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qdev-properties: blocksize: use same limits in code and description 

Make it easier (more visible) to maintain the limits on the blocksize
properties in sync with the respective description, by using macros both
in the code and in the description.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-4-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
master
Roman Kagan 2020-05-29 01:55:11 +03:00 committed by Kevin Wolf
parent c56ee92fcb
commit a345c55236
1 changed files with 15 additions and 6 deletions
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21
hw/core/qdev-properties.c
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@ -729,6 +729,13 @@ const PropertyInfo qdev_prop_pci_devfn = {
/* --- blocksize --- */
/* lower limit is sector size */
#define MIN_BLOCK_SIZE 512
#define MIN_BLOCK_SIZE_STR stringify(MIN_BLOCK_SIZE)
/* upper limit is the max power of 2 that fits in uint16_t */
#define MAX_BLOCK_SIZE 32768
#define MAX_BLOCK_SIZE_STR stringify(MAX_BLOCK_SIZE)
static void set_blocksize(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -736,8 +743,6 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name,
Property *prop = opaque;
uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop);
Error *local_err = NULL;
const int64_t min = 512;
const int64_t max = 32768;
if (dev->realized) {
qdev_prop_set_after_realize(dev, name, errp);
@ -750,9 +755,12 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name,
return;
}
/* value of 0 means "unset" */
if (value && (value < min || value > max)) {
error_setg(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE,
dev->id ? : "", name, (int64_t)value, min, max);
if (value && (value < MIN_BLOCK_SIZE || value > MAX_BLOCK_SIZE)) {
error_setg(errp,
"Property %s.%s doesn't take value %" PRIu16
" (minimum: " MIN_BLOCK_SIZE_STR
", maximum: " MAX_BLOCK_SIZE_STR ")",
dev->id ? : "", name, value);
return;
}
@ -769,7 +777,8 @@ static void set_blocksize(Object *obj, Visitor *v, const char *name,
const PropertyInfo qdev_prop_blocksize = {
.name = "uint16",
.description = "A power of two between 512 and 32768",
.description = "A power of two between " MIN_BLOCK_SIZE_STR
" and " MAX_BLOCK_SIZE_STR,
.get = get_uint16,
.set = set_blocksize,
.set_default_value = set_default_value_uint,