uevent: use add_uevent_var() instead of open coding it
Make use of add_uevent_var() instead of (often incorrectly) open coding it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
committed by
Greg Kroah-Hartman
parent
bdc4960a0b
commit
bf62456eb9
@@ -412,31 +412,25 @@ static int netdev_uevent(struct device *d, char **envp,
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int num_envp, char *buf, int size)
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{
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struct net_device *dev = to_net_dev(d);
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int i = 0;
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int n;
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int retval, len = 0, i = 0;
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/* pass interface to uevent. */
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envp[i++] = buf;
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n = snprintf(buf, size, "INTERFACE=%s", dev->name) + 1;
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buf += n;
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size -= n;
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if ((size <= 0) || (i >= num_envp))
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return -ENOMEM;
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retval = add_uevent_var(envp, num_envp, &i,
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buf, size, &len,
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"INTERFACE=%s", dev->name);
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if (retval)
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goto exit;
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/* pass ifindex to uevent.
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* ifindex is useful as it won't change (interface name may change)
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* and is what RtNetlink uses natively. */
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envp[i++] = buf;
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n = snprintf(buf, size, "IFINDEX=%d", dev->ifindex) + 1;
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buf += n;
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size -= n;
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if ((size <= 0) || (i >= num_envp))
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return -ENOMEM;
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retval = add_uevent_var(envp, num_envp, &i,
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buf, size, &len,
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"IFINDEX=%d", dev->ifindex);
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exit:
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envp[i] = NULL;
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return 0;
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return retval;
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}
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#endif
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