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hw/misc/bcm2835_property: Reduce scope of variables in mbox push function 

In bcm2835_property_mbox_push(), some variables are defined at function scope
but used only in a smaller scope of the function:
 * tag, bufsize, resplen are used only in the body of the while() loop
 * tmp is used only for RPI_FWREQ_SET_POWER_STATE (and is badly named)

Declare these variables in the scope where they're needed, so the code
is easier to read.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240723131029.1159908-5-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-07-23 14:10:29 +01:00
parent 4b648238b8
commit 28fe81f052
1 changed files with 10 additions and 11 deletions
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21
hw/misc/bcm2835_property.c
View File

@ -25,11 +25,7 @@
static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value) static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
{ {
uint32_t tag;
uint32_t bufsize;
uint32_t tot_len; uint32_t tot_len;
size_t resplen;
uint32_t tmp;
/* /*
* Copy the current state of the framebuffer config; we will update * Copy the current state of the framebuffer config; we will update
@ -48,10 +44,10 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
/* @(addr + 4) : Buffer response code */ /* @(addr + 4) : Buffer response code */
value = s->addr + 8; value = s->addr + 8;
while (value + 8 <= s->addr + tot_len) { while (value + 8 <= s->addr + tot_len) {
tag = ldl_le_phys(&s->dma_as, value); uint32_t tag = ldl_le_phys(&s->dma_as, value);
bufsize = ldl_le_phys(&s->dma_as, value + 4); uint32_t bufsize = ldl_le_phys(&s->dma_as, value + 4);
/* @(value + 8) : Request/response indicator */ /* @(value + 8) : Request/response indicator */
resplen = 0; size_t resplen = 0;
switch (tag) { switch (tag) {
case RPI_FWREQ_PROPERTY_END: case RPI_FWREQ_PROPERTY_END:
break; break;
@ -95,13 +91,16 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
resplen = 8; resplen = 8;
break; break;
case RPI_FWREQ_SET_POWER_STATE: case RPI_FWREQ_SET_POWER_STATE:
/* Assume that whatever device they asked for exists, {
* and we'll just claim we set it to the desired state /*
* Assume that whatever device they asked for exists,
* and we'll just claim we set it to the desired state.
*/ */
tmp = ldl_le_phys(&s->dma_as, value + 16); uint32_t state = ldl_le_phys(&s->dma_as, value + 16);
stl_le_phys(&s->dma_as, value + 16, (tmp & 1)); stl_le_phys(&s->dma_as, value + 16, (state & 1));
resplen = 8; resplen = 8;
break; break;
}
/* Clocks */ /* Clocks */