Sebastian Siewior wrote:
* David Miller | 2007-10-10 16:25:28 [-0700]:

From: Sebastian Siewior <[EMAIL PROTECTED]>
Date: Wed, 10 Oct 2007 21:53:37 +0200

* Oliver Hartkopp | 2007-10-10 19:53:53 [+0200]:

CC [M] crypto/authenc.o
crypto/authenc.c: In function ?crypto_authenc_hash?:
crypto/authenc.c:88: warning: ?cryptlen? may be used uninitialized in this function crypto/authenc.c:87: warning: ?dst? may be used uninitialized in this function
crypto/authenc.c: In function ?crypto_authenc_decrypt?:
crypto/authenc.c:163: warning: ?cryptlen? may be used uninitialized in this function
crypto/authenc.c:163: note: ?cryptlen? was declared here
crypto/authenc.c:162: warning: ?src? may be used uninitialized in this function
crypto/authenc.c:162: note: ?src? was declared here

do you already know these warnings?
Those warnings are looking like a compiler bug to me.
To be honest I don't know of any compiler which commits enough
flow variable analysis to support doing %100 accurate warnings
in situations like this.

gcc (GCC) 4.1.2 (Gentoo 4.1.2) did not produce any warnings in this
case.


Hi Sebasian,

my gcc was the lastest Debian unstable one:

gcc -v

Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr --enable-targets=all --disable-werror --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.2.1 (Debian 4.2.1-5)

Regards,
Oliver


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