Re: [PATCH v10 04/21] acpi/ghes: simplify acpi_ghes_record_errors() code

Igor Mammedov
2024-09-17T09:28:35Z

On Sat, 14 Sep 2024 08:13:25 +0200
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> wrote:

> if physical_address is not defined, just return with an error
> set.

no need to mention that, as it's what does now.

>
> That reduces the ident of the function and prepares it for
> the next changes.
>
> No functional changes.

this is enough to describe the change.

> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Reviewed-by: Igor Mammedov <imammedo@redhat.com>

> ---
> hw/acpi/ghes.c | 56 ++++++++++++++++++++++++++------------------------
> 1 file changed, 29 insertions(+), 27 deletions(-)
>
> diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
> index 35f793401d06..17b7d9e10f3e 100644
> --- a/hw/acpi/ghes.c
> +++ b/hw/acpi/ghes.c
> @@ -417,40 +417,42 @@ int acpi_ghes_record_errors(uint8_t source_id, uint64_t physical_address)
>
> start_addr = le64_to_cpu(ags->ghes_addr_le);
>
> - if (physical_address) {
> + if (!physical_address) {
> + return -1;
> + }
>
> - if (source_id < ACPI_GHES_ERROR_SOURCE_COUNT) {
> - start_addr += source_id * sizeof(uint64_t);
> - }
> + if (source_id < ACPI_GHES_ERROR_SOURCE_COUNT) {
> + start_addr += source_id * sizeof(uint64_t);
> + }
>
> - cpu_physical_memory_read(start_addr, &error_block_addr,
> - sizeof(error_block_addr));
> + cpu_physical_memory_read(start_addr, &error_block_addr,
> + sizeof(error_block_addr));
>
> - error_block_addr = le64_to_cpu(error_block_addr);
> + error_block_addr = le64_to_cpu(error_block_addr);
>
> - read_ack_register_addr = start_addr +
> - ACPI_GHES_ERROR_SOURCE_COUNT * sizeof(uint64_t);
> + read_ack_register_addr = start_addr +
> + ACPI_GHES_ERROR_SOURCE_COUNT * sizeof(uint64_t);
>
> - cpu_physical_memory_read(read_ack_register_addr,
> - &read_ack_register, sizeof(read_ack_register));
> + cpu_physical_memory_read(read_ack_register_addr,
> + &read_ack_register, sizeof(read_ack_register));
>
> - /* zero means OSPM does not acknowledge the error */
> - if (!read_ack_register) {
> - error_report("OSPM does not acknowledge previous error,"
> - " so can not record CPER for current error anymore");
> - } else if (error_block_addr) {
> - read_ack_register = cpu_to_le64(0);
> - /*
> - * Clear the Read Ack Register, OSPM will write it to 1 when
> - * it acknowledges this error.
> - */
> - cpu_physical_memory_write(read_ack_register_addr,
> - &read_ack_register, sizeof(uint64_t));
> + /* zero means OSPM does not acknowledge the error */
> + if (!read_ack_register) {
> + error_report("OSPM does not acknowledge previous error,"
> + " so can not record CPER for current error anymore");
> + } else if (error_block_addr) {
> + read_ack_register = cpu_to_le64(0);
> + /*
> + * Clear the Read Ack Register, OSPM will write it to 1 when
> + * it acknowledges this error.
> + */
> + cpu_physical_memory_write(read_ack_register_addr,
> + &read_ack_register, sizeof(uint64_t));
>
> - ret = acpi_ghes_record_mem_error(error_block_addr,
> - physical_address);
> - } else
> - error_report("can not find Generic Error Status Block");
> + ret = acpi_ghes_record_mem_error(error_block_addr,
> + physical_address);
> + } else {
> + error_report("can not find Generic Error Status Block");
> }
>
> return ret;