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libcpu: riscv: common: fixed build warnings 

When building bsp/cvitek/c906_little, compiler warns:

```
.../rt-thread/libcpu/risc-v/common/trap_common.c:
In function 'rt_hw_interrupt_install':
.../rt-thread/libcpu/risc-v/common/trap_common.c:50:11:
warning: unused variable 'user_param' [-Wunused-variable]
   50 |     void *user_param = param;
      |           ^~~~~~~~~~
.../rt-thread/libcpu/risc-v/common/trap_common.c:
In function 'rt_rv32_system_irq_handler':
.../rt-thread/libcpu/risc-v/common/trap_common.c:77:25:
warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   77 |         s_stack_frame = (rt_hw_stack_frame_t *)mscratch;
      |                         ^
```

Fixed these warnings as per indication from gcc.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
This commit is contained in:
Chen Wang 2025-01-27 10:58:05 +08:00 committed by Meco Man
parent 3383352cdc
commit 2dfbae2853
1 changed files with 1 additions and 2 deletions
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3
libcpu/risc-v/common/trap_common.c
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@ -47,7 +47,6 @@ rt_weak rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t ha
void *param, const char *name)
{
rt_isr_handler_t old_handler = RT_NULL;
void *user_param = param;
if(vector < ISR_NUMBER)
{
@ -74,7 +73,7 @@ rt_weak void rt_rv32_system_irq_handler(rt_uint32_t mcause)
rt_uint32_t exception = !(mcause & 0x80000000);
if(exception)
{
s_stack_frame = (rt_hw_stack_frame_t *)mscratch;
s_stack_frame = (volatile rt_hw_stack_frame_t *)(uintptr_t)mscratch;
rt_show_stack_frame();
}
else