Re: [PATCH v3 1/2] remoteproc: elf_loader: Update resource table name check

[Philippe Mathieu-Daudé]

On 20/12/22 13:50, Mukesh Ojha wrote:
> Hi,
>
> On 12/20/2022 1:31 PM, Srinivasa Rao Mandadapu wrote:
> > Update the way of checking resource table name with prefix
> > substring search instead of complete string search.
> > In general Qualcomm DSP binary is prepared by combining different ELFs',
> > hence section header name (e.g. .resource_table), appended with ELF name
> > to differentiate with same section(e.g. resource_table.ac_bin_process) of
> > different ELFs'.
> > Example readelf output of DSP binary:
> >      [60] .start.ac_bin_process PROGBITS
> >      [61] .resource_table.ac_bin_process PROGBITS
> >      [62] .comment.ac_bin_process PROGBITS
>
> Could we rephrase above like below ?

FWIW I agree :) I assumed Srinivasa was using a broken email client
that strips newlines and packs everything.

> It could be also taken why applying 
> the patch.
>
> Update the way of checking resource table name with prefix substring 
> search instead of complete string search.
>
> In general, Qualcomm DSP binary is prepared by combining different 
> ELF's. Hence, section header name (e.g. .resource_table), appended
> with ELF name to differentiate with same section(e.g. 
> resource_table.ac_bin_process) of different ELFs'.
>
> Example readelf output of DSP binary:
>        [60] .start.ac_bin_process PROGBITS
>        [61] .resource_table.ac_bin_process PROGBITS
>        [62] .comment.ac_bin_process PROGBITS
>
>
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
>
> Otherwise, LGTM.
> Reviewed-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx>
>
> -Mukesh
> > ---
> >   drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/remoteproc/remoteproc_elf_loader.c 
> > b/drivers/remoteproc/remoteproc_elf_loader.c
> > index 5a412d7..77330d6 100644
> > --- a/drivers/remoteproc/remoteproc_elf_loader.c
> > +++ b/drivers/remoteproc/remoteproc_elf_loader.c
> > @@ -272,7 +272,7 @@ find_table(struct device *dev, const struct 
> > firmware *fw)
> >           u64 offset = elf_shdr_get_sh_offset(class, shdr);
> >           u32 name = elf_shdr_get_sh_name(class, shdr);
> > -        if (strcmp(name_table + name, ".resource_table"))
> > +        if (!strstarts(name_table + name, ".resource_table"))
> >               continue;
> >           table = (struct resource_table *)(elf_data + offset);