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From: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
To: Athira Rajeev <atrajeev@linux.ibm.com>,
	acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com,
	irogers@google.com, namhyung@kernel.org
Cc: linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	maddy@linux.ibm.com, kjain@linux.ibm.com,
	disgoel@linux.vnet.ibm.com, hbathini@linux.vnet.ibm.com,
	Aditya.Bodkhe1@ibm.com, Tejas.Manhas1@ibm.com
Subject: Re: [PATCH 2/2] tools/perf/powerpc: Use return code from disasm_line__parse
Date: Wed, 5 Mar 2025 17:22:20 +0530	[thread overview]
Message-ID: <569fed73-20f7-4f54-bcdd-67fa9357aa1d@linux.ibm.com> (raw)
In-Reply-To: <20250304154114.62093-2-atrajeev@linux.ibm.com>

I was able to reproduce the issue without this patch.

Applied this patch on next-20250227 kernel and tested the patch and 
issue is fixed.

Please add below tag.

Tested-By: Venkat Rao Bagalkote <venkat88@linux.ibm.com>

On 04/03/25 9:11 pm, Athira Rajeev wrote:
> In disasm_line__parse_powerpc() , return code from function
> disasm_line__parse() is ignored. This will result in bad results
> if the disasm_line__parse fails to disasm the line. Use
> the return code to fix this.
>
> Signed-off-by: Athira Rajeev <atrajeev@linux.ibm.com>
> ---
>   tools/perf/util/disasm.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
> index a53e8c4e5bca..8f0eb56c6fc6 100644
> --- a/tools/perf/util/disasm.c
> +++ b/tools/perf/util/disasm.c
> @@ -976,6 +976,7 @@ static int disasm_line__parse_powerpc(struct disasm_line *dl, struct annotate_ar
>   	char *tmp_raw_insn, *name_raw_insn = skip_spaces(line);
>   	char *name = skip_spaces(name_raw_insn + RAW_BYTES);
>   	int disasm = 0;
> +	int ret = 0;
>   
>   	if (args->options->disassembler_used)
>   		disasm = 1;
> @@ -984,7 +985,7 @@ static int disasm_line__parse_powerpc(struct disasm_line *dl, struct annotate_ar
>   		return -1;
>   
>   	if (disasm)
> -		disasm_line__parse(name, namep, rawp);
> +		ret = disasm_line__parse(name, namep, rawp);
>   	else
>   		*namep = "";
>   
> @@ -998,7 +999,7 @@ static int disasm_line__parse_powerpc(struct disasm_line *dl, struct annotate_ar
>   	if (disasm)
>   		dl->raw.raw_insn = be32_to_cpu(dl->raw.raw_insn);
>   
> -	return 0;
> +	return ret;
>   }
>   
>   static void annotation_line__init(struct annotation_line *al,


  reply	other threads:[~2025-03-05 11:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-04 15:41 [PATCH 1/2] tools/perf: Add field to annotation options to determine disassembler used Athira Rajeev
2025-03-04 15:41 ` [PATCH 2/2] tools/perf/powerpc: Use return code from disasm_line__parse Athira Rajeev
2025-03-05 11:52   ` Venkat Rao Bagalkote [this message]
2025-03-05 11:57 ` [PATCH 1/2] tools/perf: Add field to annotation options to determine disassembler used Venkat Rao Bagalkote
2025-03-07 18:09 ` Namhyung Kim

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