torvalds/linux
torvalds/linux
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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code
8b7ab8eb52
linux/arch/um/drivers
History
Tiwei Bie 2d65fc13be um: vector: Reduce stack usage in vector_eth_configure() 
When compiling with clang (19.1.7), initializing *vp using a compound
literal may result in excessive stack usage. Fix it by initializing the
required fields of *vp individually.

Without this patch:

$ objdump -d arch/um/drivers/vector_kern.o | ./scripts/checkstack.pl x86_64 0
...
0x0000000000000540 vector_eth_configure [vector_kern.o]:1472
...

With this patch:

$ objdump -d arch/um/drivers/vector_kern.o | ./scripts/checkstack.pl x86_64 0
...
0x0000000000000540 vector_eth_configure [vector_kern.o]:208
...

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506221017.WtB7Usua-lkp@intel.com/
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250623110829.314864-1-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2025-06-25 09:28:17 +02:00
..
chan_kern.c um: chan_kern: use raw spinlock for irqs_to_free_lock 2025-06-02 11:23:22 +02:00
chan_user.c um: Use os_set_pdeathsig helper in winch thread/process 2024-10-25 11:34:55 +02:00
chan_user.h tty: um: convert to u8/__u8 and size_t 2023-12-08 12:02:38 +01:00
chan.h um: chan: use blocking IO for console output for time-travel 2024-07-03 12:18:02 +02:00
cow_sys.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cow_user.c um: ubd: use 64-bit time_t where possible 2019-12-18 18:07:31 +01:00
cow.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
fd.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
harddog_kern.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
harddog_user_exp.c um: harddog: fix modular build 2023-05-10 00:21:30 +02:00
harddog_user.c um: harddog: fix modular build 2023-05-10 00:21:30 +02:00
harddog.h um: harddog: fix modular build 2023-05-10 00:21:30 +02:00
hostaudio_kern.c um: hostaudio: Do not propagate mixer parameter to kernel 2024-10-23 09:52:49 +02:00
Kconfig um: Remove legacy network transport infrastructure 2025-05-05 10:26:59 +02:00
line.c um: line: always fill *error_out in setup_one_line() 2024-07-04 12:03:14 +02:00
line.h tty: um: convert to u8/__u8 and size_t 2023-12-08 12:02:38 +01:00
Makefile um: Remove legacy network transport infrastructure 2025-05-05 10:26:59 +02:00
mconsole_kern.c um: Refactor deprecated strncpy to memcpy 2023-08-26 22:48:38 +02:00
mconsole_kern.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
mconsole_user.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
mconsole.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
mmapper_kern.c um: mmaper: add __exit annotations to module exit funcs 2022-09-19 23:01:50 +02:00
null.c tty: um: convert to u8/__u8 and size_t 2023-12-08 12:02:38 +01:00
port_kern.c um: generalize os_rcv_fd 2024-07-03 12:24:25 +02:00
port_user.c um: port_user: Improve error handling when port-helper is not found 2022-03-11 10:55:55 +01:00
port.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
pty.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
random.c um: Rewrite the sigio workaround based on epoll and tgkill 2025-03-20 09:28:44 +01:00
rtc_kern.c um: rtc: use RTC time when calculating the alarm 2025-01-10 13:50:00 +01:00
rtc_user.c um: Rewrite the sigio workaround based on epoll and tgkill 2025-03-20 09:28:44 +01:00
rtc.h um: add a pseudo RTC 2021-02-12 21:38:52 +01:00
ssl.c um: Do not initialise statics to 0. 2022-09-19 23:10:07 +02:00
stderr_console.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stdio_console.c um: Do not initialise statics to 0. 2022-09-19 23:10:07 +02:00
stdio_console.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
tty.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
ubd_kern.c um: ubd: Switch to the pthread-based helper 2025-03-20 09:26:38 +01:00
ubd_user.c um: ubd: Add missing error check in start_io_thread() 2025-06-25 09:25:49 +02:00
ubd.h um: ubd: Switch to the pthread-based helper 2025-03-20 09:26:38 +01:00
vector_kern.c um: vector: Reduce stack usage in vector_eth_configure() 2025-06-25 09:28:17 +02:00
vector_kern.h um: vector: Replace locks guarding queue depth with atomics 2024-09-12 19:56:05 +02:00
vector_transports.c um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00
vector_user.c vector_user: add VDE support 2024-09-12 20:16:42 +02:00
vector_user.h uml: vector: Remove unused definitions VECTOR_{WRITE,HEADERS} 2023-02-13 10:14:32 +01:00
vfio_kern.c um: vfio: Prevent duplicate device assignments 2025-06-25 09:26:06 +02:00
vfio_user.c um: Add VFIO-based virtual PCI driver 2025-05-05 10:25:24 +02:00
vfio_user.h um: Add VFIO-based virtual PCI driver 2025-05-05 10:25:24 +02:00
vhost_user.h um: virtio_uml: query the number of vqs if supported 2024-11-07 18:05:07 +01:00
virt-pci.c irqdomain: um: use irq_domain_create_linear() helper 2025-05-05 10:25:38 +02:00
virt-pci.h um: virt-pci: Refactor virtio_pcidev into its own module 2025-03-18 11:06:54 +01:00
virtio_pcidev.c um: virt-pci: Refactor virtio_pcidev into its own module 2025-03-18 11:06:54 +01:00
virtio_uml.c um: virtio_uml: use raw spinlock 2025-02-12 23:40:55 +01:00
xterm_kern.c um: generalize os_rcv_fd 2024-07-03 12:24:25 +02:00
xterm.c um: xterm: Update options for gnome-terminal 2025-05-05 10:21:15 +02:00
xterm.h um: Add SPDX headers for files in arch/um/drivers 2019-09-15 21:37:16 +02:00