[RFC V3 3/8] loongarch/mm: Stop using pte_ERROR()

[Anshuman Khandual]

Directly use pr_err() in __set_fixmap() and drop pte_ERROR() which helps in
eventually dropping pte_ERROR() macro across the tree. In this new printing
__FILE__ and __LINE__ has been dropped because they are always the same and
don't really add any value. The new ptval_to_str() helper is being used for
converting pgtable entry value into a string. The error message itself has
been cleaned up as well.

Cc: Huacai Chen <chenhuacai at kernel.org>
Cc: WANG Xuerui <kernel at xen0n.name>
Cc: loongarch at lists.linux.dev
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
---
Changes in RFC V3

- Cleaned up the error message and used ptrval_to_str()

 arch/loongarch/include/asm/pgtable.h | 2 --
 arch/loongarch/mm/init.c             | 4 +++-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index 223528c04d73..a32a8fff70c1 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -128,8 +128,6 @@ struct vm_area_struct;
 #define ptep_get(ptep) READ_ONCE(*(ptep))
 #define pmdp_get(pmdp) READ_ONCE(*(pmdp))
 
-#define pte_ERROR(e) \
-	pr_err("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
 #ifndef __PAGETABLE_PMD_FOLDED
 #define pmd_ERROR(e) \
 	pr_err("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index 3407030f3e7a..b8d6c3cb4565 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -197,13 +197,15 @@ void __init __set_fixmap(enum fixed_addresses idx,
 			       phys_addr_t phys, pgprot_t flags)
 {
 	unsigned long addr = __fix_to_virt(idx);
+	char str[PTVAL_STR_MAX];
 	pte_t *ptep;
 
 	BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
 
 	ptep = populate_kernel_pte(addr);
 	if (!pte_none(ptep_get(ptep))) {
-		pte_ERROR(*ptep);
+		ptval_to_str(str, pte_val(*ptep));
+		pr_err("unexpected set PTE at %lx in %s: %s\n", addr, __func__, str);
 		return;
 	}
 
-- 
2.43.0