_handle_irq+0x6c/0x90
generic_handle_arch_irq+0x2c/0x64
__irq_svc+0x90/0xbc
cpuidle_enter_state+0x1a0/0x4f4
cpuidle_enter+0x30/0x40
do_idle+0x210/0x2b4
cpu_startup_entry+0x28/0x2c
rest_init+0xd0/0x184
arch_post_acpi_subsys_init+0x0/0x8
other info that might help us debug this:
Chain exists of:
console_owner --> &port_lock_key --> &vc->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&vc->lock);
lock(&port_lock_key);
lock(&vc->lock);
lock(console_owner);
*** DEADLOCK ***
3 locks held by swapper/0/0:
#0: c44649e0 (&vc->lock){-...}-{3:3}, at: sdma_int_handler+0xc4/0x368
#1: c1818d50 (console_lock){+.+.}-{0:0}, at: vprintk_default+0x24/0x2c
#2: c1818d08 (console_srcu){....}-{0:0}, at: console_flush_all+0x44/0x634
stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.6.0-rc3-00045-g517852be693b-dirty #110
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
unwind_backtrace from show_stack+0x10/0x14
show_stack from dump_stack_lvl+0x60/0x90
dump_stack_lvl from check_noncircular+0x184/0x1b8
check_noncircular from __lock_acquire+0x14b0/0x29a0
__lock_acquire from lock_acquire.part.0+0xb4/0x264
lock_acquire.part.0 from console_flush_all+0x20c/0x634
console_flush_all from console_unlock+0x64/0x164
console_unlock from vprintk_emit+0xb0/0x390
vprintk_emit from vprintk_default+0x24/0x2c
vprintk_default from _printk+0x2c/0x5c
_printk from sdma_int_handler+0xcc/0x368
sdma_int_handler from __handle_irq_event_percpu+0x94/0x2d0
__handle_irq_event_percpu from handle_irq_event+0x38/0xd0
handle_irq_event from handle_fasteoi_irq+0x98/0x248
handle_fasteoi_irq from handle_irq_desc+0x1c/0x2c
handle_irq_desc from gic_handle_irq+0x6c/0x90
gic_handle_irq from generic_handle_arch_irq+0x2c/0x64
generic_handle_arch_irq from __irq_svc+0x90/0xbc
Exception stack(0xc1801ee8 to 0xc1801f30)
1ee0: ffffffff ffffffff 00000001 00030349 00000000 00000012
1f00: 00000000 d7e45f4b 00000012 00000000 d7e16d63 c1810828 00000000 c1801f38
1f20: c108125c c1081260 60010013 ffffffff
__irq_svc from cpuidle_enter_state+0x1a0/0x4f4
cpuidle_enter_state from cpuidle_enter+0x30/0x40
cpuidle_enter from do_idle+0x210/0x2b4
do_idle from cpu_startup_entry+0x28/0x2c
cpu_startup_entry from rest_init+0xd0/0x184
rest_init from arch_post_acpi_subsys_init+0x0/0x8
Reported-by: Tim van der Staaij <Tim.vanderstaaij@zigngroup.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20230928064320.711603-1-s.hauer@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When port type 18 was removed, it was deduced that the code could go but
its define has to stay because it is used in userspace. Share that
knowledge by adding a comment about it.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20230922063642.4120-3-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove the GPL boilerplate since we have a valid SPDX entry. Also,
remove the outdated filename from the comment.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230922063642.4120-2-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct pci1xxxx_8250.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Cc: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175242.work.442-kees@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sealevel XR17V35X based cards utilize DTR to control RS-485 Enable, but
the current implementation of 8250_exar uses RTS for the auto-RS485-Enable
mode of the XR17V35X UARTs. This patch implements DTR Auto-RS485 on
Sealevel cards.
Signed-off-by: Matthew Howell <matthew.howell@sealevel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenkoa@linux.intel.com>
Link: https://lore.kernel.org/r/4b8ad8ab6728742464c4e048fdeecb2b40522aef.camel@sealevel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hardware ID of Sealevel 7xxxC cards changed prior to release.
This has rendered 14ee78d5932a redundant.
This reverts commit 14ee78d5932afeb710c8305196a676a715bfdea8.
Signed-off-by: Matthew Howell <matthew.howell@sealevel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/8ffa2f583ff142c3b0eb6cf51a7c9cef5dbfd320.camel@sealevel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
strlcpy() reads the entire source buffer first and returns the size of
the source string, not the destination string, which can be accidentally
misused [1].
The copy_to_user() call uses @len returned from strlcpy() directly
without checking its value. This could potentially lead to read
overflow. There is no existing bug since @len is always guaranteed to be
greater than hardcoded strings in @func_table[kb_func]. But as written
it is very fragile and specifically uses a strlcpy() result without sanity
checking and using it to copy to userspace.
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeems@google.com>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230919192156.121503-1-azeems@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the function name to avoid a kernel-doc warning:
include/linux/serial_core.h:666: warning: expecting prototype for uart_port_lock_irqrestore(). Prototype was for uart_port_unlock_irqrestore() instead
Fixes: b0af4bcb4946 ("serial: core: Provide port lock wrappers")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: linux-serial@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Link: https://lore.kernel.org/r/20230927044128.4748-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct mxser_board.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: linux-serial@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175245.work.196-kees@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The i.MX UART can be used as a wake-up source, document the 'wakeup-source'
property as allowed property.
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20230921192729.71259-1-marex@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
imx23 and imx28 are SoCs from the same family (mxs) and they share the
same AUART block, so the same programming model.
imx23 is the first member of this family. It had an AUART DMA erratum.
imx28 is the second member of this family and has this erratum fixed.
imx28.dtsi uses the following description:
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
Make it valid so that the following schema warning could be avoided:
imx28-apx4devkit.dtb: serial@8006a000: compatible: ['fsl,imx28-auart', 'fsl,imx23-auart'] is too long
from schema $id: http://devicetree.org/schemas/serial/fsl-mxs-auart.yaml#
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230921133733.224602-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use devm_clk_get_optional_enabled() to simplify the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230919195513.3197930-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now, the "jumped-over" code is simple enough to be put inside an 'if'.
Do so to make it 'goto'-less.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-16-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
msleep_interruptible() will check on its own. So no need to do the check
in send_break() before calling the above.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-15-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the driver sets TTY_DRIVER_HARDWARE_BREAK, we leave ops->break_ctl()
to the driver and return from send_break(). But we do it using a local
variable and keep the code flowing through the end of the function.
Instead, do 'return' immediately with the ops->break_ctl()'s return
value.
This way, we don't have to stuff the 'else' branch of the 'if' with the
software break handling. And we can re-indent the function too.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-14-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
And make an explicit constant for zero too. This allows for easier type
checking of the parameter.
Note: tty_struct::flow_change is kept as int because include/tty.h
(tty_struct) doesn't see tty/tty.h (this enum).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
An ndash used instead of a single dash renders a bullet to the result.
So use only single dashes in kernel-doc.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-11-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty_kref_get() is already included in Documentation, but is not properly
formatted. Fix this.
tty_get_baud_rate() is neither properly formatted, nor is included. Fix
both.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-10-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ioctl helpers are well documented, except they are not plugged in
the Documentation. So fix up the minor issues in the kernel-doc and plug
it in.
The minor issues include:
* bad \t on every line (sphinx misinterprets the description otherwise)
* missing colon after Return
* superfluous \n after the comment
* make some struct members and constants a hyperlink
* and so on
Perhaps better to use --word-diff if one wants to see the "real"
changes.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-9-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If tty_{,un}throttle_safe() returned true on success (similar to
*_trylock()), it would make the conditions in callers more obvious. So
perform the switch to these inverted values (and fix the callers).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-8-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
They return 0 or 1 -- a boolean value, so make it clear than noone
should expect negative or other values.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-7-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This change gets rid of the complicated exit from the loops. It can be
done much easier using do-while loops.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make "no numbers available" a fast quit from the function. And do the
heavy work outside the 'if'. This makes the code more understandable and
conforming to the common kernel coding style.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230919085156.1578-5-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
n is a minimum of:
* available chars in the ring buffer
* available chars in the ring buffer till the end of the ring buffer
* requested number (*nr)
We can use min3() for that instead of two min()s.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The value stored to the current 'retval' is number of characters. It is
both obtained and put to user as unsigned. So make its type unsigned.
And provided it's not a "return value" per se, rename it to 'num'.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In n_tty_read(), there is a separate int variable 'c' and is used only
to hold an int value returned from job_control(). There is also a
'retval' variable typed ssize_t. So drop this single occurrence of 'c'
and reuse 'retval' which is used on all other places to hold the value
returned from n_tty_read().
Note that 'retval' needs not be initialized now. Drop that.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make the error messages format unified by switching to use
dev_err_probe() where it makes sense.
This also helps simplifing the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20230918103648.1185663-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Fix the module compression with xz so the in-kernel decompressor works
- Document a kconfig idiom to express an optional dependency between
modules
- Make modpost, when W=1 is given, detect broken drivers that reference
.exit.* sections
- Remove unused code
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Merge tag 'kbuild-fixes-v6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix the module compression with xz so the in-kernel decompressor
works
- Document a kconfig idiom to express an optional dependency between
modules
- Make modpost, when W=1 is given, detect broken drivers that reference
.exit.* sections
- Remove unused code
* tag 'kbuild-fixes-v6.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: remove stale code for 'source' symlink in packaging scripts
modpost: Don't let "driver"s reference .exit.*
vmlinux.lds.h: remove unused CPU_KEEP and CPU_DISCARD macros
modpost: add missing else to the "of" check
Documentation: kbuild: explain handling optional dependencies
kbuild: Use CRC32 and a 1MiB dictionary for XZ compressed modules
to issues which were introduced after 6.5.
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Merge tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"Fourteen hotfixes, eleven of which are cc:stable. The remainder
pertain to issues which were introduced after 6.5"
* tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
Crash: add lock to serialize crash hotplug handling
selftests/mm: fix awk usage in charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh that may cause error
mm: mempolicy: keep VMA walk if both MPOL_MF_STRICT and MPOL_MF_MOVE are specified
mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
mm, memcg: reconsider kmem.limit_in_bytes deprecation
mm: zswap: fix potential memory corruption on duplicate store
arm64: hugetlb: fix set_huge_pte_at() to work with all swap entries
mm: hugetlb: add huge page size param to set_huge_pte_at()
maple_tree: add MAS_UNDERFLOW and MAS_OVERFLOW states
maple_tree: add mas_is_active() to detect in-tree walks
nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
mm: abstract moving to the next PFN
mm: report success more often from filemap_map_folio_range()
fs: binfmt_elf_efpic: fix personality for ELF-FDPIC
Here is a single, much requested, fix for a set of misc drivers to
resolve a much reported regression in the -rc series that has also
propagated back to the stable releases. Sorry for the delay, lots of
conference travel for a few weeks put me very far behind in patch
wrangling.
It has been reported by many to resolve the reported problem, and has
been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver fix from Greg KH:
"Here is a single, much requested, fix for a set of misc drivers to
resolve a much reported regression in the -rc series that has also
propagated back to the stable releases. Sorry for the delay, lots of
conference travel for a few weeks put me very far behind in patch
wrangling.
It has been reported by many to resolve the reported problem, and has
been in linux-next with no reported issues"
* tag 'char-misc-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc: rtsx: Fix some platforms can not boot and move the l1ss judgment to probe
Here are 2 tty/serial driver fixes for 6.6-rc4 that resolve some
reported regressions:
- revert a n_gsm change that ended up causing problems
- 8250_port fix for irq data
both have been in linux-next for over a week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver fixes from Greg KH:
"Here are two tty/serial driver fixes for 6.6-rc4 that resolve some
reported regressions:
- revert a n_gsm change that ended up causing problems
- 8250_port fix for irq data
both have been in linux-next for over a week with no reported
problems"
* tag 'tty-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
serial: 8250_port: Check IRQ data before use
AMD-derived Hygon processors, and fix a SGX kernel crash in the
page fault handler that can trigger when ksgxd races to reclaim
the SECS special page, by making the SECS page unswappable.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes: a kerneldoc build warning fix, add SRSO mitigation for
AMD-derived Hygon processors, and fix a SGX kernel crash in the page
fault handler that can trigger when ksgxd races to reclaim the SECS
special page, by making the SECS page unswappable"
* tag 'x86-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Resolves SECS reclaim vs. page fault for EAUG race
x86/srso: Add SRSO mitigation for Hygon processors
x86/kgdb: Fix a kerneldoc warning when build with W=1
may trigger when timer/hrtimer softirqs are pending, which
are otherwise hotplug-safe and don't merit a warning.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Ingo Molnar:
"Fix a spurious kernel warning during CPU hotplug events that may
trigger when timer/hrtimer softirqs are pending, which are otherwise
hotplug-safe and don't merit a warning"
* tag 'timers-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Tag (hr)timer softirq as hotplug safe
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Ingo Molnar:
"Fix a RT tasks related lockup/live-lock during CPU offlining"
* tag 'sched-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/rt: Fix live lock between select_fallback_rq() and RT push
and fix kexec kernel PMI handlers on AMD systems that get loaded
on older kernels that have an unexpected register state.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fixes from Ingo Molnar:
"Misc fixes: work around an AMD microcode bug on certain models, and
fix kexec kernel PMI handlers on AMD systems that get loaded on older
kernels that have an unexpected register state"
* tag 'perf-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/amd: Do not WARN() on every IRQ
perf/x86/amd/core: Fix overflow reset on hotplug
Since commit d8131c2965d5 ("kbuild: remove $(MODLIB)/source symlink"),
modules_install does not create the 'source' symlink.
Remove the stale code from builddeb and kernel.spec.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Drivers must not reference functions marked with __exit as these likely
are not available when the code is built-in.
There are few creative offenders uncovered for example in ARCH=amd64
allmodconfig builds. So only trigger the section mismatch warning for
W=1 builds.
The dual rule that drivers must not reference .init.* is implemented
since commit 0db252452378 ("modpost: don't allow *driver to reference
.init.*") which however missed that .exit.* should be handled in the
same way.
Thanks to Masahiro Yamada and Arnd Bergmann who gave valuable hints to
find this improvement.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Remove the left-over of commit e24f6628811e ("modpost: remove all
traces of cpuinit/cpuexit sections").
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Without this 'else' statement, an "usb" name goes into two handlers:
the first/previous 'if' statement _AND_ the for-loop over 'devtable',
but the latter is useless as it has no 'usb' device_id entry anyway.
Tested with allmodconfig before/after patch; no changes to *.mod.c:
git checkout v6.6-rc3
make -j$(nproc) allmodconfig
make -j$(nproc) olddefconfig
make -j$(nproc)
find . -name '*.mod.c' | cpio -pd /tmp/before
# apply patch
make -j$(nproc)
find . -name '*.mod.c' | cpio -pd /tmp/after
diff -r /tmp/before/ /tmp/after/
# no difference
Fixes: acbef7b76629 ("modpost: fix module autoloading for OF devices with generic compatible property")
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
These are teh latest bug fixes that have come up in the soc tree.
Most of these are fairly minor. Most notably, the majority of
changes this time are not for dts files as usual.
- Updates to the addresses of the broadcom and aspeed entries in the
MAINTAINERS file.
- Defconfig updates to address a regression on samsung and a build
warning from an unknown Kconfig symbol
- Build fixes for the StrongARM and Uniphier platforms
- Code fixes for SCMI and FF-A firmware drivers, both of which had
a simple bug that resulted in invalid data, and a lesser fix for
the optee firmware driver
- Multiple fixes for the recently added loongson/loongarch "guts"
soc driver
- Devicetree fixes for RISC-V on the startfive platform, addressing
issues with NOR flash, usb and uart.
- Multiple fixes for NXP i.MX8/i.MX9 dts files, fixing problems
with clock, gpio, hdmi settings and the Makefile
- Bug fixes for i.MX firmware code and the OCOTP soc driver
- Multiple fixes for the TI sysc bus driver
- Minor dts updates for TI omap dts files, to address boot
time warnings and errors
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Merge tag 'soc-fixes-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"These are the latest bug fixes that have come up in the soc tree. Most
of these are fairly minor. Most notably, the majority of changes this
time are not for dts files as usual.
- Updates to the addresses of the broadcom and aspeed entries in the
MAINTAINERS file.
- Defconfig updates to address a regression on samsung and a build
warning from an unknown Kconfig symbol
- Build fixes for the StrongARM and Uniphier platforms
- Code fixes for SCMI and FF-A firmware drivers, both of which had a
simple bug that resulted in invalid data, and a lesser fix for the
optee firmware driver
- Multiple fixes for the recently added loongson/loongarch "guts" soc
driver
- Devicetree fixes for RISC-V on the startfive platform, addressing
issues with NOR flash, usb and uart.
- Multiple fixes for NXP i.MX8/i.MX9 dts files, fixing problems with
clock, gpio, hdmi settings and the Makefile
- Bug fixes for i.MX firmware code and the OCOTP soc driver
- Multiple fixes for the TI sysc bus driver
- Minor dts updates for TI omap dts files, to address boot time
warnings and errors"
* tag 'soc-fixes-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (35 commits)
MAINTAINERS: Fix Florian Fainelli's email address
arm64: defconfig: enable syscon-poweroff driver
ARM: locomo: fix locomolcd_power declaration
soc: loongson: loongson2_guts: Remove unneeded semicolon
soc: loongson: loongson2_guts: Convert to devm_platform_ioremap_resource()
soc: loongson: loongson_pm2: Populate children syscon nodes
dt-bindings: soc: loongson,ls2k-pmc: Allow syscon-reboot/syscon-poweroff as child
soc: loongson: loongson_pm2: Drop useless of_device_id compatible
dt-bindings: soc: loongson,ls2k-pmc: Use fallbacks for ls2k-pmc compatible
soc: loongson: loongson_pm2: Add dependency for INPUT
arm64: defconfig: remove CONFIG_COMMON_CLK_NPCM8XX=y
ARM: uniphier: fix cache kernel-doc warnings
MAINTAINERS: aspeed: Update Andrew's email address
MAINTAINERS: aspeed: Update git tree URL
firmware: arm_ffa: Don't set the memory region attributes for MEM_LEND
arm64: dts: imx: Add imx8mm-prt8mm.dtb to build
arm64: dts: imx8mm-evk: Fix hdmi@3d node
soc: imx8m: Enable OCOTP clock for imx8mm before reading registers
arm64: dts: imx8mp-beacon-kit: Fix audio_pll2 clock
arm64: dts: imx8mp: Fix SDMA2/3 clocks
...
- Make sure 32 bit applications using user events have aligned access when
running on a 64 bit kernel.
- Add cond_resched in the loop that handles converting enums in print_fmt
string is trace events.
- Fix premature wake ups of polling processes in the tracing ring buffer. When
a task polls waiting for a percentage of the ring buffer to be filled, the
writer still will wake it up at every event. Add the polling's percentage to
the "shortest_full" list to tell the writer when to wake it up.
- For eventfs dir lookups on dynamic events, an event system's only event could
be removed, leaving its dentry with no children. This is totally legitimate.
But in eventfs_release() it must not access the children array, as it is only
allocated when the dentry has children.
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Merge tag 'trace-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Make sure 32-bit applications using user events have aligned access
when running on a 64-bit kernel.
- Add cond_resched in the loop that handles converting enums in
print_fmt string is trace events.
- Fix premature wake ups of polling processes in the tracing ring
buffer. When a task polls waiting for a percentage of the ring buffer
to be filled, the writer still will wake it up at every event. Add
the polling's percentage to the "shortest_full" list to tell the
writer when to wake it up.
- For eventfs dir lookups on dynamic events, an event system's only
event could be removed, leaving its dentry with no children. This is
totally legitimate. But in eventfs_release() it must not access the
children array, as it is only allocated when the dentry has children.
* tag 'trace-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
eventfs: Test for dentries array allocated in eventfs_release()
tracing/user_events: Align set_bit() address for all archs
tracing: relax trace_event_eval_update() execution with cond_resched()
ring-buffer: Update "shortest_full" in polling
