git: fcef359272fd - main - uart: Use uintptr_t instead of vm_offset_t for pointer arithmetic

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Wed, 04 Sep 2024 13:56:39 UTC
The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=fcef359272fdda27eef770a512b15bb40232cbd2

commit fcef359272fdda27eef770a512b15bb40232cbd2
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2024-09-04 13:56:21 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2024-09-04 13:56:21 +0000

    uart: Use uintptr_t instead of vm_offset_t for pointer arithmetic
    
    Reviewed by:    imp
    Obtained from:  CheriBSD
    Sponsored by:   AFRL, DARPA
    Differential Revision:  https://reviews.freebsd.org/D46490
---
 sys/dev/uart/uart_cpu_acpi.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sys/dev/uart/uart_cpu_acpi.c b/sys/dev/uart/uart_cpu_acpi.c
index 53fe459e64a1..7892437e11de 100644
--- a/sys/dev/uart/uart_cpu_acpi.c
+++ b/sys/dev/uart/uart_cpu_acpi.c
@@ -235,10 +235,10 @@ uart_cpu_acpi_dbg2(struct uart_devinfo *di)
 
 	error = ENXIO;
 
-	dbg2_dev = (ACPI_DBG2_DEVICE *)((vm_offset_t)dbg2 + dbg2->InfoOffset);
+	dbg2_dev = (ACPI_DBG2_DEVICE *)((uintptr_t)dbg2 + dbg2->InfoOffset);
 	found = false;
-	while ((vm_offset_t)dbg2_dev + dbg2_dev->Length <=
-	    (vm_offset_t)dbg2 + dbg2->Header.Length) {
+	while ((uintptr_t)dbg2_dev + dbg2_dev->Length <=
+	    (uintptr_t)dbg2 + dbg2->Header.Length) {
 		if (dbg2_dev->PortType != ACPI_DBG2_SERIAL_PORT)
 			goto next;
 
@@ -252,7 +252,7 @@ uart_cpu_acpi_dbg2(struct uart_devinfo *di)
 
 		class = cd->cd_class;
 		base_address = (ACPI_GENERIC_ADDRESS *)
-		    ((vm_offset_t)dbg2_dev + dbg2_dev->BaseAddressOffset);
+		    ((uintptr_t)dbg2_dev + dbg2_dev->BaseAddressOffset);
 
 		error = uart_cpu_acpi_init_devinfo(di, class, base_address);
 		if (error == 0) {
@@ -262,7 +262,7 @@ uart_cpu_acpi_dbg2(struct uart_devinfo *di)
 
 next:
 		dbg2_dev = (ACPI_DBG2_DEVICE *)
-		    ((vm_offset_t)dbg2_dev + dbg2_dev->Length);
+		    ((uintptr_t)dbg2_dev + dbg2_dev->Length);
 	}
 	if (!found)
 		goto out;