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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/hid/bpf/Kconfig | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/hid/bpf/Kconfig')
| -rw-r--r-- | drivers/hid/bpf/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/hid/bpf/Kconfig b/drivers/hid/bpf/Kconfig new file mode 100644 index 000000000..d65482e02 --- /dev/null +++ b/drivers/hid/bpf/Kconfig @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "HID-BPF support" + +config HID_BPF + bool "HID-BPF support" + depends on BPF_JIT + depends on BPF_SYSCALL + depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS + help + This option allows to support eBPF programs on the HID subsystem. + eBPF programs can fix HID devices in a lighter way than a full + kernel patch and allow a lot more flexibility. + + For documentation, see Documentation/hid/hid-bpf.rst + +endmenu |