(Top posting for visibility)
Hi Thomas,
We had a discussion on this issue[1], the conclusion was it's a clang
misbehavior,
however, it turns out that GCC is doing the same.
Do you want to pick that patch?
Thanks
[1]:
https://lore.kernel.org/all/20230409104309.13887-6-jiaxun.yang@xxxxxxxxxxx/
在 2024/2/26 21:26, kernel test robot 写道:
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 8552c902efe7ef670b6961fb8885b67961aeb629
commit: dd6d29a6148990bb1d39a37c6c2830e6daf9cb46 [9092/10236] MIPS: Implement microMIPS MT ASE helpers
config: mips-randconfig-r034-20221221 (https://download.01.org/0day-ci/archive/20240227/202402270524.HtRvZbPR-lkp@xxxxxxxxx/config)
compiler: mips-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240227/202402270524.HtRvZbPR-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402270524.HtRvZbPR-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
arch/mips/kernel/mips-mt.c: Assembler messages:
arch/mips/kernel/mips-mt.c:3207: Error: Unable to parse register name $fp
arch/mips/kernel/mips-mt.c:3210: Info: macro invoked from here
{standard input}:3216: Info: macro invoked from here
vim +3207 arch/mips/kernel/mips-mt.c
b24413180f5600 Greg Kroah-Hartman 2017-11-01 1 // SPDX-License-Identifier: GPL-2.0
41c594ab65fc89 Ralf Baechle 2006-04-05 2 /*
b633648c5ad3cf Ralf Baechle 2014-05-23 3 * General MIPS MT support routines, usable in AP/SP and SMVP.
41c594ab65fc89 Ralf Baechle 2006-04-05 4 * Copyright (C) 2005 Mips Technologies, Inc
41c594ab65fc89 Ralf Baechle 2006-04-05 5 */
41c594ab65fc89 Ralf Baechle 2006-04-05 6
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 7 #include <linux/device.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 8 #include <linux/kernel.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 9 #include <linux/sched.h>
73bc256d47a232 Paul Gortmaker 2011-07-23 10 #include <linux/export.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 11 #include <linux/interrupt.h>
f72af3cf06370c Yoichi Yuasa 2006-07-04 12 #include <linux/security.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 13
41c594ab65fc89 Ralf Baechle 2006-04-05 14 #include <asm/cpu.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 15 #include <asm/processor.h>
60063497a95e71 Arun Sharma 2011-07-26 16 #include <linux/atomic.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 17 #include <asm/hardirq.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 18 #include <asm/mmu_context.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 19 #include <asm/mipsmtregs.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 20 #include <asm/r4kcache.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 21 #include <asm/cacheflush.h>
4666cf018a26d8 Arnd Bergmann 2023-12-04 22 #include <asm/mips_mt.h>
41c594ab65fc89 Ralf Baechle 2006-04-05 23
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 24 int vpelimit;
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 25
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 26 static int __init maxvpes(char *str)
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 27 {
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 28 get_option(&str, &vpelimit);
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 29
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 30 return 1;
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 31 }
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 32
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 33 __setup("maxvpes=", maxvpes);
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 34
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 35 int tclimit;
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 36
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 37 static int __init maxtcs(char *str)
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 38 {
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 39 get_option(&str, &tclimit);
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 40
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 41 return 1;
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 42 }
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 43
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 44 __setup("maxtcs=", maxtcs);
07cc0c9e65d3e2 Ralf Baechle 2007-07-27 45
41c594ab65fc89 Ralf Baechle 2006-04-05 46 /*
41c594ab65fc89 Ralf Baechle 2006-04-05 47 * Dump new MIPS MT state for the core. Does not leave TCs halted.
41c594ab65fc89 Ralf Baechle 2006-04-05 48 * Takes an argument which taken to be a pre-call MVPControl value.
41c594ab65fc89 Ralf Baechle 2006-04-05 49 */
41c594ab65fc89 Ralf Baechle 2006-04-05 50
41c594ab65fc89 Ralf Baechle 2006-04-05 51 void mips_mt_regdump(unsigned long mvpctl)
41c594ab65fc89 Ralf Baechle 2006-04-05 52 {
41c594ab65fc89 Ralf Baechle 2006-04-05 53 unsigned long flags;
41c594ab65fc89 Ralf Baechle 2006-04-05 54 unsigned long vpflags;
41c594ab65fc89 Ralf Baechle 2006-04-05 55 unsigned long mvpconf0;
41c594ab65fc89 Ralf Baechle 2006-04-05 56 int nvpe;
41c594ab65fc89 Ralf Baechle 2006-04-05 57 int ntc;
41c594ab65fc89 Ralf Baechle 2006-04-05 58 int i;
41c594ab65fc89 Ralf Baechle 2006-04-05 59 int tc;
41c594ab65fc89 Ralf Baechle 2006-04-05 60 unsigned long haltval;
41c594ab65fc89 Ralf Baechle 2006-04-05 61 unsigned long tcstatval;
41c594ab65fc89 Ralf Baechle 2006-04-05 62
41c594ab65fc89 Ralf Baechle 2006-04-05 63 local_irq_save(flags);
41c594ab65fc89 Ralf Baechle 2006-04-05 64 vpflags = dvpe();
41c594ab65fc89 Ralf Baechle 2006-04-05 65 printk("=== MIPS MT State Dump ===\n");
41c594ab65fc89 Ralf Baechle 2006-04-05 66 printk("-- Global State --\n");
41c594ab65fc89 Ralf Baechle 2006-04-05 67 printk(" MVPControl Passed: %08lx\n", mvpctl);
41c594ab65fc89 Ralf Baechle 2006-04-05 68 printk(" MVPControl Read: %08lx\n", vpflags);
41c594ab65fc89 Ralf Baechle 2006-04-05 69 printk(" MVPConf0 : %08lx\n", (mvpconf0 = read_c0_mvpconf0()));
41c594ab65fc89 Ralf Baechle 2006-04-05 70 nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 71 ntc = ((mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT) + 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 72 printk("-- per-VPE State --\n");
41c594ab65fc89 Ralf Baechle 2006-04-05 73 for (i = 0; i < nvpe; i++) {
41c594ab65fc89 Ralf Baechle 2006-04-05 74 for (tc = 0; tc < ntc; tc++) {
41c594ab65fc89 Ralf Baechle 2006-04-05 75 settc(tc);
41c594ab65fc89 Ralf Baechle 2006-04-05 76 if ((read_tc_c0_tcbind() & TCBIND_CURVPE) == i) {
41c594ab65fc89 Ralf Baechle 2006-04-05 77 printk(" VPE %d\n", i);
d223a86154f8c6 Ralf Baechle 2007-07-10 78 printk(" VPEControl : %08lx\n",
d223a86154f8c6 Ralf Baechle 2007-07-10 79 read_vpe_c0_vpecontrol());
d223a86154f8c6 Ralf Baechle 2007-07-10 80 printk(" VPEConf0 : %08lx\n",
d223a86154f8c6 Ralf Baechle 2007-07-10 81 read_vpe_c0_vpeconf0());
41c594ab65fc89 Ralf Baechle 2006-04-05 82 printk(" VPE%d.Status : %08lx\n",
41c594ab65fc89 Ralf Baechle 2006-04-05 83 i, read_vpe_c0_status());
b012cffe7f6971 Ralf Baechle 2008-07-15 84 printk(" VPE%d.EPC : %08lx %pS\n",
b012cffe7f6971 Ralf Baechle 2008-07-15 85 i, read_vpe_c0_epc(),
b012cffe7f6971 Ralf Baechle 2008-07-15 86 (void *) read_vpe_c0_epc());
d223a86154f8c6 Ralf Baechle 2007-07-10 87 printk(" VPE%d.Cause : %08lx\n",
d223a86154f8c6 Ralf Baechle 2007-07-10 88 i, read_vpe_c0_cause());
41c594ab65fc89 Ralf Baechle 2006-04-05 89 printk(" VPE%d.Config7 : %08lx\n",
41c594ab65fc89 Ralf Baechle 2006-04-05 90 i, read_vpe_c0_config7());
41c594ab65fc89 Ralf Baechle 2006-04-05 91 break; /* Next VPE */
41c594ab65fc89 Ralf Baechle 2006-04-05 92 }
41c594ab65fc89 Ralf Baechle 2006-04-05 93 }
41c594ab65fc89 Ralf Baechle 2006-04-05 94 }
41c594ab65fc89 Ralf Baechle 2006-04-05 95 printk("-- per-TC State --\n");
41c594ab65fc89 Ralf Baechle 2006-04-05 96 for (tc = 0; tc < ntc; tc++) {
41c594ab65fc89 Ralf Baechle 2006-04-05 97 settc(tc);
41c594ab65fc89 Ralf Baechle 2006-04-05 98 if (read_tc_c0_tcbind() == read_c0_tcbind()) {
41c594ab65fc89 Ralf Baechle 2006-04-05 99 /* Are we dumping ourself? */
41c594ab65fc89 Ralf Baechle 2006-04-05 100 haltval = 0; /* Then we're not halted, and mustn't be */
41c594ab65fc89 Ralf Baechle 2006-04-05 101 tcstatval = flags; /* And pre-dump TCStatus is flags */
41c594ab65fc89 Ralf Baechle 2006-04-05 102 printk(" TC %d (current TC with VPE EPC above)\n", tc);
41c594ab65fc89 Ralf Baechle 2006-04-05 103 } else {
41c594ab65fc89 Ralf Baechle 2006-04-05 104 haltval = read_tc_c0_tchalt();
41c594ab65fc89 Ralf Baechle 2006-04-05 105 write_tc_c0_tchalt(1);
41c594ab65fc89 Ralf Baechle 2006-04-05 106 tcstatval = read_tc_c0_tcstatus();
41c594ab65fc89 Ralf Baechle 2006-04-05 107 printk(" TC %d\n", tc);
41c594ab65fc89 Ralf Baechle 2006-04-05 108 }
41c594ab65fc89 Ralf Baechle 2006-04-05 109 printk(" TCStatus : %08lx\n", tcstatval);
41c594ab65fc89 Ralf Baechle 2006-04-05 110 printk(" TCBind : %08lx\n", read_tc_c0_tcbind());
b012cffe7f6971 Ralf Baechle 2008-07-15 111 printk(" TCRestart : %08lx %pS\n",
b012cffe7f6971 Ralf Baechle 2008-07-15 112 read_tc_c0_tcrestart(), (void *) read_tc_c0_tcrestart());
41c594ab65fc89 Ralf Baechle 2006-04-05 113 printk(" TCHalt : %08lx\n", haltval);
41c594ab65fc89 Ralf Baechle 2006-04-05 114 printk(" TCContext : %08lx\n", read_tc_c0_tccontext());
41c594ab65fc89 Ralf Baechle 2006-04-05 115 if (!haltval)
41c594ab65fc89 Ralf Baechle 2006-04-05 116 write_tc_c0_tchalt(0);
41c594ab65fc89 Ralf Baechle 2006-04-05 117 }
41c594ab65fc89 Ralf Baechle 2006-04-05 118 printk("===========================\n");
41c594ab65fc89 Ralf Baechle 2006-04-05 119 evpe(vpflags);
41c594ab65fc89 Ralf Baechle 2006-04-05 120 local_irq_restore(flags);
41c594ab65fc89 Ralf Baechle 2006-04-05 121 }
41c594ab65fc89 Ralf Baechle 2006-04-05 122
41c594ab65fc89 Ralf Baechle 2006-04-05 123 static int mt_opt_rpsctl = -1;
41c594ab65fc89 Ralf Baechle 2006-04-05 124 static int mt_opt_nblsu = -1;
982f6ffeeed5ef Ralf Baechle 2009-09-17 125 static int mt_opt_forceconfig7;
41c594ab65fc89 Ralf Baechle 2006-04-05 126 static int mt_opt_config7 = -1;
41c594ab65fc89 Ralf Baechle 2006-04-05 127
41c594ab65fc89 Ralf Baechle 2006-04-05 128 static int __init rpsctl_set(char *str)
41c594ab65fc89 Ralf Baechle 2006-04-05 129 {
41c594ab65fc89 Ralf Baechle 2006-04-05 130 get_option(&str, &mt_opt_rpsctl);
41c594ab65fc89 Ralf Baechle 2006-04-05 131 return 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 132 }
41c594ab65fc89 Ralf Baechle 2006-04-05 133 __setup("rpsctl=", rpsctl_set);
41c594ab65fc89 Ralf Baechle 2006-04-05 134
41c594ab65fc89 Ralf Baechle 2006-04-05 135 static int __init nblsu_set(char *str)
41c594ab65fc89 Ralf Baechle 2006-04-05 136 {
41c594ab65fc89 Ralf Baechle 2006-04-05 137 get_option(&str, &mt_opt_nblsu);
41c594ab65fc89 Ralf Baechle 2006-04-05 138 return 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 139 }
41c594ab65fc89 Ralf Baechle 2006-04-05 140 __setup("nblsu=", nblsu_set);
41c594ab65fc89 Ralf Baechle 2006-04-05 141
41c594ab65fc89 Ralf Baechle 2006-04-05 142 static int __init config7_set(char *str)
41c594ab65fc89 Ralf Baechle 2006-04-05 143 {
41c594ab65fc89 Ralf Baechle 2006-04-05 144 get_option(&str, &mt_opt_config7);
41c594ab65fc89 Ralf Baechle 2006-04-05 145 mt_opt_forceconfig7 = 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 146 return 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 147 }
41c594ab65fc89 Ralf Baechle 2006-04-05 148 __setup("config7=", config7_set);
41c594ab65fc89 Ralf Baechle 2006-04-05 149
982f6ffeeed5ef Ralf Baechle 2009-09-17 150 static unsigned int itc_base;
41c594ab65fc89 Ralf Baechle 2006-04-05 151
41c594ab65fc89 Ralf Baechle 2006-04-05 152 static int __init set_itc_base(char *str)
41c594ab65fc89 Ralf Baechle 2006-04-05 153 {
41c594ab65fc89 Ralf Baechle 2006-04-05 154 get_option(&str, &itc_base);
41c594ab65fc89 Ralf Baechle 2006-04-05 155 return 1;
41c594ab65fc89 Ralf Baechle 2006-04-05 156 }
41c594ab65fc89 Ralf Baechle 2006-04-05 157
41c594ab65fc89 Ralf Baechle 2006-04-05 158 __setup("itcbase=", set_itc_base);
41c594ab65fc89 Ralf Baechle 2006-04-05 159
41c594ab65fc89 Ralf Baechle 2006-04-05 160 void mips_mt_set_cpuoptions(void)
41c594ab65fc89 Ralf Baechle 2006-04-05 161 {
41c594ab65fc89 Ralf Baechle 2006-04-05 162 unsigned int oconfig7 = read_c0_config7();
41c594ab65fc89 Ralf Baechle 2006-04-05 163 unsigned int nconfig7 = oconfig7;
41c594ab65fc89 Ralf Baechle 2006-04-05 164
41c594ab65fc89 Ralf Baechle 2006-04-05 165 if (mt_opt_rpsctl >= 0) {
41c594ab65fc89 Ralf Baechle 2006-04-05 166 printk("34K return prediction stack override set to %d.\n",
41c594ab65fc89 Ralf Baechle 2006-04-05 167 mt_opt_rpsctl);
41c594ab65fc89 Ralf Baechle 2006-04-05 168 if (mt_opt_rpsctl)
41c594ab65fc89 Ralf Baechle 2006-04-05 169 nconfig7 |= (1 << 2);
41c594ab65fc89 Ralf Baechle 2006-04-05 170 else
41c594ab65fc89 Ralf Baechle 2006-04-05 171 nconfig7 &= ~(1 << 2);
41c594ab65fc89 Ralf Baechle 2006-04-05 172 }
41c594ab65fc89 Ralf Baechle 2006-04-05 173 if (mt_opt_nblsu >= 0) {
41c594ab65fc89 Ralf Baechle 2006-04-05 174 printk("34K ALU/LSU sync override set to %d.\n", mt_opt_nblsu);
41c594ab65fc89 Ralf Baechle 2006-04-05 175 if (mt_opt_nblsu)
41c594ab65fc89 Ralf Baechle 2006-04-05 176 nconfig7 |= (1 << 5);
41c594ab65fc89 Ralf Baechle 2006-04-05 177 else
41c594ab65fc89 Ralf Baechle 2006-04-05 178 nconfig7 &= ~(1 << 5);
41c594ab65fc89 Ralf Baechle 2006-04-05 179 }
41c594ab65fc89 Ralf Baechle 2006-04-05 180 if (mt_opt_forceconfig7) {
41c594ab65fc89 Ralf Baechle 2006-04-05 181 printk("CP0.Config7 forced to 0x%08x.\n", mt_opt_config7);
41c594ab65fc89 Ralf Baechle 2006-04-05 182 nconfig7 = mt_opt_config7;
41c594ab65fc89 Ralf Baechle 2006-04-05 183 }
41c594ab65fc89 Ralf Baechle 2006-04-05 184 if (oconfig7 != nconfig7) {
41c594ab65fc89 Ralf Baechle 2006-04-05 185 __asm__ __volatile("sync");
41c594ab65fc89 Ralf Baechle 2006-04-05 186 write_c0_config7(nconfig7);
41c594ab65fc89 Ralf Baechle 2006-04-05 187 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 188 printk("Config7: 0x%08x\n", read_c0_config7());
41c594ab65fc89 Ralf Baechle 2006-04-05 189 }
41c594ab65fc89 Ralf Baechle 2006-04-05 190
41c594ab65fc89 Ralf Baechle 2006-04-05 191 if (itc_base != 0) {
41c594ab65fc89 Ralf Baechle 2006-04-05 192 /*
41c594ab65fc89 Ralf Baechle 2006-04-05 193 * Configure ITC mapping. This code is very
41c594ab65fc89 Ralf Baechle 2006-04-05 194 * specific to the 34K core family, which uses
41c594ab65fc89 Ralf Baechle 2006-04-05 195 * a special mode bit ("ITC") in the ErrCtl
41c594ab65fc89 Ralf Baechle 2006-04-05 196 * register to enable access to ITC control
41c594ab65fc89 Ralf Baechle 2006-04-05 197 * registers via cache "tag" operations.
41c594ab65fc89 Ralf Baechle 2006-04-05 198 */
41c594ab65fc89 Ralf Baechle 2006-04-05 199 unsigned long ectlval;
41c594ab65fc89 Ralf Baechle 2006-04-05 200 unsigned long itcblkgrn;
41c594ab65fc89 Ralf Baechle 2006-04-05 201
41c594ab65fc89 Ralf Baechle 2006-04-05 202 /* ErrCtl register is known as "ecc" to Linux */
41c594ab65fc89 Ralf Baechle 2006-04-05 203 ectlval = read_c0_ecc();
41c594ab65fc89 Ralf Baechle 2006-04-05 204 write_c0_ecc(ectlval | (0x1 << 26));
41c594ab65fc89 Ralf Baechle 2006-04-05 205 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 206 #define INDEX_0 (0x80000000)
41c594ab65fc89 Ralf Baechle 2006-04-05 207 #define INDEX_8 (0x80000008)
41c594ab65fc89 Ralf Baechle 2006-04-05 208 /* Read "cache tag" for Dcache pseudo-index 8 */
41c594ab65fc89 Ralf Baechle 2006-04-05 209 cache_op(Index_Load_Tag_D, INDEX_8);
41c594ab65fc89 Ralf Baechle 2006-04-05 210 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 211 itcblkgrn = read_c0_dtaglo();
41c594ab65fc89 Ralf Baechle 2006-04-05 212 itcblkgrn &= 0xfffe0000;
41c594ab65fc89 Ralf Baechle 2006-04-05 213 /* Set for 128 byte pitch of ITC cells */
41c594ab65fc89 Ralf Baechle 2006-04-05 214 itcblkgrn |= 0x00000c00;
41c594ab65fc89 Ralf Baechle 2006-04-05 215 /* Stage in Tag register */
41c594ab65fc89 Ralf Baechle 2006-04-05 216 write_c0_dtaglo(itcblkgrn);
41c594ab65fc89 Ralf Baechle 2006-04-05 217 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 218 /* Write out to ITU with CACHE op */
41c594ab65fc89 Ralf Baechle 2006-04-05 219 cache_op(Index_Store_Tag_D, INDEX_8);
41c594ab65fc89 Ralf Baechle 2006-04-05 220 /* Now set base address, and turn ITC on with 0x1 bit */
41c594ab65fc89 Ralf Baechle 2006-04-05 221 write_c0_dtaglo((itc_base & 0xfffffc00) | 0x1 );
41c594ab65fc89 Ralf Baechle 2006-04-05 222 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 223 /* Write out to ITU with CACHE op */
41c594ab65fc89 Ralf Baechle 2006-04-05 224 cache_op(Index_Store_Tag_D, INDEX_0);
41c594ab65fc89 Ralf Baechle 2006-04-05 225 write_c0_ecc(ectlval);
41c594ab65fc89 Ralf Baechle 2006-04-05 226 ehb();
41c594ab65fc89 Ralf Baechle 2006-04-05 227 printk("Mapped %ld ITC cells starting at 0x%08x\n",
41c594ab65fc89 Ralf Baechle 2006-04-05 228 ((itcblkgrn & 0x7fe00000) >> 20), itc_base);
41c594ab65fc89 Ralf Baechle 2006-04-05 229 }
41c594ab65fc89 Ralf Baechle 2006-04-05 230 }
41c594ab65fc89 Ralf Baechle 2006-04-05 231
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 232 struct class *mt_class;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 233
15d2ce7129f25c Liam R. Howlett 2022-07-29 234 static int __init mips_mt_init(void)
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 235 {
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 236 struct class *mtc;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 237
1aaba11da9aa7d Greg Kroah-Hartman 2023-03-13 238 mtc = class_create("mt");
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 239 if (IS_ERR(mtc))
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 240 return PTR_ERR(mtc);
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 241
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 242 mt_class = mtc;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 243
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 244 return 0;
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 245 }
27a3bbaf4b1e23 Ralf Baechle 2007-02-07 246
15d2ce7129f25c Liam R. Howlett 2022-07-29 247 subsys_initcall(mips_mt_init);
--
---
Jiaxun Yang
