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selftests/rseq: x86-32: use %gs segment selector for accessing rseq thread area
Mathieu Desnoyers authored 
commit 127b6429

 upstream.

Rather than use rseq_get_abi() and pass its result through a register to
the inline assembler, directly access the per-thread rseq area through a
memory reference combining the %gs segment selector, the constant offset
of the field in struct rseq, and the rseq_offset value (in a register).
Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220124171253.22072-16-mathieu.desnoyers@efficios.com

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
dc282528
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Documentation iio: adc: vf610: fix conversion mode sysfs node name
LICENSES LICENSES: Rename other to deprecated
arch s390: remove unneeded 'select BUILD_BIN2C'
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certs certs/blacklist_hashes.c: fix const confusion in certs blacklist
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous
drivers net: dsa: bcm_sf2: force pause link settings
fs afs: Fix dynamic root getattr
include linux/dim: Fix divide by 0 in RDMA DIM
init random: handle latent entropy and command line from random_init()
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
kernel kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add]
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scripts modpost: fix section mismatch check for exported init/exit sections
security efi: Do not import certificates from UEFI Secure Boot for T2 Macs
sound ALSA: hda/realtek: Add quirk for Clevo PD70PNT
tools selftests/rseq: x86-32: use %gs segment selector for accessing rseq thread area
usr initramfs: restore default compression behavior
virt KVM: Prevent module exit until all VMs are freed
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