Alexander Lobakin b97687527b asm-generic: fix __get_unaligned_be48() on 32 bit platforms ... While testing the new macros for working with 48 bit containers, I faced a weird problem: 32 + 16: 0x2ef6e8da 0x79e60000 48: 0xffffe8da + 0x79e60000 All the bits starting from the 32nd were getting 1d in 9/10 cases. The debug showed: p[0]: 0x00002e0000000000 p[1]: 0x00002ef600000000 p[2]: 0xffffffffe8000000 p[3]: 0xffffffffe8da0000 p[4]: 0xffffffffe8da7900 p[5]: 0xffffffffe8da79e6 that the value becomes a garbage after the third OR, i.e. on `p[2] << 24`. When the 31st bit is 1 and there's no explicit cast to an unsigned, it's being considered as a signed int and getting sign-extended on OR, so `e8000000` becomes `ffffffffe8000000` and messes up the result. Cast the @p[2] to u64 as well to avoid this. Now: 32 + 16: 0x7ef6a490 0xddc10000 48: 0x7ef6a490 + 0xddc10000 p[0]: 0x00007e0000000000 p[1]: 0x00007ef600000000 p[2]: 0x00007ef6a4000000 p[3]: 0x00007ef6a4900000 p[4]: 0x00007ef6a490dd00 p[5]: 0x00007ef6a490ddc1 Fixes: c2ea5fcf53 ("asm-generic: introduce be48 unaligned accessors") Signed-off-by: Alexander Lobakin <alobakin@pm.me> Link: https://lore.kernel.org/r/20220412215220.75677-1-alobakin@pm.me Signed-off-by: Jens Axboe <axboe@kernel.dk>		2022-04-12 16:31:38 -06:00
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acpi
asm-generic	asm-generic: fix __get_unaligned_be48() on 32 bit platforms	2022-04-12 16:31:38 -06:00
clocksource
crypto
drm
dt-bindings	RTC for 5.18	2022-04-01 09:37:18 -07:00
keys
kunit
kvm
linux	block: move lower_48_bits() to block	2022-04-11 19:18:27 -06:00
math-emu
media
memory
misc
net	Networking changes for 5.18.	2022-03-24 13:13:26 -07:00
pcmcia
ras	mm/memory-failure.c: fix race with changing page compound again	2022-03-22 15:57:07 -07:00
rdma
scsi	SCSI misc on 20220324	2022-03-24 19:37:53 -07:00
soc	drm for 5.18-rc1	2022-03-24 16:19:43 -07:00
sound	sound fixes for 5.18-rc1	2022-04-01 10:32:46 -07:00
target
trace	Updates to Tracing:	2022-04-03 12:26:01 -07:00
uapi	tracing: mark user_events as BROKEN	2022-04-02 10:32:14 -07:00
vdso
video
xen