From nobody Fri Dec 26 09:19:13 2025 Received: from out162-62-57-210.mail.qq.com (out162-62-57-210.mail.qq.com [162.62.57.210]) (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 706FE111BC for ; Sun, 7 Jan 2024 04:30:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="xIgRREzT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1704601838; bh=IJGKj9mfA5WhofwmTYCnpKSFdiMXh3Sw5ca58b3wD1E=; h=From:To:Cc:Subject:Date; b=xIgRREzTJDXucRuHWurufWRSbHaaEuzKK54GLbrnvk+dHuBaytqYJsQBUINQFQXb0 mO9pVSrGqH9GxS1I4CdZj3Htotr6ETOZ+A8223OZVMXBbvfv5dTOJ3tQsoAIS1ArXy FVGPILibNAKpGLicJCzoN2Q2acQCp7KC103SS8Zg= Received: from HPPC.. ([2409:8a28:c9b:6ef0:9265:b624:43f3:c76f]) by newxmesmtplogicsvrszb9-1.qq.com (NewEsmtp) with SMTP id 60E93E27; Sun, 07 Jan 2024 12:24:14 +0800 X-QQ-mid: xmsmtpt1704601454tbnnxegdp Message-ID: X-QQ-XMAILINFO: MyIXMys/8kCtP+89TQtWJ5Yf27A2P5X2kTLccbrUFtAfVUf8iYHVJSOLSk97Lz zXHPc1BzuluGHrHq8H1eUiisPOnGO9XcJP4KwmHKYpbRqyMpawuJupmX44QzHpR/tEKDIG4IvGHO rQA65PuRQd13/vWoQcHyCrLCujU3QF6xG1wG1hhsNHL11Zf/YhtLoqhVxKNwIV5Ye+dGkObhDE1m vwrT9cJ3aNeGdUo/mcq0vUvi56LeKmdMJCoZBgKFvXHIZLvM1qBRcdEFm8irKQmEYU4fNTs97tny GSQkgRMaZQfIHUBAooAY03fn+dpaHnNtQVd8YJWFhFemslbzju79rCI6klBAg14T6syQFjRhv5YD 3fd+0zv87YACUDYxr9EX6bULUuvcw9miNLPBY5y3EwsSjv+PvHMotKyy6cTybo19sqPaceYtZGL+ wQNAw+C1zrM/usq3T7aD+Tu4D0keGTt/YDVk/x21Tqrb5+lun1iUEge44l3J3EAm5jngXOl2xWWj UCLfdyLgx0LX62TcQtF55wnaRB7fgCU8AByRegm2yvyRmZ5LZKO85b/AaqPQfemhN78fKKTusKU5 Lm4px0I+KKfpodsyGfypkCp5YNo+7jTplOeF5AW/kykNDuwCmq9bDJrp6h9rCQVRNcZtu7Q0hbi2 4G4odty8yTYiZdjcih1kPYQ3OLJYLK6pvNLRvRM4j33AX3OJf08E1eghbV8ZpErrAEKKs7KIP5vU +OSj30rkIPC+8QtOiB3x7SdQfBeA3bSmim4uKNZMdUY0SHO1Cq4fFKub7LpGvwo7Mdb+h+PJjqRr fhqdHVum4/y8VAS0M5A+GRgk/xNetMI18HNjdamxiu2CTEVAr1jxAqVeZBwM5sZRVJK+i94xG395 RgoMkSUom68sUiWgZn+TBoIAsdtv6UlwbPHWP2vKznAR1Gs70EJNvVgGLh++3Uk+kh1eZTCgcKCv 81cywi/VZ+4dMmudSq6uc9p0aNQhqFdcAWfqYoSEibJ/QU+P6PSf9Mb4rMJEIz6ScEHgB3xc2pWo EVZtE8n7fXhaox0eoqxCnUQNdA0IV7nqUgZdmQVNBD2jidAhMbsKEc2AL7mDIC45OZk7ecAA7rDR Ez7GgV X-QQ-XMRINFO: M/715EihBoGSf6IYSX1iLFg= From: Yukai Wu To: Dave Hansen , Andy Lutomirski , Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Yukai Wu Subject: [PATCH] x86/mm: Remove unnecessary casts in init_64.c Date: Sun, 7 Jan 2024 12:24:14 +0800 X-OQ-MSGID: <20240107042414.13348-1-wuyukai0403@qq.com> X-Mailer: git-send-email 2.34.1 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 Content-Type: text/plain; charset="utf-8" Some pointers in init_64.c do not need to cast the type. Signed-off-by: Yukai Wu --- arch/x86/mm/init_64.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a190aae8c..f5bbac54b 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -150,7 +150,7 @@ static void sync_global_pgds_l5(unsigned long start, un= signed long end) pgd_t *pgd; spinlock_t *pgt_lock; =20 - pgd =3D (pgd_t *)page_address(page) + pgd_index(addr); + pgd =3D page_address(page) + pgd_index(addr); /* the pgt_lock only for Xen */ pgt_lock =3D &pgd_page_get_mm(page)->page_table_lock; spin_lock(pgt_lock); @@ -192,7 +192,7 @@ static void sync_global_pgds_l4(unsigned long start, un= signed long end) p4d_t *p4d; spinlock_t *pgt_lock; =20 - pgd =3D (pgd_t *)page_address(page) + pgd_index(addr); + pgd =3D page_address(page) + pgd_index(addr); p4d =3D p4d_offset(pgd, addr); /* the pgt_lock only for Xen */ pgt_lock =3D &pgd_page_get_mm(page)->page_table_lock; @@ -249,7 +249,7 @@ static __ref void *spp_getpage(void) static p4d_t *fill_p4d(pgd_t *pgd, unsigned long vaddr) { if (pgd_none(*pgd)) { - p4d_t *p4d =3D (p4d_t *)spp_getpage(); + p4d_t *p4d =3D spp_getpage(); pgd_populate(&init_mm, pgd, p4d); if (p4d !=3D p4d_offset(pgd, 0)) printk(KERN_ERR "PAGETABLE BUG #00! %p <-> %p\n", @@ -261,7 +261,7 @@ static p4d_t *fill_p4d(pgd_t *pgd, unsigned long vaddr) static pud_t *fill_pud(p4d_t *p4d, unsigned long vaddr) { if (p4d_none(*p4d)) { - pud_t *pud =3D (pud_t *)spp_getpage(); + pud_t *pud =3D spp_getpage(); p4d_populate(&init_mm, p4d, pud); if (pud !=3D pud_offset(p4d, 0)) printk(KERN_ERR "PAGETABLE BUG #01! %p <-> %p\n", @@ -273,7 +273,7 @@ static pud_t *fill_pud(p4d_t *p4d, unsigned long vaddr) static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr) { if (pud_none(*pud)) { - pmd_t *pmd =3D (pmd_t *) spp_getpage(); + pmd_t *pmd =3D spp_getpage(); pud_populate(&init_mm, pud, pmd); if (pmd !=3D pmd_offset(pud, 0)) printk(KERN_ERR "PAGETABLE BUG #02! %p <-> %p\n", @@ -285,7 +285,7 @@ static pmd_t *fill_pmd(pud_t *pud, unsigned long vaddr) static pte_t *fill_pte(pmd_t *pmd, unsigned long vaddr) { if (pmd_none(*pmd)) { - pte_t *pte =3D (pte_t *) spp_getpage(); + pte_t *pte =3D spp_getpage(); pmd_populate_kernel(&init_mm, pmd, pte); if (pte !=3D pte_offset_kernel(pmd, 0)) printk(KERN_ERR "PAGETABLE BUG #03!\n"); @@ -378,19 +378,19 @@ static void __init __init_extra_mapping(unsigned long= phys, unsigned long size, for (; size; phys +=3D PMD_SIZE, size -=3D PMD_SIZE) { pgd =3D pgd_offset_k((unsigned long)__va(phys)); if (pgd_none(*pgd)) { - p4d =3D (p4d_t *) spp_getpage(); + p4d =3D spp_getpage(); set_pgd(pgd, __pgd(__pa(p4d) | _KERNPG_TABLE | _PAGE_USER)); } p4d =3D p4d_offset(pgd, (unsigned long)__va(phys)); if (p4d_none(*p4d)) { - pud =3D (pud_t *) spp_getpage(); + pud =3D spp_getpage(); set_p4d(p4d, __p4d(__pa(pud) | _KERNPG_TABLE | _PAGE_USER)); } pud =3D pud_offset(p4d, (unsigned long)__va(phys)); if (pud_none(*pud)) { - pmd =3D (pmd_t *) spp_getpage(); + pmd =3D spp_getpage(); set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER)); } --=20 2.34.1