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drivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for memdup_user

Started bykbuild test robot <fengguang.wu@intel.com>
First post2016-08-11 07:50 +0200
Last post2016-08-11 07:50 +0200
Articles 2 — 1 participant

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  drivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for  memdup_user kbuild test robot <fengguang.wu@intel.com> - 2016-08-11 07:50 +0200
    [PATCH] rapidio: fix memdup_user.cocci warnings kbuild test robot <fengguang.wu@intel.com> - 2016-08-11 07:50 +0200

#1460186 — drivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for memdup_user

Fromkbuild test robot <fengguang.wu@intel.com>
Date2016-08-11 07:50 +0200
Subjectdrivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for memdup_user
Message-ID<s4R2p-7bt-5@gated-at.bofh.it>
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   85e97be32c6242c98dbbc7a241b4a78c1b93327b
commit: b6e8d4aa1110306378af0f3472a6b85a1f039a16 rapidio: add RapidIO channelized messaging driver
date:   8 days ago


coccinelle warnings: (new ones prefixed by >>)

>> drivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for memdup_user

Please review and possibly fold the followup patch.

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1460187 — [PATCH] rapidio: fix memdup_user.cocci warnings

Fromkbuild test robot <fengguang.wu@intel.com>
Date2016-08-11 07:50 +0200
Subject[PATCH] rapidio: fix memdup_user.cocci warnings
Message-ID<s4R2p-7bt-9@gated-at.bofh.it>
In reply to#1460186
drivers/rapidio/rio_cm.c:1849:7-14: WARNING opportunity for memdup_user

 Use memdup_user rather than duplicating its implementation
 This is a little bit restricted to reduce false positives

Generated by: scripts/coccinelle/api/memdup_user.cocci

CC: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

 0 files changed

rule starting on line 17: position variables or mixed modifs interfere with comm_assoc isobool (
(

(
(unknown *to == NULL)
  >>> IS_ERR(rule starting on line 17:to)

|
!unknown *to
  >>> IS_ERR(rule starting on line 17:to)

)
|
(unknown *NULL == unknown *to)
  >>> IS_ERR(rule starting on line 17:to)

) || ...)

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