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Shutemov" Cc: linux-kernel@vger.kernel.org, x86@kernel.org, Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov References: <1563283040-31101-1-git-send-email-zhenzhong.duan@oracle.com> <20190717143451.xbz6dkjnmxd7rcon@black.fi.intel.com> From: Zhenzhong Duan Organization: Oracle Corporation Message-ID: Date: Thu, 18 Jul 2019 16:13:49 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190717143451.xbz6dkjnmxd7rcon@black.fi.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9321 signatures=668688 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907180095 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9321 signatures=668688 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907180095 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019/7/17 22:34, Kirill A. Shutemov wrote: > On Tue, Jul 16, 2019 at 01:17:20PM +0000, Zhenzhong Duan wrote: >> Fix gcc warning: >> >> arch/x86/boot/compressed/pgtable_64.c: In function 'find_trampoline_placement': >> arch/x86/boot/compressed/pgtable_64.c:43:16: warning: unused variable 'trampoline_start' [-Wunused-variable] >> unsigned long trampoline_start; >> ^ >> >> Signed-off-by: Zhenzhong Duan >> Cc: Kirill A. Shutemov >> Cc: Peter Zijlstra >> Cc: Thomas Gleixner >> Cc: Ingo Molnar >> Cc: Borislav Petkov > Acked-by: Kirill A. Shutemov > > Have no idea why I don't see the warning in my setup. Try below: make bzImage EXTRA_CFLAGS="-Wunused-variable" Zhenzhong