Michael S. Tsirkin bd2b617c49 virtio-rng: fix DMA alignment for data buffer ...

The data buffer in struct virtrng_info is used for DMA_FROM_DEVICE via
virtqueue_add_inbuf() and shares cachelines with the adjacent
CPU-written fields (data_avail, data_idx).

The device writing to the DMA buffer and the CPU writing to adjacent
fields could corrupt each other's data on non-cache-coherent platforms.

Add __dma_from_device_group_begin()/end() annotations to place these
in distinct cache lines.

Message-ID: <157a63b6324d1f1307ddd4faa3b62a8b90a79423.1767601130.git.mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

2026-01-08 09:54:27 -05:00

..

agp

agp/amd64: Check AGP Capability before binding to unsupported devices

2025-07-09 07:23:09 +02:00

hw_random

virtio-rng: fix DMA alignment for data buffer

2026-01-08 09:54:27 -05:00

ipmi

Merge tag 'for-linus-6.19-1' of https://github.com/cminyard/linux-ipmi

2025-12-05 20:49:24 -08:00

mwave

char/mwave: drop typedefs

2025-11-26 14:40:46 +01:00

tpm

tpm2-sessions: Open code tpm_buf_append_hmac_session()

2025-12-05 06:42:51 +02:00

xilinx_hwicap

char: Switch back to struct platform_driver::remove()

2024-11-05 05:33:47 +01:00

xillybus

char: xillybus: add WQ_UNBOUND to alloc_workqueue users

2025-11-26 15:09:43 +01:00

adi.c

char/adi: Use min_t(size_t,,) in adi_read() + adi_write()

2025-10-22 07:53:49 +02:00

apm-emulation.c

apm-emulation: remove unused __apm_get_power_status

2025-10-22 07:59:57 +02:00

applicom.c

char: applicom: fix NULL pointer dereference in ac_ioctl

2025-11-28 17:13:34 +01:00

applicom.h

…

bsr.c

bsr: add missing MODULE_DESCRIPTION() macro

2024-07-03 16:40:53 +02:00

ds1620.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

dsp56k.c

dsp56k: add missing MODULE_DESCRIPTION() macro

2024-07-03 16:40:26 +02:00

dtlk.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

hangcheck-timer.c

hangcheck-timer: fix coding style spacing

2025-11-26 15:11:15 +01:00

hpet.c

hpet: Use str_plural() to simplify the code

2025-08-19 12:50:36 +02:00

Kconfig

drivers: char: SONYPI depends on HAS_IOPORT

2025-06-24 16:44:19 +01:00

lp.c

parport: Remove parport_driver.devmodel

2024-07-03 16:44:22 +02:00

Makefile

char: misc: Move drivers/misc/misc_minor_kunit.c to drivers/char/

2025-08-19 12:41:17 +02:00

mem.c

mm: update mem char driver to use mmap_prepare

2025-11-16 17:28:13 -08:00

misc_minor_kunit.c

char: misc: Add a case to test registering miscdevice again without reinitialization

2025-08-19 12:41:17 +02:00

misc.c

char: Use list_del_init() in misc_deregister() to reinitialize list pointer

2025-09-06 19:43:18 +02:00

nsc_gpio.c

…

nvram.c

char: add missing MODULE_DESCRIPTION() macros

2024-06-04 17:40:17 +02:00

nwbutton.c

char: add missing NetWinder MODULE_DESCRIPTION() macros

2024-07-31 13:47:45 +02:00

nwbutton.h

…

nwflash.c

char: add missing NetWinder MODULE_DESCRIPTION() macros

2024-07-31 13:47:45 +02:00

pc8736x_gpio.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

powernv-op-panel.c

char: Switch back to struct platform_driver::remove()

2024-11-05 05:33:47 +01:00

ppdev.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

ps3flash.c

…

random.c

Merge tag 'random-6.19-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

2025-12-02 19:00:26 -08:00

scx200_gpio.c

[tree-wide] finally take no_llseek out

2024-09-27 08:18:43 -07:00

sonypi.c

sonypi: Use str_on_off() helper in sonypi_display_info()

2025-02-20 15:25:09 +01:00

tlclk.c

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

toshiba.c

module: remove never implemented MODULE_SUPPORTED_DEVICE

2021-03-17 13:16:18 -07:00

ttyprintk.c

char: add missing MODULE_DESCRIPTION() macros

2024-06-04 17:40:17 +02:00

uv_mmtimer.c

…

virtio_console.c

virtio_console: fix order of fields cols and rows

2025-04-18 10:08:11 -04:00