[Buildroot] [PATCH 1/1] package/igh-ethercat: fix build with kernel >= 6.15

[Buildroot] [PATCH 1/1] package/igh-ethercat: fix build with kernel >= 6.15

[Bernd Kuhls]

Buildroot commit c6e914819774212e79be19f62706f653b9646f11 bumped the
package from 1.6.3 to 1.6.8. The previous version 1.6.3 failed to build
with kernel >= 6.15 as seen here:
https://autobuild.buildroot.net/results/7f4/7f4b3e632a5de67dec2624a2097045ec4d767246/
"examples/mini/mini.c:528:5: error: implicit declaration of function
 ‘del_timer_sync’ [-Wimplicit-function-declaration]
  528 |     del_timer_sync(&timer);"

The bump to 1.6.8 includes a commit which fixes the problem:
https://gitlab.com/etherlab.org/ethercat/-/commit/240080f11062cca42f9132cd32fad3b993502665

but it only masked other build errors which were found by the
autobuilders:
https://autobuild.buildroot.net/results/1a5/1a546ee2217e7843b852a5b79b477ef23df6a064/
"examples/tty/tty.c:236:5: error: implicit declaration of function
 'del_timer_sync' [-Wimplicit-function-declaration]
  236 |     del_timer_sync(&timer);"

which need similar fixes.

Fixes:
https://autobuild.buildroot.net/results/0ba/0ba7163e5012309d3a31aa7186ca95a9d5c8de69/

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
 ...new-timer-interface-since-kernel-6.1.patch | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch

diff --git a/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch b/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch
new file mode 100644
index 0000000000..5e568eaba9
--- /dev/null
+++ b/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch
@@ -0,0 +1,63 @@
+From e32e99f8b8ec02a340ad3b93cc8abd36781ff568 Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Sun, 15 Mar 2026 20:06:42 +0100
+Subject: [PATCH] tty: Implemented new timer interface since kernel 6.15
+
+Upstream: https://gitlab.com/etherlab.org/ethercat/-/merge_requests/187
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ examples/tty/tty.c | 4 ++++
+ tty/module.c       | 8 ++++++++
+ 2 files changed, 12 insertions(+)
+
+diff --git a/examples/tty/tty.c b/examples/tty/tty.c
+index 4d47a49..e5b4d52 100644
+--- a/examples/tty/tty.c
++++ b/examples/tty/tty.c
+@@ -233,7 +233,11 @@ static void __exit cleanup_mini_module(void)
+ {
+     printk(KERN_INFO PFX "Stopping...\n");
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
++    timer_delete_sync(&timer);
++#else
+     del_timer_sync(&timer);
++#endif
+ 
+     free_serial_devices();
+ 
+diff --git a/tty/module.c b/tty/module.c
+index 2b7b22b..12ad1e7 100644
+--- a/tty/module.c
++++ b/tty/module.c
+@@ -292,7 +292,11 @@ static int ec_tty_init(ec_tty_t *t, int minor,
+ 
+ static void ec_tty_clear(ec_tty_t *tty)
+ {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
++    timer_delete_sync(&tty->timer);
++#else
+     del_timer_sync(&tty->timer);
++#endif
+     tty_unregister_device(tty_driver, tty->minor);
+ }
+ 
+@@ -367,10 +371,14 @@ static void ec_tty_wakeup(struct timer_list *t)
+ static void ec_tty_wakeup(unsigned long data)
+ #endif
+ {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
++    ec_tty_t *tty = timer_container_of(tty, t, timer);
++#else
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)
+     ec_tty_t *tty = from_timer(tty, t, timer);
+ #else
+     ec_tty_t *tty = (ec_tty_t *) data;
++#endif
+ #endif
+     size_t to_recv;
+ 
+-- 
+2.47.3
+
-- 
2.47.3

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Re: [Buildroot] [PATCH 1/1] package/igh-ethercat: fix build with kernel >= 6.15

[Julien Olivain via buildroot]

On 15/03/2026 20:17, Bernd Kuhls wrote:
> Buildroot commit c6e914819774212e79be19f62706f653b9646f11 bumped the
> package from 1.6.3 to 1.6.8. The previous version 1.6.3 failed to build
> with kernel >= 6.15 as seen here:
> https://autobuild.buildroot.net/results/7f4/7f4b3e632a5de67dec2624a2097045ec4d767246/
> "examples/mini/mini.c:528:5: error: implicit declaration of function
>  ‘del_timer_sync’ [-Wimplicit-function-declaration]
>   528 |     del_timer_sync(&timer);"
> 
> The bump to 1.6.8 includes a commit which fixes the problem:
> https://gitlab.com/etherlab.org/ethercat/-/commit/240080f11062cca42f9132cd32fad3b993502665
> 
> but it only masked other build errors which were found by the
> autobuilders:
> https://autobuild.buildroot.net/results/1a5/1a546ee2217e7843b852a5b79b477ef23df6a064/
> "examples/tty/tty.c:236:5: error: implicit declaration of function
>  'del_timer_sync' [-Wimplicit-function-declaration]
>   236 |     del_timer_sync(&timer);"
> 
> which need similar fixes.
> 
> Fixes:
> https://autobuild.buildroot.net/results/0ba/0ba7163e5012309d3a31aa7186ca95a9d5c8de69/
> 
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

Applied to master, thanks.
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Re: [Buildroot] [PATCH 1/1] package/igh-ethercat: fix build with kernel >= 6.15

[Thomas Perale via buildroot]

In reply of:
> Buildroot commit c6e914819774212e79be19f62706f653b9646f11 bumped the
> package from 1.6.3 to 1.6.8. The previous version 1.6.3 failed to build
> with kernel >= 6.15 as seen here:
> https://autobuild.buildroot.net/results/7f4/7f4b3e632a5de67dec2624a2097045ec4d767246/
> "examples/mini/mini.c:528:5: error: implicit declaration of function
>  ‘del_timer_sync’ [-Wimplicit-function-declaration]
>   528 |     del_timer_sync(&timer);"
> 
> The bump to 1.6.8 includes a commit which fixes the problem:
> https://gitlab.com/etherlab.org/ethercat/-/commit/240080f11062cca42f9132cd32fad3b993502665
> 
> but it only masked other build errors which were found by the
> autobuilders:
> https://autobuild.buildroot.net/results/1a5/1a546ee2217e7843b852a5b79b477ef23df6a064/
> "examples/tty/tty.c:236:5: error: implicit declaration of function
>  'del_timer_sync' [-Wimplicit-function-declaration]
>   236 |     del_timer_sync(&timer);"
> 
> which need similar fixes.
> 
> Fixes:
> https://autobuild.buildroot.net/results/0ba/0ba7163e5012309d3a31aa7186ca95a9d5c8de69/
> 
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

Applied to 2026.02.x. Thanks

> ---
>  ...new-timer-interface-since-kernel-6.1.patch | 63 +++++++++++++++++++
>  1 file changed, 63 insertions(+)
>  create mode 100644 package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch
> 
> diff --git a/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch b/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch
> new file mode 100644
> index 0000000000..5e568eaba9
> --- /dev/null
> +++ b/package/igh-ethercat/0001-tty-Implemented-new-timer-interface-since-kernel-6.1.patch
> @@ -0,0 +1,63 @@
> +From e32e99f8b8ec02a340ad3b93cc8abd36781ff568 Mon Sep 17 00:00:00 2001
> +From: Bernd Kuhls <bernd@kuhls.net>
> +Date: Sun, 15 Mar 2026 20:06:42 +0100
> +Subject: [PATCH] tty: Implemented new timer interface since kernel 6.15
> +
> +Upstream: https://gitlab.com/etherlab.org/ethercat/-/merge_requests/187
> +
> +Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
> +---
> + examples/tty/tty.c | 4 ++++
> + tty/module.c       | 8 ++++++++
> + 2 files changed, 12 insertions(+)
> +
> +diff --git a/examples/tty/tty.c b/examples/tty/tty.c
> +index 4d47a49..e5b4d52 100644
> +--- a/examples/tty/tty.c
> ++++ b/examples/tty/tty.c
> +@@ -233,7 +233,11 @@ static void __exit cleanup_mini_module(void)
> + {
> +     printk(KERN_INFO PFX "Stopping...\n");
> + 
> ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
> ++    timer_delete_sync(&timer);
> ++#else
> +     del_timer_sync(&timer);
> ++#endif
> + 
> +     free_serial_devices();
> + 
> +diff --git a/tty/module.c b/tty/module.c
> +index 2b7b22b..12ad1e7 100644
> +--- a/tty/module.c
> ++++ b/tty/module.c
> +@@ -292,7 +292,11 @@ static int ec_tty_init(ec_tty_t *t, int minor,
> + 
> + static void ec_tty_clear(ec_tty_t *tty)
> + {
> ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
> ++    timer_delete_sync(&tty->timer);
> ++#else
> +     del_timer_sync(&tty->timer);
> ++#endif
> +     tty_unregister_device(tty_driver, tty->minor);
> + }
> + 
> +@@ -367,10 +371,14 @@ static void ec_tty_wakeup(struct timer_list *t)
> + static void ec_tty_wakeup(unsigned long data)
> + #endif
> + {
> ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 15, 0)
> ++    ec_tty_t *tty = timer_container_of(tty, t, timer);
> ++#else
> + #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0)
> +     ec_tty_t *tty = from_timer(tty, t, timer);
> + #else
> +     ec_tty_t *tty = (ec_tty_t *) data;
> ++#endif
> + #endif
> +     size_t to_recv;
> + 
> +-- 
> +2.47.3
> +
> -- 
> 2.47.3
> 
> _______________________________________________
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