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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /arch/arm/lib/csumpartialcopyuser.S
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
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coccinelle: alloc_cast: drop removed allocatorsgrafted
- 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 <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'arch/arm/lib/csumpartialcopyuser.S')
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diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
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+/* 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 <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/errno.h>
+#include <asm/asm-offsets.h>
+
+ .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