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

From: Mukesh Ojha
Date: Wed Dec 21 2022 - 00:47:15 EST


Hi,

On 12/20/2022 6:20 PM, 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 ? 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



Looks like my email client did not honour new line
put by me in rephrased text. Sorry for that.

Please run checkpatch.pl before sending the patch.

-Mukesh

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);