diff options
| author | Sudeep Holla <sudeep.holla@arm.com> | 2014-09-30 15:48:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-07 20:45:00 +0100 |
| commit | 5aaba36318e5995e8c95d077a46d9a4d00fcc1cd (patch) | |
| tree | edf9eb1ea758b82f1f04963a0fc54fab8bc8bc50 /drivers/base/cpu.c | |
| parent | driver core: Fix unbalanced device reference in drivers_probe (diff) | |
| download | linux-5aaba36318e5995e8c95d077a46d9a4d00fcc1cd.tar.xz linux-5aaba36318e5995e8c95d077a46d9a4d00fcc1cd.zip | |
cpumask: factor out show_cpumap into separate helper function
Many sysfs *_show function use cpu{list,mask}_scnprintf to copy cpumap
to the buffer aligned to PAGE_SIZE, append '\n' and '\0' to return null
terminated buffer with newline.
This patch creates a new helper function cpumap_print_to_pagebuf in
cpumask.h using newly added bitmap_print_to_pagebuf and consolidates
most of those sysfs functions using the new helper function.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: x86@kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/cpu.c')
| -rw-r--r-- | drivers/base/cpu.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 006b1bc5297d..4d8a56406fbb 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -207,11 +207,8 @@ static ssize_t show_cpus_attr(struct device *dev, char *buf) { struct cpu_attr *ca = container_of(attr, struct cpu_attr, attr); - int n = cpulist_scnprintf(buf, PAGE_SIZE-2, *(ca->map)); - buf[n++] = '\n'; - buf[n] = '\0'; - return n; + return cpumap_print_to_pagebuf(true, buf, *ca->map); } #define _CPU_ATTR(name, map) \ |