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PCI/ASPM: Return U32_MAX instead of bit magic construct

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Instead of returning a bit obscure -1U, make code's intent of returning
the maximum representable value more obvious by returning U32_MAX.

Link: https://lore.kernel.org/r/20230915155752.84640-4-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Ilpo Järvinen 2023-09-15 18:57:48 +03:00 committed by Bjorn Helgaas
parent 52d92516cb
commit 69bb38b774
1 changed files with 3 additions and 2 deletions
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5
drivers/pci/pcie/aspm.c
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@ -9,6 +9,7 @@
#include <linux/bitfield.h>
#include <linux/kernel.h>
#include <linux/limits.h>
#include <linux/math.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@ -279,7 +280,7 @@ static u32 calc_l0s_latency(u32 lnkcap)
static u32 calc_l0s_acceptable(u32 encoding)
{
if (encoding == 0x7)
return -1U;
return U32_MAX;
return (64 << encoding);
}
@ -297,7 +298,7 @@ static u32 calc_l1_latency(u32 lnkcap)
static u32 calc_l1_acceptable(u32 encoding)
{
if (encoding == 0x7)
return -1U;
return U32_MAX;
return (1000 << encoding);
}