From: Zhang Heng <zhangheng@kylinos.cn>
Date: Mon, 23 Dec 2024 08:54:20 +0000 (+0800)
Subject: kdb: use kmap_local_page()
X-Git-Tag: v6.14-rc1~92^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=36975ec3a2c15c20f0df312633f4272da649d8fc;p=thirdparty%2Fkernel%2Flinux.git

kdb: use kmap_local_page()

Use kmap_local_page() instead of kmap_atomic() which has been deprecated.

Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20241223085420.1815930-1-zhangheng@kylinos.cn
Signed-off-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
---

diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
index 0a39497140bfb..1ef831cacbc26 100644
--- a/kernel/debug/kdb/kdb_support.c
+++ b/kernel/debug/kdb/kdb_support.c
@@ -305,7 +305,7 @@ int kdb_putarea_size(unsigned long addr, void *res, size_t size)
 
 /*
  * kdb_getphys - Read data from a physical address. Validate the
- * 	address is in range, use kmap_atomic() to get data
+ *	address is in range, use kmap_local_page() to get data
  * 	similar to kdb_getarea() - but for phys addresses
  * Inputs:
  * 	res	Pointer to the word to receive the result
@@ -324,9 +324,9 @@ static int kdb_getphys(void *res, unsigned long addr, size_t size)
 	if (!pfn_valid(pfn))
 		return 1;
 	page = pfn_to_page(pfn);
-	vaddr = kmap_atomic(page);
+	vaddr = kmap_local_page(page);
 	memcpy(res, vaddr + (addr & (PAGE_SIZE - 1)), size);
-	kunmap_atomic(vaddr);
+	kunmap_local(vaddr);
 
 	return 0;
 }