^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2001 Rusty Russell.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2003, 2004 Ralf Baechle (ralf@linux-mips.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2005 Thiemo Seufer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #undef DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/extable.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/moduleloader.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/elf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/numa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/jump_label.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct mips_hi16 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct mips_hi16 *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) Elf_Addr *addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) Elf_Addr value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static LIST_HEAD(dbe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static DEFINE_SPINLOCK(dbe_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #ifdef MODULE_START
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void *module_alloc(unsigned long size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) __builtin_return_address(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static int apply_r_mips_none(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int apply_r_mips_32(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) *location = base + v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static int apply_r_mips_26(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (v % 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) pr_err("module %s: dangerous R_MIPS_26 relocation\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) me->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) pr_err("module %s: relocation overflow\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) me->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) *location = (*location & ~0x03ffffff) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ((base + (v >> 2)) & 0x03ffffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int apply_r_mips_hi16(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct mips_hi16 *n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (rela) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *location = (*location & 0xffff0000) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) ((((long long) v + 0x8000LL) >> 16) & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * We cannot relocate this one now because we don't know the value of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * the carry we need to add. Save the information, and let LO16 do the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * actual relocation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) n = kmalloc(sizeof *n, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) if (!n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) n->addr = (Elf_Addr *)location;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) n->value = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) n->next = me->arch.r_mips_hi16_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) me->arch.r_mips_hi16_list = n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static void free_relocation_chain(struct mips_hi16 *l)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct mips_hi16 *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) while (l) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) next = l->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) kfree(l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) l = next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static int apply_r_mips_lo16(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) unsigned long insnlo = base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct mips_hi16 *l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) Elf_Addr val, vallo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (rela) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) *location = (*location & 0xffff0000) | (v & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* Sign extend the addend we extract from the lo insn. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (me->arch.r_mips_hi16_list != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) l = me->arch.r_mips_hi16_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) while (l != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct mips_hi16 *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) unsigned long insn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * The value for the HI16 had best be the same.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (v != l->value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) goto out_danger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * Do the HI16 relocation. Note that we actually don't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * need to know anything about the LO16 itself, except
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * where to find the low 16 bits of the addend needed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * by the LO16.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) insn = *l->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) val = ((insn & 0xffff) << 16) + vallo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) val += v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * Account for the sign extension that will happen in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * the low bits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) val = ((val >> 16) + ((val & 0x8000) != 0)) & 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) insn = (insn & ~0xffff) | val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) *l->addr = insn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) next = l->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) kfree(l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) l = next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) me->arch.r_mips_hi16_list = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * Ok, we're done with the HI16 relocs. Now deal with the LO16.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) val = v + vallo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) insnlo = (insnlo & ~0xffff) | (val & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) *location = insnlo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) out_danger:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) free_relocation_chain(l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) me->arch.r_mips_hi16_list = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) pr_err("module %s: dangerous R_MIPS_LO16 relocation\n", me->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) return -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static int apply_r_mips_pc(struct module *me, u32 *location, u32 base,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) Elf_Addr v, unsigned int bits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) unsigned long mask = GENMASK(bits - 1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) unsigned long se_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) long offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (v % 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) pr_err("module %s: dangerous R_MIPS_PC%u relocation\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) me->name, bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* retrieve & sign extend implicit addend if any */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) offset = base & mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) offset |= (offset & BIT(bits - 1)) ? ~mask : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) offset += ((long)v - (long)location) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* check the sign bit onwards are identical - ie. we didn't overflow */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) se_bits = (offset & BIT(bits - 1)) ? ~0ul : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if ((offset & ~mask) != (se_bits & ~mask)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) pr_err("module %s: relocation overflow\n", me->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) *location = (*location & ~mask) | (offset & mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) static int apply_r_mips_pc16(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return apply_r_mips_pc(me, location, base, v, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static int apply_r_mips_pc21(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return apply_r_mips_pc(me, location, base, v, 21);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static int apply_r_mips_pc26(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return apply_r_mips_pc(me, location, base, v, 26);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) static int apply_r_mips_64(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (WARN_ON(!rela))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) *(Elf_Addr *)location = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static int apply_r_mips_higher(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (WARN_ON(!rela))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) *location = (*location & 0xffff0000) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) ((((long long)v + 0x80008000LL) >> 32) & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static int apply_r_mips_highest(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) u32 base, Elf_Addr v, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if (WARN_ON(!rela))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) *location = (*location & 0xffff0000) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) ((((long long)v + 0x800080008000LL) >> 48) & 0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * reloc_handler() - Apply a particular relocation to a module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * @me: the module to apply the reloc to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * @location: the address at which the reloc is to be applied
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * @base: the existing value at location for REL-style; 0 for RELA-style
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * @v: the value of the reloc, with addend for RELA-style
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * Each implemented reloc_handler function applies a particular type of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * relocation to the module @me. Relocs that may be found in either REL or RELA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * variants can be handled by making use of the @base & @v parameters which are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * set to values which abstract the difference away from the particular reloc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * implementations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * Return: 0 upon success, else -ERRNO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) typedef int (*reloc_handler)(struct module *me, u32 *location,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) u32 base, Elf_Addr v, bool rela);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /* The handlers for known reloc types */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) static reloc_handler reloc_handlers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) [R_MIPS_NONE] = apply_r_mips_none,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) [R_MIPS_32] = apply_r_mips_32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) [R_MIPS_26] = apply_r_mips_26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) [R_MIPS_HI16] = apply_r_mips_hi16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) [R_MIPS_LO16] = apply_r_mips_lo16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) [R_MIPS_PC16] = apply_r_mips_pc16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) [R_MIPS_64] = apply_r_mips_64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) [R_MIPS_HIGHER] = apply_r_mips_higher,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) [R_MIPS_HIGHEST] = apply_r_mips_highest,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) [R_MIPS_PC21_S2] = apply_r_mips_pc21,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) [R_MIPS_PC26_S2] = apply_r_mips_pc26,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) static int __apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) unsigned int symindex, unsigned int relsec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct module *me, bool rela)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) Elf_Mips_Rel *rel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) Elf_Mips_Rela *rela;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) } r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) reloc_handler handler;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) Elf_Sym *sym;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) u32 *location, base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) unsigned int i, type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) Elf_Addr v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) size_t reloc_sz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) pr_debug("Applying relocate section %u to %u\n", relsec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) sechdrs[relsec].sh_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) r.rel = (void *)sechdrs[relsec].sh_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) reloc_sz = rela ? sizeof(*r.rela) : sizeof(*r.rel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) me->arch.r_mips_hi16_list = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) for (i = 0; i < sechdrs[relsec].sh_size / reloc_sz; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) /* This is where to make the change */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) + r.rel->r_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* This is the symbol it is referring to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) sym = (Elf_Sym *)sechdrs[symindex].sh_addr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) + ELF_MIPS_R_SYM(*r.rel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (sym->st_value >= -MAX_ERRNO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* Ignore unresolved weak symbol */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) pr_warn("%s: Unknown symbol %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) me->name, strtab + sym->st_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) err = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) type = ELF_MIPS_R_TYPE(*r.rel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (type < ARRAY_SIZE(reloc_handlers))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) handler = reloc_handlers[type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) handler = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) if (!handler) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) pr_err("%s: Unknown relocation type %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) me->name, type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (rela) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) v = sym->st_value + r.rela->r_addend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) base = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) r.rela = &r.rela[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) v = sym->st_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) base = *location;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) r.rel = &r.rel[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) err = handler(me, location, base, v, rela);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * Normally the hi16 list should be deallocated at this point. A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * malformed binary however could contain a series of R_MIPS_HI16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * relocations not followed by a R_MIPS_LO16 relocation, or if we hit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * an error processing a reloc we might have gotten here before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * reaching the R_MIPS_LO16. In either case, free up the list and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * return an error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) if (me->arch.r_mips_hi16_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) free_relocation_chain(me->arch.r_mips_hi16_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) me->arch.r_mips_hi16_list = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) err = err ?: -ENOEXEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) unsigned int symindex, unsigned int relsec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct module *me)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return __apply_relocate(sechdrs, strtab, symindex, relsec, me, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) #ifdef CONFIG_MODULES_USE_ELF_RELA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) unsigned int symindex, unsigned int relsec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct module *me)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return __apply_relocate(sechdrs, strtab, symindex, relsec, me, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) #endif /* CONFIG_MODULES_USE_ELF_RELA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) /* Given an address, look for it in the module exception tables. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) const struct exception_table_entry *search_module_dbetables(unsigned long addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) const struct exception_table_entry *e = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct mod_arch_specific *dbe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) spin_lock_irqsave(&dbe_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) list_for_each_entry(dbe, &dbe_list, dbe_list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) e = search_extable(dbe->dbe_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) dbe->dbe_end - dbe->dbe_start, addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) spin_unlock_irqrestore(&dbe_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) /* Now, if we found one, we are running inside it now, hence
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) we cannot unload the module, hence no refcnt needed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) return e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /* Put in dbe list if necessary. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) int module_finalize(const Elf_Ehdr *hdr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) const Elf_Shdr *sechdrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) struct module *me)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) const Elf_Shdr *s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) /* Make jump label nops. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) jump_label_apply_nops(me);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) INIT_LIST_HEAD(&me->arch.dbe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if (strcmp("__dbe_table", secstrings + s->sh_name) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) me->arch.dbe_start = (void *)s->sh_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) me->arch.dbe_end = (void *)s->sh_addr + s->sh_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) spin_lock_irq(&dbe_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) list_add(&me->arch.dbe_list, &dbe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) spin_unlock_irq(&dbe_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) void module_arch_cleanup(struct module *mod)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) spin_lock_irq(&dbe_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) list_del(&mod->arch.dbe_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) spin_unlock_irq(&dbe_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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