diff mbox series

[v2,07/10] hw/i386: make explicit clearing of pch_rev_id

Message ID 20200909112742.25730-8-alex.bennee@linaro.org
State Superseded
Headers show
Series testing and misc updates | expand

Commit Message

Alex Bennée Sept. 9, 2020, 11:27 a.m. UTC
Some compilers (notably the Xenial gcc in Travis) fail to spot that
this will always be set if pch_dev_id != 0xffff. Given this is setup
code and using _Pragma to override is equally as ugly lets just remove
the doubt from the compilers mind.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

---
 hw/i386/pc_piix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.20.1

Comments

Philippe Mathieu-Daudé Sept. 9, 2020, 12:58 p.m. UTC | #1
On 9/9/20 1:27 PM, Alex Bennée wrote:
> Some compilers (notably the Xenial gcc in Travis) fail to spot that

> this will always be set if pch_dev_id != 0xffff. Given this is setup

> code and using _Pragma to override is equally as ugly lets just remove

> the doubt from the compilers mind.

> 

> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

> ---

>  hw/i386/pc_piix.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

> 

> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c

> index 32b1453e6a8..33fa035fb7f 100644

> --- a/hw/i386/pc_piix.c

> +++ b/hw/i386/pc_piix.c

> @@ -930,7 +930,7 @@ void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id)

>      struct PCIDevice *bridge_dev;

>      int i, num;

>      uint16_t pch_dev_id = 0xffff;

> -    uint8_t pch_rev_id;

> +    uint8_t pch_rev_id = 0;

>  

>      num = ARRAY_SIZE(igd_combo_id_infos);

>      for (i = 0; i < num; i++) {

> 


Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
diff mbox series

Patch

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 32b1453e6a8..33fa035fb7f 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -930,7 +930,7 @@  void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id)
     struct PCIDevice *bridge_dev;
     int i, num;
     uint16_t pch_dev_id = 0xffff;
-    uint8_t pch_rev_id;
+    uint8_t pch_rev_id = 0;
 
     num = ARRAY_SIZE(igd_combo_id_infos);
     for (i = 0; i < num; i++) {