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package/cryptodev-linux: Fix build for Linux 6.18

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Buildroot commit a06d79862a bumped the
linux kernel to version 6.18 which broke the build of cryptodev-linux.

Added upstream patch to fix the problem.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Bernd Kuhls
2025-12-07 20:23:42 +01:00
committed by Peter Korsgaard
parent 8745e0d5ca
commit 6086429850
1 changed files with 55 additions and 0 deletions
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55
package/cryptodev-linux/0001-Fix-build-for-Linux-6.18-rc1.patch Normal file
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@@ -0,0 +1,55 @@
From 08644db02d43478f802755903212f5ee506af73b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joan=20Bruguera=20Mic=C3=B3?= <joanbrugueram@gmail.com>
Date: Sat, 6 Sep 2025 20:36:38 +0000
Subject: [PATCH] Fix build for Linux 6.18-rc1
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
It's no longer required to use nth_page() when iterating pages within a
single scatterlist entry.
Note I believe this code path in `sg_advance` is currently unreachable:
It is only called from `get_userbuf_srtp`, passing in a scatterlist
copied from one created by `__get_userbuf`, which only generates
entries such that `sg->offset + sg->length <= PAGE_SIZE`.
On the other hand, this code path in `sg_advance` requires that
`sg->offset + sg->length > sg->offset + consumed >= PAGE_SIZE`.
See also: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f8f03eb5f0f91fddc9bb8563c7e82bd7d3ba1dd0
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ce00897b94bc5c62fab962625efcf1ab824d3688
Signed-off-by: Joan Bruguera Micó <joanbrugueram@gmail.com>
Upstream: https://github.com/cryptodev-linux/cryptodev-linux/commit/08644db02d43478f802755903212f5ee506af73b
Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
util.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/util.c b/util.c
index 9eba4836..d4267816 100644
--- a/util.c
+++ b/util.c
@@ -21,6 +21,7 @@
#include <crypto/scatterwalk.h>
#include <linux/scatterlist.h>
+#include <linux/version.h>
#include "util.h"
/* These were taken from Maxim Levitsky's patch to lkml.
@@ -44,8 +45,12 @@ struct scatterlist *sg_advance(struct scatterlist *sg, int consumed)
sg->length -= consumed;
if (sg->offset >= PAGE_SIZE) {
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 18, 0))
+ struct page *page = sg_page(sg) + (sg->offset / PAGE_SIZE);
+#else
struct page *page =
nth_page(sg_page(sg), sg->offset / PAGE_SIZE);
+#endif
sg_set_page(sg, page, sg->length, sg->offset % PAGE_SIZE);
}