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Fri, 21 Jun 2024 11:37:23 +0000 (GMT) From: Ilya Leoshkevich To: Alexander Gordeev , Alexander Potapenko , Andrew Morton , Christoph Lameter , David Rientjes , Heiko Carstens , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka Cc: Christian Borntraeger , Dmitry Vyukov , Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Roman Gushchin , Sven Schnelle , Ilya Leoshkevich Subject: [PATCH v7 25/38] s390/checksum: Add a KMSAN check Date: Fri, 21 Jun 2024 13:35:09 +0200 Message-ID: <20240621113706.315500-26-iii@linux.ibm.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240621113706.315500-1-iii@linux.ibm.com> References: <20240621113706.315500-1-iii@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: XJHRyrW6gEr7POyM_gQFseah-qSadybr X-Proofpoint-ORIG-GUID: S4CNayQqicfQAiPhKJFBb26TKMLrWZr3 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-21_04,2024-06-21_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=927 spamscore=0 clxscore=1015 bulkscore=0 impostorscore=0 phishscore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2406210084 Add a KMSAN check to the CKSM inline assembly, similar to how it was done for ASAN in commit e42ac7789df6 ("s390/checksum: always use cksm instruction"). Acked-by: Alexander Gordeev Reviewed-by: Alexander Potapenko Signed-off-by: Ilya Leoshkevich --- arch/s390/include/asm/checksum.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h index b89159591ca0..46f5c9660616 100644 --- a/arch/s390/include/asm/checksum.h +++ b/arch/s390/include/asm/checksum.h @@ -13,6 +13,7 @@ #define _S390_CHECKSUM_H #include +#include #include static inline __wsum cksm(const void *buff, int len, __wsum sum) @@ -23,6 +24,7 @@ static inline __wsum cksm(const void *buff, int len, __wsum sum) }; instrument_read(buff, len); + kmsan_check_memory(buff, len); asm volatile("\n" "0: cksm %[sum],%[rp]\n" " jo 0b\n"