Re: [Qemu-devel] [PATCH v2 01/20] hw/i386/pc: Use unsigned type to index arrays

[Michael S. Tsirkin]

On Thu, Jun 13, 2019 at 04:34:27PM +0200, Philippe Mathieu-Daudé wrote:
> Reviewed-by: Li Qiang <address@hidden>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>

Motivation?  Is this a bugfix?


> ---
>  hw/i386/pc.c         | 5 +++--
>  include/hw/i386/pc.h | 2 +-
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 2c5446b095..bb3c74f4ca 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -874,7 +874,7 @@ static void handle_a20_line_change(void *opaque, int irq, 
> int level)
>  
>  int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
>  {
> -    int index = le32_to_cpu(e820_reserve.count);
> +    unsigned int index = le32_to_cpu(e820_reserve.count);
>      struct e820_entry *entry;
>  
>      if (type != E820_RAM) {
> @@ -906,7 +906,8 @@ int e820_get_num_entries(void)
>      return e820_entries;
>  }
>  
> -bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t 
> *length)
> +bool e820_get_entry(unsigned int idx, uint32_t type,
> +                    uint64_t *address, uint64_t *length)
>  {
>      if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) {
>          *address = le64_to_cpu(e820_table[idx].address);
> diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
> index a7d0b87166..3b3a0d6e59 100644
> --- a/include/hw/i386/pc.h
> +++ b/include/hw/i386/pc.h
> @@ -291,7 +291,7 @@ void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
>  
>  int e820_add_entry(uint64_t, uint64_t, uint32_t);
>  int e820_get_num_entries(void);
> -bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
> +bool e820_get_entry(unsigned int, uint32_t, uint64_t *, uint64_t *);
>  
>  extern GlobalProperty pc_compat_4_0_1[];
>  extern const size_t pc_compat_4_0_1_len;
> -- 
> 2.20.1