linux-kernel - Re: [PATCH v1 8/8] ACPI: Use recently introduced uuid_le_cmp

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Message-ID: <7721821.2dV0yqi2RQ@aspire.rjw.lan>
Date:   Fri, 21 Apr 2017 23:22:31 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        alsa-devel@...a-project.org, linux-input@...r.kernel.org,
        kvm@...r.kernel.org, devel@...uxdriverproject.org,
        linux-efi@...r.kernel.org, linux-acpi@...r.kernel.org,
        Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH v1 8/8] ACPI: Use recently introduced uuid_le_cmp_p{p}() helpers

On Friday, April 21, 2017 05:46:45 PM Andy Shevchenko wrote:
> Recently introduced helpers take pointers to uuid_{be|le} instead of
> reference.
> 
> Using them makes code less ugly.
> 
> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/acpi/acpi_extlog.c | 2 +-
>  drivers/acpi/apei/ghes.c   | 8 ++++----
>  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
> index 502ea4dc2080..45e299aefda7 100644
> --- a/drivers/acpi/acpi_extlog.c
> +++ b/drivers/acpi/acpi_extlog.c
> @@ -169,7 +169,7 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
>  	if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
>  		fru_text = gdata->fru_text;
>  	sec_type = (uuid_le *)gdata->section_type;
> -	if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
> +	if (!uuid_le_cmp_p(sec_type, CPER_SEC_PLATFORM_MEM)) {
>  		struct cper_sec_mem_err *mem = (void *)(gdata + 1);
>  		if (gdata->error_data_length >= sizeof(*mem))
>  			trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,

ACK for this one.

> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
> index d0855c09f32f..f2a7ee26d45f 100644
> --- a/drivers/acpi/apei/ghes.c
> +++ b/drivers/acpi/apei/ghes.c
> @@ -431,12 +431,13 @@ static void ghes_do_proc(struct ghes *ghes,
>  {
>  	int sev, sec_sev;
>  	struct acpi_hest_generic_data *gdata;
> +	uuid_le *sec_type;
>  
>  	sev = ghes_severity(estatus->error_severity);
>  	apei_estatus_for_each_section(estatus, gdata) {
> +		sec_type = (uuid_le *)gdata->section_type;
>  		sec_sev = ghes_severity(gdata->error_severity);
> -		if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
> -				 CPER_SEC_PLATFORM_MEM)) {
> +		if (!uuid_le_cmp_p(sec_type, CPER_SEC_PLATFORM_MEM)) {
>  			struct cper_sec_mem_err *mem_err;
>  			mem_err = (struct cper_sec_mem_err *)(gdata+1);
>  			ghes_edac_report_mem_error(ghes, sev, mem_err);
> @@ -445,8 +446,7 @@ static void ghes_do_proc(struct ghes *ghes,
>  			ghes_handle_memory_failure(gdata, sev);
>  		}
>  #ifdef CONFIG_ACPI_APEI_PCIEAER
> -		else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
> -				      CPER_SEC_PCIE)) {
> +		else if (!uuid_le_cmp_p(sec_type, CPER_SEC_PCIE)) {
>  			struct cper_sec_pcie *pcie_err;
>  			pcie_err = (struct cper_sec_pcie *)(gdata+1);
>  			if (sev == GHES_SEV_RECOVERABLE &&
> 

But this one is for Boris.

Thanks,
Rafael