From: Heiko Carstens <hca@linux.ibm.com>
Date: Fri, 19 Jan 2024 16:19:46 +0000 (+0100)
Subject: s390/hypfs_sprp: remove unneeded DMA zone allocation
X-Git-Tag: block-6.9-20240315~48^2~105
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=791833f22431aacdec6d489cc138e82c40709450;p=linux-block.git

s390/hypfs_sprp: remove unneeded DMA zone allocation

Remove GFP_DMA flag when allocating memory to be used for diagnose 304.
Diagnose 304 can access memory beyond the DMA zone.

Suggested-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---

diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index e66b4de8913f..9fc3f0dae8f0 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -74,7 +74,7 @@ static int __hypfs_sprp_ioctl(void __user *user_area)
 	int rc;
 
 	rc = -ENOMEM;
-	data = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	data = (void *)get_zeroed_page(GFP_KERNEL);
 	diag304 = kzalloc(sizeof(*diag304), GFP_KERNEL);
 	if (!data || !diag304)
 		goto out;