From 2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c Mon Sep 17 00:00:00 2001 From: Sang-Heon Jeon Date: Mon, 24 Aug 2026 01:18:14 +0900 Subject: coccinelle: alloc_cast: drop removed allocators - pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon Signed-off-by: Julia Lawall --- arch/arm/lib/csumpartialcopyuser.S | 101 +++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 arch/arm/lib/csumpartialcopyuser.S (limited to 'arch/arm/lib/csumpartialcopyuser.S') diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S new file mode 100644 index 000000000..c289bde04 --- /dev/null +++ b/arch/arm/lib/csumpartialcopyuser.S @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/arch/arm/lib/csumpartialcopyuser.S + * + * Copyright (C) 1995-1998 Russell King + * + * 27/03/03 Ian Molton Clean up CONFIG_CPU + */ +#include +#include +#include +#include + + .text + +#if defined(CONFIG_CPU_SW_DOMAIN_PAN) + + .macro save_regs + mrc p15, 0, ip, c3, c0, 0 + stmfd sp!, {r1, r2, r4 - r8, ip, lr} + uaccess_enable ip + .endm + + .macro load_regs + ldmfd sp!, {r1, r2, r4 - r8, ip, lr} + mcr p15, 0, ip, c3, c0, 0 + ret lr + .endm + +#elif defined(CONFIG_CPU_TTBR0_PAN) + + .macro save_regs + mrc p15, 0, ip, c2, c0, 2 @ read TTBCR + stmfd sp!, {r1, r2, r4 - r8, ip, lr} + uaccess_enable ip + .endm + + .macro load_regs + ldmfd sp!, {r1, r2, r4 - r8, ip, lr} + mcr p15, 0, ip, c2, c0, 2 @ restore TTBCR + ret lr + .endm + +#else + + .macro save_regs + stmfd sp!, {r1, r2, r4 - r8, lr} + .endm + + .macro load_regs + ldmfd sp!, {r1, r2, r4 - r8, pc} + .endm + +#endif + + .macro load1b, reg1 + ldrusr \reg1, r0, 1 + .endm + + .macro load2b, reg1, reg2 + ldrusr \reg1, r0, 1 + ldrusr \reg2, r0, 1 + .endm + + .macro load1l, reg1 + ldrusr \reg1, r0, 4 + .endm + + .macro load2l, reg1, reg2 + ldrusr \reg1, r0, 4 + ldrusr \reg2, r0, 4 + .endm + + .macro load4l, reg1, reg2, reg3, reg4 + ldrusr \reg1, r0, 4 + ldrusr \reg2, r0, 4 + ldrusr \reg3, r0, 4 + ldrusr \reg4, r0, 4 + .endm + +/* + * unsigned int + * csum_partial_copy_from_user(const char *src, char *dst, int len) + * r0 = src, r1 = dst, r2 = len + * Returns : r0 = checksum or 0 + */ + +#define FN_ENTRY ENTRY(csum_partial_copy_from_user) +#define FN_EXIT ENDPROC(csum_partial_copy_from_user) + +#include "csumpartialcopygeneric.S" + +/* + * We report fault by returning 0 csum - impossible in normal case, since + * we start with 0xffffffff for initial sum. + */ + .pushsection .text.fixup,"ax" + .align 4 +9001: mov r0, #0 + load_regs + .popsection -- cgit v1.3.1