From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-acpi@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <lenb@kernel.org>
Subject: [PATCH v1 4/7] ACPI: sysfs: Refactor param_get_trace_state() to drop dead code
Date: Wed, 16 Jun 2021 20:03:35 +0300 [thread overview]
Message-ID: <20210616170338.23057-4-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20210616170338.23057-1-andriy.shevchenko@linux.intel.com>
The param_get_trace_state() has a few dead code issues:
- 'return 0;' is never reachable
- a few 'else' keywords are redundant
Refactor param_get_trace_state() to drop dead code.
Note, leave one 'else' in order to have the best readability.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/acpi/sysfs.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index efb8c2dfa9cb..7239d87e78e6 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -255,16 +255,12 @@ static int param_get_trace_state(char *buffer, const struct kernel_param *kp)
{
if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED))
return sprintf(buffer, "disable\n");
- else {
- if (acpi_gbl_trace_method_name) {
- if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT)
- return sprintf(buffer, "method-once\n");
- else
- return sprintf(buffer, "method\n");
- } else
- return sprintf(buffer, "enable\n");
- }
- return 0;
+ if (!acpi_gbl_trace_method_name)
+ return sprintf(buffer, "enable\n");
+ if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT)
+ return sprintf(buffer, "method-once\n");
+ else
+ return sprintf(buffer, "method\n");
}
module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
--
2.30.2
next prev parent reply other threads:[~2021-06-16 17:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-16 17:03 [PATCH v1 1/7] ACPI: sysfs: Make sparse happy about address space in use Andy Shevchenko
2021-06-16 17:03 ` [PATCH v1 2/7] ACPI: sysfs: Allow bitmap list to be supplied to acpi_mask_gpe Andy Shevchenko
2021-06-16 17:03 ` [PATCH v1 3/7] ACPI: sysfs: Unify pattern of memory allocations Andy Shevchenko
2021-06-16 17:03 ` Andy Shevchenko [this message]
2021-06-16 17:03 ` [PATCH v1 5/7] ACPI: sysfs: Use __ATTR_RO() and __ATTR_RW() macros Andy Shevchenko
2021-06-16 17:03 ` [PATCH v1 6/7] ACPI: sysfs: Remove tailing return statement in void functions Andy Shevchenko
2021-06-16 17:03 ` [PATCH v1 7/7] ACPI: sysfs: Sort headers alphabetically Andy Shevchenko
2021-06-17 15:46 ` [PATCH v1 1/7] ACPI: sysfs: Make sparse happy about address space in use Rafael J. Wysocki
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