Re: [PATCH v3 12/22] MIPS: Get rid of CONFIG_NO_EXCEPT_FILL
From: kernel test robot
Date: Tue Dec 05 2023 - 19:41:26 EST
Hi Gregory,
kernel test robot noticed the following build warnings:
[auto build test WARNING on robh/for-next]
[also build test WARNING on lee-mfd/for-mfd-next linus/master v6.7-rc4]
[cannot apply to lee-mfd/for-mfd-fixes next-20231205]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Gregory-CLEMENT/MIPS-Export-higher-highest-relocation-functions-in-uasm/20231201-201547
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20231201111512.803120-13-gregory.clement%40bootlin.com
patch subject: [PATCH v3 12/22] MIPS: Get rid of CONFIG_NO_EXCEPT_FILL
config: mips-fuloong2e_defconfig (https://download.01.org/0day-ci/archive/20231206/202312060831.fGiw8m5S-lkp@xxxxxxxxx/config)
compiler: mips64el-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231206/202312060831.fGiw8m5S-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/202312060831.fGiw8m5S-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
>> arch/mips/kernel/head.S:63:35: warning: "KSEG0" is not defined, evaluates to 0 [-Wundef]
63 | ((VMLINUX_LOAD_ADDRESS == KSEG0) || \
| ^~~~~
vim +/KSEG0 +63 arch/mips/kernel/head.S
28
29 /*
30 * For the moment disable interrupts, mark the kernel mode and
31 * set ST0_KX so that the CPU does not spit fire when using
32 * 64-bit addresses. A full initialization of the CPU's status
33 * register is done later in per_cpu_trap_init().
34 */
35 .macro setup_c0_status set clr
36 .set push
37 mfc0 t0, CP0_STATUS
38 or t0, ST0_KERNEL_CUMASK|\set|0x1f|\clr
39 xor t0, 0x1f|\clr
40 mtc0 t0, CP0_STATUS
41 .set noreorder
42 sll zero,3 # ehb
43 .set pop
44 .endm
45
46 .macro setup_c0_status_pri
47 #ifdef CONFIG_64BIT
48 setup_c0_status ST0_KX 0
49 #else
50 setup_c0_status 0 0
51 #endif
52 .endm
53
54 .macro setup_c0_status_sec
55 #ifdef CONFIG_64BIT
56 setup_c0_status ST0_KX ST0_BEV
57 #else
58 setup_c0_status 0 ST0_BEV
59 #endif
60 .endm
61
62 #if (MIPS_ISA_REV < 2) && \
> 63 ((VMLINUX_LOAD_ADDRESS == KSEG0) || \
64 (VMLINUX_LOAD_ADDRESS == CKSEG0))
65 /*
66 * Reserved space for exception handlers.
67 * Necessary for machines which link their kernels at KSEG0
68 * and incapable of moving ebase.
69 */
70 .fill 0x400
71 #endif
72
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