From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: [PATCH 4/6] cpufreq: Add a get_current_driver helper Date: Sun, 20 Jan 2013 11:24:28 +0100 Message-ID: <1358677470-17394-5-git-send-email-bp@alien8.de> References: <1358677470-17394-1-git-send-email-bp@alien8.de> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alien8.de; s=alien8; t=1358677478; bh=me3f32f7rAyVqJhIa/r4vgalAckXFv5PAxAoNQ6bZAI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=TK2I NjqW6z9j2lYwYM2bcCPof82+VOS9gr+93lDkVoV4gBKSW0yqo0DLK18L3iujs38txgy 4g3TWaJukEDOex4aDRIEICuIjyoYvPRmV0VQvX9YhyICGpV8/dKQmfaRTi1lKNxT9v9 0k7BuSuKTUIXB6UQkCBXu5TbMsXbA8Uxk= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alien8.de; s=alien8; t=1358677477; bh=me3f32f7rAyVqJhIa/r4vgalAckXFv5PAxAoNQ6bZAI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=E9nY wM4fSHyLsnhkw+HvzpIO3SqB0tB1KlpWriH4dVP80vAZeC0IcEJjdfs3xztT6u/fhVi tlRzayh/5NuhlrRF5YIYNcd9RtcPJrBD+wBTJ8l/dZDjuQW4F4gY02X/6B6YhyBZvGD afCQf/3Y+ENj7ERsxR4P7nlwXPEXOW43w= In-Reply-To: <1358677470-17394-1-git-send-email-bp@alien8.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Rafael J. Wysocki" Cc: =?UTF-8?q?Andr=C3=A9=20Przywara?= , Leonid Isaev , Tom Gundersen , cpufreq@vger.kernel.org, linux-acpi@vger.kernel.org, LKML , Borislav Petkov From: Borislav Petkov Add a helper function to return cpufreq_driver->name. Signed-off-by: Borislav Petkov --- drivers/cpufreq/cpufreq.c | 14 ++++++++++++++ include/linux/cpufreq.h | 1 + 2 files changed, 15 insertions(+) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1f93dbd72355..6ed3c1377caf 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = { .resume = cpufreq_bp_resume, }; +/** + * cpufreq_get_current_driver - return current driver's name + * + * Return the name string of the currently loaded cpufreq driver + * or NULL, if none. + */ +const char *cpufreq_get_current_driver(void) +{ + if (cpufreq_driver) + return cpufreq_driver->name; + + return NULL; +} +EXPORT_SYMBOL_GPL(cpufreq_get_current_driver); /********************************************************************* * NOTIFIER LISTS INTERFACE * diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index a55b88eaf96a..a018da2d2a7c 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); void cpufreq_frequency_table_put_attr(unsigned int cpu); +extern const char *cpufreq_get_current_driver(void); #endif /* _LINUX_CPUFREQ_H */ -- 1.8.1.rc3