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Thu, 28 Jan 2021 10:41:51 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.85.68.86]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 28 Jan 2021 10:41:51 +0000 (GMT) From: Ganesh Goudar To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au Subject: [PATCH v5 1/2] powerpc/mce: Reduce the size of event arrays Date: Thu, 28 Jan 2021 16:11:42 +0530 Message-Id: <20210128104143.70668-1-ganeshgr@linux.ibm.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2021-01-28_05:2021-01-27, 2021-01-28 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 bulkscore=0 adultscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101280050 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ganesh Goudar , mahesh@linux.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Maximum recursive depth of MCE is 4, Considering the maximum depth allowed reduce the size of event to 10 from 100. This saves us ~19kB of memory and has no fatal consequences. Signed-off-by: Ganesh Goudar --- v4: This patch is a fragment of the orignal patch which is split into two. v5: No changes. --- arch/powerpc/include/asm/mce.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/mce.h b/arch/powerpc/include/asm/mce.h index e6c27ae843dc..7d8b6679ec68 100644 --- a/arch/powerpc/include/asm/mce.h +++ b/arch/powerpc/include/asm/mce.h @@ -204,7 +204,7 @@ struct mce_error_info { bool ignore_event; }; -#define MAX_MC_EVT 100 +#define MAX_MC_EVT 10 /* Release flags for get_mce_event() */ #define MCE_EVENT_RELEASE true -- 2.26.2