From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 789222236E3 for ; Fri, 16 Jan 2026 04:01:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768536110; cv=none; b=Mbt7Dh++R0jrFpgVpH30Q5hRqbeGfN8MdeLtYqsSg/22eH881mADdb+8CfXZutZTfI8FiJVyLmnBbF9/oxuF4Avf3Of2fqrIMK6Mf6qFhBgki63+bzxabqn83vxiwBWpKCTAtL3KH28cxHsdbtO97zTKs1D340Qal0mRnytHw/I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768536110; c=relaxed/simple; bh=uZBgAtYN/5PhqrDKBXoGnq7io0Sap1WOrMBEMPSkGQ0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=iWnuSytRe45L33YzvptSwiirfCTecLEXzvEYudBXOvqDGpC2gshPNGoYT35h3cvTl0jw5qH+W3FLfd++6Oh3XtaK+YETf3l0ZRGdbz1hjIRonlhoC+A7k+H4YkqcsLVfL5+t3W3F55nq7xjZt3SrgUxolLgn7uRtx+4Ow7SGzm8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=gjtGWWEk; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gjtGWWEk" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-2a0d67f1877so10660255ad.2 for ; Thu, 15 Jan 2026 20:01:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768536109; x=1769140909; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=C86zd54vw882bVunEsQWKwXhhGbXp5/JxHhwv+/DDJk=; b=gjtGWWEk1veHeLFxFI0ucQRza4PiHJIrQ7p3SlUUMrFPZX/Iko7Y3q3cOY2huu3Va5 TRdNCGZ2KIXsg3RzVqXPt2/m9CWdbOMo1zw2gbzo24mgV19VCY1zR+rbIVeR7UqcZQD/ bPyK73UeOt9GBRnJI8JnFvHnCb7LUc09BGrMhMooZlNE/prb5BqgYGvYP9/E65fffVqD hMVPoPCW1CP/sE9y91w4oDKDJFK9KVLZRaMQzRlGvU8MLt6jyeHrbdfr0q4olo6RDix0 XVc8cbh188uBxFbg3K5LtjUXQCmcO5kqtqPelB3GP73Tjrog95pCSWFWGiD593IYHpdJ piuQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768536109; x=1769140909; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=C86zd54vw882bVunEsQWKwXhhGbXp5/JxHhwv+/DDJk=; b=bawxvWXd33o9amOYl2VZS6KjKI7nIsPIAsfcvaHHSpXWDBgVLpElrjdyuP4r3pOllM uEHR85fTKnR4s6SXg5xcVa3yj3fzT1Vo1dbBAwd4+J9zc7hM45RApL/Aibm3cmS9d7Sb 5uCk8ag4mq7Ycf7vzYxSs+xJfHr3hMp2lA+LxJ3JY8Kvqy9f6rsC9z76Uatuu+2rGiZu 315NeluRNNF5HZlh0WvNbVlA098aiAUPaJXbKJuDJUTTcObtJD+P2V7vRziVTDKPcCOH UaZAdf8Et9G48FOlBP2eHGWErYYFTmzkXiTtD3+Mh4hA9g4AARkMfoR8BYT7fQ8BfGOR AQkA== X-Forwarded-Encrypted: i=1; AJvYcCVK0Yt5sd2bPrDqtHgEYRJpdFZ+QWOp62BFR+iUX5sHu/TGQPfM51EAxJUN4o2gy+uN2xKgt0kzglh4LIU=@vger.kernel.org X-Gm-Message-State: AOJu0YwdtzizQFQD8lAL9DXSKpQgQ4qRu/MA0rlTOjVmmYTEBaFEvGL7 JrYZa8ij7Zq6URZl3naiLgXYjHKqf8rnIYXgfcLpr4p4bHH+dME+qOIY X-Gm-Gg: AY/fxX6tHaCKRVLzh4M8B9iCyGY7TwdBUuftGDF9Z6qqLbrUgG4DZCNeW+sgIVa1iT/ tjpCVPqKXjybfYqBnecm9s7BasXpdTIOrBSkbrheSPVKP1qXcv9Cd4vpAAMBg01VS8fxNevVVgF e43++9sbt1tlqu3pszqEsO3IG8mVgWAaHSHykn3FFeK/ZDtrKK6qw63sqnQ0Z07dVFH5AsIPcQZ lHDVhJ4qTk4BJjEy9xvja86Sb80ATmYrvC13G6r0QwTOPbhDq5pbpeVba1e6kO0fw1SfT0XSojV GFcurxQvzvwpWhB35dMZuHJv0SiAKLPpo2eM9kt7Zd8lR3ZmK8aZi60dMD4VGXjC0fRNZvDWw+j Z1ANH4CRFKu36Ollsi6zEpdK0Sg/OXY6UZ0oalUafrsd77QbEbi9R7Zogq6U4SNsz1Y9EeGC9eo l0gzD9kbZJHz/cZ8/U3SSbuGkP3frUz7jZsdnt+5zXgwKHoD5EIpkSKf8iFg== X-Received: by 2002:a17:902:d58a:b0:2a3:e70d:5817 with SMTP id d9443c01a7336-2a718669f9fmr14217665ad.0.1768536108747; Thu, 15 Jan 2026 20:01:48 -0800 (PST) Received: from localhost.localdomain ([2409:40e3:6d:a9d5:311f:975:de12:2e9e]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a719412d37sm6944085ad.87.2026.01.15.20.01.46 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 15 Jan 2026 20:01:48 -0800 (PST) From: Chaitanya Mishra To: Eddie James Cc: Ninad Palsule , linux-fsi@lists.ozlabs.org, linux-kernel@vger.kernel.org, Chaitanya Mishra Subject: [PATCH v1 0/1] fsi: cfam: clamp chunk length to remaining count Date: Fri, 16 Jan 2026 09:31:39 +0530 Message-ID: <20260116040140.65394-1-chaitanyamishra.ai@gmail.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This series fixes cfam read/write chunk sizing to respect the remaining count, preventing over-copy past the user buffer when the request is not 4-byte aligned. Testing: - AWS EC2 t3.large, Ubuntu 22.04 (jammy) - defconfig + OF + FSI, W=1 build of drivers/fsi/fsi-core.o Commands: make defconfig scripts/config -e OF scripts/config -e FSI make olddefconfig make -j$(nproc) W=1 drivers/fsi/fsi-core.o Log (tail): UPD include/generated/timeconst.h CC kernel/bounds.s CHKSHA1 include/linux/atomic/atomic-arch-fallback.h CHKSHA1 include/linux/atomic/atomic-instrumented.h CHKSHA1 include/linux/atomic/atomic-long.h UPD include/generated/bounds.h CC arch/x86/kernel/asm-offsets.s UPD include/generated/asm-offsets.h CC kernel/sched/rq-offsets.s CC /home/ubuntu/linux/tools/objtool/builtin-check.o UPD include/generated/rq-offsets.h CALL scripts/checksyscalls.sh CC /home/ubuntu/linux/tools/objtool/elf.o CC /home/ubuntu/linux/tools/objtool/objtool.o CC /home/ubuntu/linux/tools/objtool/orc_gen.o CC /home/ubuntu/linux/tools/objtool/orc_dump.o CC /home/ubuntu/linux/tools/objtool/libstring.o CC /home/ubuntu/linux/tools/objtool/libctype.o CC /home/ubuntu/linux/tools/objtool/str_error_r.o CC /home/ubuntu/linux/tools/objtool/librbtree.o CC /home/ubuntu/linux/tools/objtool/signal.o LD /home/ubuntu/linux/tools/objtool/objtool-in.o LINK /home/ubuntu/linux/tools/objtool/objtool CC drivers/fsi/fsi-core.o Chaitanya Mishra (1): fsi: cfam: clamp chunk length to remaining count drivers/fsi/fsi-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) -- 2.50.1 (Apple Git-155)