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| author | Vincent Stehlé <vincent.stehle@laposte.net> | 2014-04-04 08:43:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-16 14:13:26 -0700 |
| commit | 53974e06603977f348ed978d75c426b0532daa67 (patch) | |
| tree | 5d2d050ed41379e6c42c63980b4e552be3620581 | |
| parent | 06d96c0ff77f20dbf5fc93c8cfa9a2a9690fd67e (diff) | |
| download | lwn-53974e06603977f348ed978d75c426b0532daa67.tar.gz lwn-53974e06603977f348ed978d75c426b0532daa67.zip | |
topology: Fix compilation warning when not in SMP
The topology_##name() macro does not use its argument when CONFIG_SMP is not
set, as it ultimately calls the cpu_data() macro.
So we avoid maintaining a possibly unused `cpu' variable, to avoid the
following compilation warning:
drivers/base/topology.c: In function ‘show_physical_package_id’:
drivers/base/topology.c:103:118: warning: unused variable ‘cpu’ [-Wunused-variable]
define_id_show_func(physical_package_id);
drivers/base/topology.c: In function ‘show_core_id’:
drivers/base/topology.c:106:106: warning: unused variable ‘cpu’ [-Wunused-variable]
define_id_show_func(core_id);
This can be seen with e.g. x86 defconfig and CONFIG_SMP not set.
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org> # 3.10.x
Cc: <stable@vger.kernel.org> # 3.13.x
Cc: <stable@vger.kernel.org> # 3.14.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/base/topology.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/base/topology.c b/drivers/base/topology.c index bbcbd3c43926..be7c1fb7c0c9 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -39,8 +39,7 @@ static ssize_t show_##name(struct device *dev, \ struct device_attribute *attr, char *buf) \ { \ - unsigned int cpu = dev->id; \ - return sprintf(buf, "%d\n", topology_##name(cpu)); \ + return sprintf(buf, "%d\n", topology_##name(dev->id)); \ } #if defined(topology_thread_cpumask) || defined(topology_core_cpumask) || \ |