在2023年7月19日七月 下午7:39，Philippe Mathieu-Daudé写道：
> On 18/7/23 15:44, Jiaxun Yang wrote:
>> There are some __iomem type casting being missed in previous patch.
>> Fix them here.
>>
>> Fixes: 5bd3990723bd ("MIPS: Loongson64: Prefix ipi register address pointers with __iomem")
>> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>> Closes: https://lore.kernel.org/oe-kbuild-all/202307020639.QCZOKp8B-lkp@xxxxxxxxx/
>> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
>> ---
>> arch/mips/loongson64/smp.c | 168 ++++++++++++++++++-------------------
>> 1 file changed, 84 insertions(+), 84 deletions(-)
>
>
>> static void ipi_mailbox_buf_init(void)
>> {
>> - ipi_mailbox_buf[0] = (void *)
>> + ipi_mailbox_buf[0] = (void __iomem *)
>> (SMP_CORE_GROUP0_BASE + SMP_CORE0_OFFSET + BUF);
>> - ipi_mailbox_buf[1] = (void *)
>> + ipi_mailbox_buf[1] = (void __iomem *)
>> (SMP_CORE_GROUP0_BASE + SMP_CORE1_OFFSET + BUF);
>> - ipi_mailbox_buf[2] = (void *)
>> + ipi_mailbox_buf[2] = (void __iomem *)
>> (SMP_CORE_GROUP0_BASE + SMP_CORE2_OFFSET + BUF);
>> - ipi_mailbox_buf[3] = (void *)
>> + ipi_mailbox_buf[3] = (void __iomem *)
>> (SMP_CORE_GROUP0_BASE + SMP_CORE3_OFFSET + BUF);
>> - ipi_mailbox_buf[4] = (void *)
>> + ipi_mailbox_buf[4] = (void __iomem *)
>> (SMP_CORE_GROUP1_BASE + SMP_CORE0_OFFSET + BUF);
>> - ipi_mailbox_buf[5] = (void *)
>> + ipi_mailbox_buf[5] = (void __iomem *)
>> (SMP_CORE_GROUP1_BASE + SMP_CORE1_OFFSET + BUF);
>> - ipi_mailbox_buf[6] = (void *)
>> + ipi_mailbox_buf[6] = (void __iomem *)
>> (SMP_CORE_GROUP1_BASE + SMP_CORE2_OFFSET + BUF);
>> - ipi_mailbox_buf[7] = (void *)
>> + ipi_mailbox_buf[7] = (void __iomem *)
>> (SMP_CORE_GROUP1_BASE + SMP_CORE3_OFFSET + BUF);
>> - ipi_mailbox_buf[8] = (void *)
>> + ipi_mailbox_buf[8] = (void __iomem *)
>> (SMP_CORE_GROUP2_BASE + SMP_CORE0_OFFSET + BUF);
>> - ipi_mailbox_buf[9] = (void *)
>> + ipi_mailbox_buf[9] = (void __iomem *)
>> (SMP_CORE_GROUP2_BASE + SMP_CORE1_OFFSET + BUF);
>> - ipi_mailbox_buf[10] = (void *)
>> + ipi_mailbox_buf[10] = (void __iomem *)
>> (SMP_CORE_GROUP2_BASE + SMP_CORE2_OFFSET + BUF);
>> - ipi_mailbox_buf[11] = (void *)
>> + ipi_mailbox_buf[11] = (void __iomem *)
>> (SMP_CORE_GROUP2_BASE + SMP_CORE3_OFFSET + BUF);
>> - ipi_mailbox_buf[12] = (void *)
>> + ipi_mailbox_buf[12] = (void __iomem *)
>> (SMP_CORE_GROUP3_BASE + SMP_CORE0_OFFSET + BUF);
>> - ipi_mailbox_buf[13] = (void *)
>> + ipi_mailbox_buf[13] = (void __iomem *)
>> (SMP_CORE_GROUP3_BASE + SMP_CORE1_OFFSET + BUF);
>> - ipi_mailbox_buf[14] = (void *)
>> + ipi_mailbox_buf[14] = (void __iomem *)
>> (SMP_CORE_GROUP3_BASE + SMP_CORE2_OFFSET + BUF);
>> - ipi_mailbox_buf[15] = (void *)
>> + ipi_mailbox_buf[15] = (void __iomem *)
>> (SMP_CORE_GROUP3_BASE + SMP_CORE3_OFFSET + BUF);
>> }
>
> OK up to here,
>
>> @@ -782,7 +782,7 @@ void play_dead(void)
>>
>> if (prid_imp == PRID_IMP_LOONGSON_64G) {
>> play_dead_at_ckseg1 =
>> - (void *)CKSEG1ADDR((unsigned long)loongson3_type3_play_dead);
>> + (void __iomem *)CKSEG1ADDR((unsigned long)loongson3_type3_play_dead);
>
> but these changes look dubious.
Oops, will fix later.
Thanks
>
>> goto out;
>> }
>>
>> @@ -790,19 +790,19 @@ void play_dead(void)
>> case PRID_REV_LOONGSON3A_R1:
>> default:
>> play_dead_at_ckseg1 =
>> - (void *)CKSEG1ADDR((unsigned long)loongson3_type1_play_dead);
>> + (void __iomem *)CKSEG1ADDR((unsigned long)loongson3_type1_play_dead);
>> break;
>> case PRID_REV_LOONGSON3B_R1:
>> case PRID_REV_LOONGSON3B_R2:
>> play_dead_at_ckseg1 =
>> - (void *)CKSEG1ADDR((unsigned long)loongson3_type2_play_dead);
>> + (void __iomem *)CKSEG1ADDR((unsigned long)loongson3_type2_play_dead);
>> break;
>> case PRID_REV_LOONGSON3A_R2_0:
>> case PRID_REV_LOONGSON3A_R2_1:
>> case PRID_REV_LOONGSON3A_R3_0:
>> case PRID_REV_LOONGSON3A_R3_1:
>> play_dead_at_ckseg1 =
>> - (void *)CKSEG1ADDR((unsigned long)loongson3_type3_play_dead);
>> + (void __iomem *)CKSEG1ADDR((unsigned long)loongson3_type3_play_dead);
>> break;
>> }
>>
--
- Jiaxun
