From: Brandon Philips <brandon@suse•de>
To: netdev@vger•kernel.org
Cc: teheo@suse•de, Brandon Philips <bphilips@suse•de>
Subject: [patch 4/5][RFC] Implement devm_kcalloc
Date: Thu, 2 Aug 2007 15:45:45 -0700 [thread overview]
Message-ID: <20070802224545.GF5181@ifup.org> (raw)
[-- Attachment #1: kcalloc-devres.patch --]
[-- Type: text/plain, Size: 1711 bytes --]
devm_kcalloc is a simple wrapper around devm_kzalloc for arrays. This is
needed because kcalloc is often used in network devices.
Signed-off-by: Brandon Philips <bphilips@suse•de>
---
drivers/base/devres.c | 16 ++++++++++++++++
include/linux/device.h | 1 +
2 files changed, 17 insertions(+)
Index: linux-2.6/drivers/base/devres.c
===================================================================
--- linux-2.6.orig/drivers/base/devres.c
+++ linux-2.6/drivers/base/devres.c
@@ -630,6 +630,22 @@ void * devm_kzalloc(struct device *dev,
EXPORT_SYMBOL_GPL(devm_kzalloc);
/**
+ * devm_kcalloc - resource-managed kcalloc
+ * @dev: Device to allocate memory for
+ * @n: number of elements.
+ * @size: element size.
+ * @flags: the type of memory to allocate.
+ */
+inline void * devm_kcalloc(struct device * dev, size_t n, size_t size,
+ gfp_t flags)
+{
+ if (n != 0 && size > ULONG_MAX / n)
+ return NULL;
+ return devm_kzalloc(dev, n * size, flags);
+}
+EXPORT_SYMBOL_GPL(devm_kcalloc);
+
+/**
* devm_kfree - Resource-managed kfree
* @dev: Device this memory belongs to
* @p: Memory to free
Index: linux-2.6/include/linux/device.h
===================================================================
--- linux-2.6.orig/include/linux/device.h
+++ linux-2.6/include/linux/device.h
@@ -402,6 +402,7 @@ extern int devres_release_group(struct d
/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+extern void *devm_kcalloc(struct device *dev, size_t n, size_t size, gfp_t flags);
extern void devm_kfree(struct device *dev, void *p);
struct device {
--
next reply other threads:[~2007-08-02 22:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-02 22:45 Brandon Philips [this message]
2007-08-03 9:20 ` [patch 4/5][RFC] Implement devm_kcalloc Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070802224545.GF5181@ifup.org \
--to=brandon@suse$(echo .)de \
--cc=bphilips@suse$(echo .)de \
--cc=netdev@vger$(echo .)kernel.org \
--cc=teheo@suse$(echo .)de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox