From: chixiaobo <xiaobo.chi@nokia.com>
To: dev@dpdk.org
Cc: chixiaobo <xiaobo.chi@nokia.com>
Subject: [dpdk-dev] [PATCH] set eventfd_link_misc.minor=MISC_DYNAMIC_MINOR
Date: Tue, 4 Aug 2015 17:30:51 +0800 [thread overview]
Message-ID: <1438680651-19940-1-git-send-email-xiaobo.chi@nokia.com> (raw)
For miscdevices, the major device_no is same, so the minor device_no should be set to ditinguish different misc devices; if not set the minor, it may fail while insmod due to the default minor value, 0, has been used by other miscdevice. MISC_DYNAMIC_MINOR means to let Linux kernel dynamically assign one minor devide number while loading.
Signed-off-by: chixiaobo <xiaobo.chi@nokia.com>
---
lib/librte_vhost/eventfd_link/eventfd_link.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/librte_vhost/eventfd_link/eventfd_link.c b/lib/librte_vhost/eventfd_link/eventfd_link.c
index 62c45c8..b023cdf 100644
--- a/lib/librte_vhost/eventfd_link/eventfd_link.c
+++ b/lib/librte_vhost/eventfd_link/eventfd_link.c
@@ -169,6 +169,7 @@ static const struct file_operations eventfd_link_fops = {
static struct miscdevice eventfd_link_misc = {
+ .minor = MISC_DYNAMIC_MINOR,
.name = "eventfd-link",
.fops = &eventfd_link_fops,
};
--
1.9.4.msysgit.2
next reply other threads:[~2015-08-04 9:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-04 9:30 chixiaobo [this message]
2015-08-04 9:31 chixiaobo
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