RE: [PATCH v2 bpf-next 10/16] bpf: Add bpf_btf_find_by_name_kind() helper.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



John Fastabend wrote:
> Alexei Starovoitov wrote:
> > From: Alexei Starovoitov <ast@xxxxxxxxxx>
> > 
> > Add new helper:
> > 
> > long bpf_btf_find_by_name_kind(u32 btf_fd, char *name, u32 kind, int flags)
> > 	Description
> > 		Find given name with given type in BTF pointed to by btf_fd.
> > 		If btf_fd is zero look for the name in vmlinux BTF and in module's BTFs.
> > 	Return
> > 		Returns btf_id and btf_obj_fd in lower and upper 32 bits.
> > 
> > Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
> > ---
> 
> I'm missing some high-level concept on how this would be used? Where does btf_fd come
> from and how is it used so that it doesn't break sig-check?

aha as I look through this again it seems btf_fd can be from fd_array[] and
sig-check will pan out as well as BTF can come from any valid file.

Correct? If so lgtm at high-level.



[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux