He Zhe b193014373 hpet: Support 32-bit userspace ... commit 4e60131d0d upstream. hpet_compat_ioctl and read file operations failed to handle parameters from 32-bit userspace and thus samples/timers/hpet_example.c fails as below. root@intel-x86-64:~# ./hpet_example-32.out poll /dev/hpet 1 2 -hpet: executing poll hpet_poll: HPET_IRQFREQ failed This patch fixes cmd and arg handling in hpet_compat_ioctl and adds compat handling for 32-bit userspace in hpet_read. hpet_example now shows that it works for both 64-bit and 32-bit. root@intel-x86-64:~# ./hpet_example-32.out poll /dev/hpet 1 2 -hpet: executing poll hpet_poll: info.hi_flags 0x0 hpet_poll: expired time = 0xf4298 hpet_poll: revents = 0x1 hpet_poll: data 0x1 hpet_poll: expired time = 0xf4235 hpet_poll: revents = 0x1 hpet_poll: data 0x1 root@intel-x86-64:~# ./hpet_example-64.out poll /dev/hpet 1 2 -hpet: executing poll hpet_poll: info.hi_flags 0x0 hpet_poll: expired time = 0xf42a1 hpet_poll: revents = 0x1 hpet_poll: data 0x1 hpet_poll: expired time = 0xf4232 hpet_poll: revents = 0x1 hpet_poll: data 0x1 Cc: stable@vger.kernel.org Signed-off-by: He Zhe <zhe.he@windriver.com> Fixes: 54066a57c5 ("hpet: kill BKL, add compat_ioctl") Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20240606123908.738733-1-zhe.he@windriver.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-07-18 13:18:39 +02:00
..
agp	parisc: sba: Fix compile warning wrt list of SBA devices	2023-10-06 14:56:51 +02:00
hw_random	hwrng: core - Fix page fault dead lock on mmap-ed hwrng	2024-01-31 16:16:58 -08:00
ipmi	ipmi_si: fix a memleak in try_smi_init()	2023-09-13 09:43:00 +02:00
mwave
pcmcia	Revert "char: pcmcia: cm4000_cs: Replace mdelay with usleep_range in set_protocol"	2023-03-10 09:33:32 +01:00
tpm	timers: Get rid of del_singleshot_timer_sync()	2024-05-17 11:56:12 +02:00
xilinx_hwicap
xillybus
adi.c
apm-emulation.c
applicom.c	applicom: Fix PCI device refcount leak in applicom_init()	2023-03-10 09:33:32 +01:00
applicom.h
bsr.c
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c	hpet: Support 32-bit userspace	2024-07-18 13:18:39 +02:00
Kconfig
lp.c
Makefile
mem.c	random: restore O_NONBLOCK support	2022-09-23 12:27:57 +02:00
misc.c
mspec.c
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c	ppdev: Add an error check in register_device	2024-06-12 11:03:40 +02:00
ps3flash.c
random.c	random: handle creditable entropy from atomic process context	2024-04-27 17:07:04 +02:00
scx200_gpio.c
sonypi.c
tlclk.c
toshiba.c
ttyprintk.c
uv_mmtimer.c
virtio_console.c