From nobody Sat Apr 4 01:36:53 2026 Received: from smtpbgeu2.qq.com (smtpbgeu2.qq.com [18.194.254.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9041236AB61; Sat, 21 Mar 2026 10:59:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.194.254.142 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774090785; cv=none; b=DV4SFLU6ZnM7pzjSqdLN+RGgQP7D4ROMQpujqwa+ZWWCYEwQ+4RakGyOjTwACjNZOf9F9OyY0kRRLgSxOsQGDr9sAiiXa0U7CFCd/oNDR+YH2Cra7DDDxzVv+IxhzsgxgZcGIp1L/4gpWm3cEQ3ut7xCKQvYVvwmlN6M/6POE3I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774090785; c=relaxed/simple; bh=KuJ0qSKVDTO5kYDsu9BNj5ITynbKA5w2OweBy2N+yDI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=pXhQTyhoXZzeWDh6F5nFoqycGx9z6QuU/0bNKpQBXgZ0FaIfRrFh2CkwZpSK3bLjvim2qHJeZ6Cap1pdUpBC6eeMIH7vzi3Aq27HfsHOjwP9kSeVer/uBvdWRZ2fG+cIXj/nEdSfL8EycqtXy3b3lWQpFJcJTd/Zk7KJ7igufTA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=smail.nju.edu.cn; spf=pass smtp.mailfrom=smail.nju.edu.cn; dkim=pass (1024-bit key) header.d=smail.nju.edu.cn header.i=@smail.nju.edu.cn header.b=OALECA7o; arc=none smtp.client-ip=18.194.254.142 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=smail.nju.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=smail.nju.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=smail.nju.edu.cn header.i=@smail.nju.edu.cn header.b="OALECA7o" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=smail.nju.edu.cn; s=iohv2404; t=1774090779; bh=TGfbWQuBf+vWZHfxVms8yIOv1i8spMOYrGQg7u8kioA=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=OALECA7ofe2Kbj/0nOSLmlPIYsS2fyLrj7n7dhGeYDVGfVi4HiEXuaJiXAb78rs14 99PUsoownmZAqBOT3tl1uwEO3gC4w8kRqaU2nNglrFcx7Hdw2rDVhgqdKfLwbDs4sk MlqkDnBytlBFhKfEFxXz2l4wdHLXRn9yf0wUTYBA= X-QQ-mid: esmtpsz19t1774090778t9d25d4be X-QQ-Originating-IP: FexrMMAhYqSmz/B2XHuN1JNlgu7NYzLuN8chFMQUiFU= Received: from localhost.localdomain ( [116.172.93.199]) by bizesmtp.qq.com (ESMTP) with id ; Sat, 21 Mar 2026 18:59:35 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 2378410286923065694 EX-QQ-RecipientCnt: 13 From: Kexin Sun To: davem@davemloft.net, andreas@gaisler.com, akpm@linux-foundation.org, rppt@kernel.org, kevin.brodsky@arm.com, agordeev@linux.ibm.com, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org Cc: julia.lawall@inria.fr, xutong.ma@inria.fr, kexinsun@smail.nju.edu.cn, yunbolyu@smu.edu.sg, ratnadiraw@smu.edu.sg Subject: [PATCH] sparc32: remove deadwood swift_flush_tlb_page() debug code Date: Sat, 21 Mar 2026 18:59:35 +0800 Message-Id: <20260321105935.8068-1-kexinsun@smail.nju.edu.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:smail.nju.edu.cn:qybglogicsvrgz:qybglogicsvrgz5b-0 X-QQ-XMAILINFO: MWgnKUIRcMzUi2wsckyWJzHW9p2iPyAXKe8nebHiWpvtoigjq5Bzt7TP toVkcktkWxgV0J7HoQTo0PyF4ulAfzx6H7X6jUx1iyHTpETH34AuhfNHzdbZpBSUVYp114E hIe4dEisXFv7LKyhnmekLTfb7ODBWNLnGf442if24Yt/kRJI9YkxGx6KaZmHjzyhGHiFIg9 ibiCztmj/NgtYx4PXSeFX6US1pVHpkzyNTo54UL3pxDCpCquGUOklE7P/hRJkncc2shrJUe vq2s/O1Cn22FB7uZ2DUvZKtYvXoFqJpRHm9sQlXOQD/OBZp0DJd/EhDEiAG/JtBNXYIRZa3 iBSkJxYfzeYPmW9qyKdHBLoanz1//liojfQiwi4QmvFXj/3Aidqd1i/MbmG3LnGDAL83L12 zQkQwcoPXORPaxcX1ze0JbRWKgpkV9O63f7V7MIRKpI2lMtbio1tqRoq076V5zCs7sagx4K WFLr0ezQQvdNBrGIu/GCMDcgL2aHwXHbCycehx8x2Iw/2JFDS0peFB3PFFkWHdvV3/Xmjfq okLZEdgXqqWWwvNy3jfhn2VEuArEBHCCPAr6fwqFv6jPmsCftxB0/95QJ00e6lrtcZemf1C nv1CEILJbUSn9uhjjT17YL37JTpwp13yuNmU3kluQupgltx0jUgjOUoNom/fEro1w86D2Cy IHpqlu303m57/s+m83Hd1qhd7owsu8PPDZCYudMQLjq0Pc0hLWnBfRf8x+hA0fJdECBnmtL 0QIVxmG8R+TFSnbM2Dw4Sw9wSXIsFChB+2e84rasTgUmrld7mwDXgjFpIu4+MynKTR0jP0P Ovtdknxz+bpWZ4WXEFB6n1s3IETYKGSJMhDiSN4LLFFnjpzTqIxxnQbM1MEHkkUNrGGcIqf MEbcdCMPeS9j/SLiMPg3d1L9dgTzd3i20jZ4ksECAJ80TwtIeH8ruf9Bt/5Vb8zL1WA/W3U Yd12GocbPA9S2oAOX+IyLgDSlKStBMbJRRpQoDNp8KEFtlVcTDP1gwk0HYpd3F/0auoGut6 bLOWl2WKZzL6a4idWTFXouUgFEcQltm68olybEXyfkStazz4CUvhUa13lbSd42EwOoeeaqx 5/x6Uda71fW X-QQ-XMRINFO: Mp0Kj//9VHAxzExpfF+O8yhSrljjwrznVg== X-QQ-RECHKSPAM: 0 Content-Type: text/plain; charset="utf-8" Remove an #if 0 block that has been dead since at least Linux 2.6.12. The block was marked "P3: deadwood to debug precise flushes on Swift" and contained a never-compiled alternative implementation of swift_flush_tlb_page(). It also referenced the since-removed srmmu_flush_tlb_page(), dropped in commit 3d5f7d37c8b4 ("sparc32: drop unused functions in pgtsrmmu.h"). Assisted-by: unnamed:deepseek-v3.2 coccinelle Signed-off-by: Kexin Sun --- arch/sparc/mm/srmmu.c | 29 ----------------------------- 1 file changed, 29 deletions(-) diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 1b24c5e8d73d..9a74902ad181 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -581,35 +581,6 @@ extern void swift_flush_tlb_range(struct vm_area_struc= t *vma, unsigned long start, unsigned long end); extern void swift_flush_tlb_page(struct vm_area_struct *vma, unsigned long= page); =20 -#if 0 /* P3: deadwood to debug precise flushes on Swift. */ -void swift_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - int cctx, ctx1; - - page &=3D PAGE_MASK; - if ((ctx1 =3D vma->vm_mm->context) !=3D -1) { - cctx =3D srmmu_get_context(); -/* Is context # ever different from current context? P3 */ - if (cctx !=3D ctx1) { - printk("flush ctx %02x curr %02x\n", ctx1, cctx); - srmmu_set_context(ctx1); - swift_flush_page(page); - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (page), "i" (ASI_M_FLUSH_PROBE)); - srmmu_set_context(cctx); - } else { - /* Rm. prot. bits from virt. c. */ - /* swift_flush_cache_all(); */ - /* swift_flush_cache_page(vma, page); */ - swift_flush_page(page); - - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (page), "i" (ASI_M_FLUSH_PROBE)); - /* same as above: srmmu_flush_tlb_page() */ - } - } -} -#endif =20 /* * The following are all MBUS based SRMMU modules, and therefore could --=20 2.25.1