Martin KaFai Lau a12f15d1f8 bpf: Remove prog->active check for bpf_lsm and bpf_iter ... [ Upstream commit 271de525e1 ] The commit 64696c40d0 ("bpf: Add __bpf_prog_{enter,exit}_struct_ops for struct_ops trampoline") removed prog->active check for struct_ops prog. The bpf_lsm and bpf_iter is also using trampoline. Like struct_ops, the bpf_lsm and bpf_iter have fixed hooks for the prog to attach. The kernel does not call the same hook in a recursive way. This patch also removes the prog->active check for bpf_lsm and bpf_iter. A later patch has a test to reproduce the recursion issue for a sleepable bpf_lsm program. This patch appends the '_recur' naming to the existing enter and exit functions that track the prog->active counter. New __bpf_prog_{enter,exit}[_sleepable] function are added to skip the prog->active tracking. The '_struct_ops' version is also removed. It also moves the decision on picking the enter and exit function to the new bpf_trampoline_{enter,exit}(). It returns the '_recur' ones for all tracing progs to use. For bpf_lsm, bpf_iter, struct_ops (no prog->active tracking after 64696c40d0), and bpf_lsm_cgroup (no prog->active tracking after 69fd337a97), it will return the functions that don't track the prog->active. Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20221025184524.3526117-2-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org> Stable-dep-of: 7645629f7d ("bpf: Invoke __bpf_prog_exit_sleepable_recur() on recursion in kern_sys_bpf().") Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-09-19 12:28:03 +02:00
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acpi	ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep()	2023-06-28 11:12:22 +02:00
asm-generic	word-at-a-time: use the same return type for has_zero regardless of endianness	2023-08-11 12:08:11 +02:00
clocksource
crypto	crypto: api - Use work queue in crypto_destroy_instance	2023-09-13 09:42:32 +02:00
drm	drm/display/dp: Fix the DP DSC Receiver cap size	2023-08-30 16:11:09 +02:00
dt-bindings	dt-bindings: clock: qcom,gcc-sc8280xp: Add missing GDSCs	2023-09-13 09:42:45 +02:00
keys
kunit
kvm	KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption	2023-08-23 17:52:28 +02:00
linux	bpf: Remove prog->active check for bpf_lsm and bpf_iter	2023-09-19 12:28:03 +02:00
math-emu
media	media: cec: core: add adap_unconfigured() callback	2023-09-13 09:42:54 +02:00
memory
misc
net	ip_tunnels: use DEV_STATS_INC()	2023-09-19 12:28:03 +02:00
pcmcia
ras
rdma	RDMA/cma: Always set static rate to 0 for RoCE	2023-06-21 16:00:59 +02:00
rv
scsi	scsi: core: Use 32-bit hostnum in scsi_host_lookup()	2023-09-13 09:42:56 +02:00
soc	net: mscc: ocelot: don't keep PTP configuration of all ports in single structure	2023-07-19 16:22:01 +02:00
sound	ASoC: Intel: avs: Account for UID of ACPI device	2023-06-21 16:00:53 +02:00
target
trace	jbd2: remove journal_clean_one_cp_list()	2023-08-30 16:10:58 +02:00
uapi	dma-buf/sync_file: Fix docs syntax	2023-09-13 09:42:53 +02:00
ufs
vdso
video
xen