Commit c6ca3198 authored Oct 10, 2024 by Martin Kelly Committed by Alexei Starovoitov Oct 10, 2024

bpf: Update bpf_override_return() comment



The documentation says CONFIG_FUNCTION_ERROR_INJECTION is supported only
on x86. This was presumably true at the time of writing, but it's now
supported on many other architectures too. Drop this statement, since
it's not correct anymore and it fits better in other documentation
anyway.

Signed-off-by: Martin Kelly <martin.kelly@crowdstrike.com>
Link: https://lore.kernel.org/r/20241010193301.995909-1-martin.kelly@crowdstrike.com


Signed-off-by: Alexei Starovoitov <ast@kernel.org>

parent 5bd48a3a

include/uapi/linux/bpf.h

+0 −4

Original line number	Diff line number	Diff line
		@@ -3103,10 +3103,6 @@ union bpf_attr {
		* with the CONFIG_BPF_KPROBE_OVERRIDE configuration
		* option, and in this case it only works on functions tagged with
		* ALLOW_ERROR_INJECTION in the kernel code.
		*
		* Also, the helper is only available for the architectures having
		* the CONFIG_FUNCTION_ERROR_INJECTION option. As of this writing,
		* x86 architecture is the only one to support this feature.
		* Return
		* 0
		*

tools/include/uapi/linux/bpf.h

+0 −4

Original line number	Diff line number	Diff line
		@@ -3103,10 +3103,6 @@ union bpf_attr {
		* with the CONFIG_BPF_KPROBE_OVERRIDE configuration
		* option, and in this case it only works on functions tagged with
		* ALLOW_ERROR_INJECTION in the kernel code.
		*
		* Also, the helper is only available for the architectures having
		* the CONFIG_FUNCTION_ERROR_INJECTION option. As of this writing,
		* x86 architecture is the only one to support this feature.
		* Return
		* 0
		*