From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Oct 2013 12:08:35 +0000 (+0200)
Subject: s390/appldata: make copy_from_user() invocations provably correct
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~58^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57f47ba0cb74303230a373d27238a0aaa0df3775;p=pandora-kernel.git

s390/appldata: make copy_from_user() invocations provably correct

Just change the type of "len" to unsigned int so the compiler can prove
that we don't have a buffer overflow (and generates less code).
We get rid of these:

In function 'copy_from_user',
    inlined from 'appldata_interval_handler' at
    arch/s390/appldata/appldata_base.c:265:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct
In function 'copy_from_user',
    inlined from 'appldata_timer_handler' at
    arch/s390/appldata/appldata_base.c:225:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct
In function 'copy_from_user',
    inlined from 'appldata_generic_handler' at
    arch/s390/appldata/appldata_base.c:333:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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