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authorJiasheng Jiang <jiasheng@iscas.ac.cn>2021-10-26 10:32:11 +0300
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>2021-11-02 15:45:44 +0300
commitcbd5458ef19594c7a1ec69e77a624a5502a79eb9 (patch)
tree839c5cad21a22db77d99bad4c77298f717478a83
parent9e2b3e834c450ce23073093992f450544100c99a (diff)
downloadlinux-cbd5458ef19594c7a1ec69e77a624a5502a79eb9.tar.xz
xen: Fix implicit type conversion
The variable 'i' is defined as UINT. However, in the for_each_possible_cpu its value is assigned to -1. That doesn't make sense and in the cpumask_next() it is implicitly type converted to INT. It is universally accepted that the implicit type conversion is terrible. Also, having the good programming custom will set an example for others. Thus, it might be better to change the definition of 'i' from UINT to INT. [boris: fixed commit message formatting] Fixes: 3fac10145b76 ("xen: Re-upload processor PM data to hypervisor after S3 resume (v2)") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Link: https://lore.kernel.org/r/1635233531-2437704-1-git-send-email-jiasheng@iscas.ac.cn Reviewed-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jiamei Xie <jiamei.xie@arm.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
-rw-r--r--drivers/xen/xen-acpi-processor.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index df7cab870be5..9cb61db67efd 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -450,7 +450,7 @@ static struct acpi_processor_performance __percpu *acpi_perf_data;
static void free_acpi_perf_data(void)
{
- unsigned int i;
+ int i;
/* Freeing a NULL pointer is OK, and alloc_percpu zeroes. */
for_each_possible_cpu(i)
@@ -462,7 +462,7 @@ static void free_acpi_perf_data(void)
static int xen_upload_processor_pm_data(void)
{
struct acpi_processor *pr_backup = NULL;
- unsigned int i;
+ int i;
int rc = 0;
pr_info("Uploading Xen processor PM info\n");
@@ -518,7 +518,7 @@ static struct syscore_ops xap_syscore_ops = {
static int __init xen_acpi_processor_init(void)
{
- unsigned int i;
+ int i;
int rc;
if (!xen_initial_domain())