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Re: [PATCH v2] hw/i386/pc: Remove vmport value assertion


From: Richard Henderson
Subject: Re: [PATCH v2] hw/i386/pc: Remove vmport value assertion
Date: Wed, 21 Aug 2024 09:18:45 +1000
User-agent: Mozilla Thunderbird

On 8/21/24 09:11, Kamil Szczęk wrote:
There is no need for this assertion here, as we only use vmport value
for equality/inequality checks. This was originally prompted by the
following Coverity report:
  >>> CID 1559533:  Integer handling issues (CONSTANT_EXPRESSION_RESULT)
  >>> "pcms->vmport >= 0" is always true regardless of the values of
  >>> its operands. This occurs as the logical first operand of "&&".

Signed-off-by: Kamil Szczęk <kamil@szczek.dev>
Reported-By: Philippe Mathieu-Daudé <philmd@linaro.org>
---
  hw/i386/pc.c | 1 -
  1 file changed, 1 deletion(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 7779c88a91..5302fd96b4 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1221,7 +1221,6 @@ void pc_basic_device_init(struct PCMachineState *pcms,
          isa_realize_and_unref(pcms->pcspk, isa_bus, &error_fatal);
      }
- assert(pcms->vmport >= 0 && pcms->vmport < ON_OFF_AUTO__MAX);
      if (pcms->vmport == ON_OFF_AUTO_AUTO) {
          pcms->vmport = (xen_enabled() || !pcms->i8042_enabled)
              ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~



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