[PATCH v1 2/5] ACPI: processor: perflib: Drop redundant parentheses

Rafael J. Wysocki
2022-12-05T19:08:38Z

Drop some redundant parentheses and rearrange some checks using them
in the ACPI processor performance library code for better code clarity.

No expected functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/processor_perflib.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)

Index: linux-pm/drivers/acpi/processor_perflib.c
===================================================================
--- linux-pm.orig/drivers/acpi/processor_perflib.c
+++ linux-pm/drivers/acpi/processor_perflib.c
@@ -202,7 +202,7 @@ static int acpi_processor_get_performanc
}

pct = (union acpi_object *)buffer.pointer;
- if (!pct || (pct->type != ACPI_TYPE_PACKAGE) || (pct->package.count != 2)) {
+ if (!pct || pct->type != ACPI_TYPE_PACKAGE || pct->package.count != 2) {
pr_err("Invalid _PCT data\n");
result = -EFAULT;
goto end;
@@ -214,9 +214,8 @@ static int acpi_processor_get_performanc

obj = pct->package.elements[0];

- if ((obj.type != ACPI_TYPE_BUFFER) ||
- (obj.buffer.length < sizeof(struct acpi_pct_register)) ||
- (obj.buffer.pointer == NULL)) {
+ if (!obj.buffer.pointer || obj.type != ACPI_TYPE_BUFFER ||
+ obj.buffer.length < sizeof(struct acpi_pct_register)) {
pr_err("Invalid _PCT data (control_register)\n");
result = -EFAULT;
goto end;
@@ -230,9 +229,8 @@ static int acpi_processor_get_performanc

obj = pct->package.elements[1];

- if ((obj.type != ACPI_TYPE_BUFFER) ||
- (obj.buffer.length < sizeof(struct acpi_pct_register)) ||
- (obj.buffer.pointer == NULL)) {
+ if (!obj.buffer.pointer || obj.type != ACPI_TYPE_BUFFER ||
+ obj.buffer.length < sizeof(struct acpi_pct_register)) {
pr_err("Invalid _PCT data (status_register)\n");
result = -EFAULT;
goto end;
@@ -300,7 +298,7 @@ static int acpi_processor_get_performanc
}

pss = buffer.pointer;
- if (!pss || (pss->type != ACPI_TYPE_PACKAGE)) {
+ if (!pss || pss->type != ACPI_TYPE_PACKAGE) {
pr_err("Invalid _PSS data\n");
result = -EFAULT;
goto end;
@@ -353,7 +351,7 @@ static int acpi_processor_get_performanc
* Check that ACPI's u64 MHz will be valid as u32 KHz in cpufreq
*/
if (!px->core_frequency ||
- ((u32)(px->core_frequency * 1000) != (px->core_frequency * 1000))) {
+ (u32)(px->core_frequency * 1000) != px->core_frequency * 1000) {
pr_err(FW_BUG
"Invalid BIOS _PSS frequency found for processor %d: 0x%llx MHz\n",
pr->id, px->core_frequency);
@@ -515,7 +513,7 @@ int acpi_processor_get_psd(acpi_handle h
}

psd = buffer.pointer;
- if (!psd || (psd->type != ACPI_TYPE_PACKAGE)) {
+ if (!psd || psd->type != ACPI_TYPE_PACKAGE) {
pr_err("Invalid _PSD data\n");
result = -EFAULT;
goto end;