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c6ddf8d502
Many changes were done in drivers/pinctrl/bcm/pinctrl-bcm2835.c between
5.4.171 and 5.4.179.
The following 3 patches do not apply any more:
* target/linux/bcm27xx/patches-5.4/950-0316-pinctrl-bcm2835-Add-support-for-BCM2711-pull-up-func.patch
This was already integrated in kernel v5.4-rc1, it was never needed.
* target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch
* target/linux/bcm27xx/patches-5.4/950-0362-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch
I think these were done to fix the problem which was really fixed in
commit 75278f1aff5e ("pinctrl: bcm2835: Change init order for gpio
hogs") from v5.4.175
target/linux/generic/backport-5.4/716-v5.5-net-sfp-move-fwnode-parsing-into-sfp-bus-layer.patch
Move fwnode_device_is_available to the same position as in kernel 5.10.
target/linux/layerscape/patches-5.4/302-dts-0083-arm64-ls1028a-qds-correct-bus-of-rtc.patch
Applied in commit 65816c1034769e714edb70f59a33bc5472d9e55f ("arm64: dts:
ls1028a-qds: move rtc node to the correct i2c bus")
Compile-tested: lantiq/xrx200, bcm27xx/bcm2710
Run-tested: lantiq/xrx200
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
86 lines
2.2 KiB
Diff
86 lines
2.2 KiB
Diff
From 2b13c54592135b6fab269517ed687fa9f80bf8e5 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 27 Nov 2017 17:14:54 +0000
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Subject: [PATCH] cgroup: Disable cgroup "memory" by default
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Some Raspberry Pis have limited RAM and most users won't use the
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cgroup memory support so it is disabled by default. Enable with:
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cgroup_enable=memory
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See: https://github.com/raspberrypi/linux/issues/1950
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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kernel/cgroup/cgroup.c | 38 ++++++++++++++++++++++++++++++++++++++
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1 file changed, 38 insertions(+)
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--- a/kernel/cgroup/cgroup.c
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+++ b/kernel/cgroup/cgroup.c
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@@ -5749,6 +5749,9 @@ int __init cgroup_init_early(void)
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return 0;
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}
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+static u16 cgroup_enable_mask __initdata;
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+static int __init cgroup_disable(char *str);
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+
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/**
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* cgroup_init - cgroup initialization
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*
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@@ -5787,6 +5790,12 @@ int __init cgroup_init(void)
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mutex_unlock(&cgroup_mutex);
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+ /*
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+ * Apply an implicit disable, knowing that an explicit enable will
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+ * prevent if from doing anything.
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+ */
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+ cgroup_disable("memory");
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+
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for_each_subsys(ss, ssid) {
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if (ss->early_init) {
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struct cgroup_subsys_state *css =
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@@ -6196,6 +6205,10 @@ static int __init cgroup_disable(char *s
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strcmp(token, ss->legacy_name))
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continue;
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+ /* An explicit cgroup_enable overrides a disable */
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+ if (cgroup_enable_mask & (1 << i))
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+ continue;
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+
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static_branch_disable(cgroup_subsys_enabled_key[i]);
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pr_info("Disabling %s control group subsystem\n",
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ss->name);
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@@ -6205,6 +6218,31 @@ static int __init cgroup_disable(char *s
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}
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__setup("cgroup_disable=", cgroup_disable);
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+static int __init cgroup_enable(char *str)
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+{
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+ struct cgroup_subsys *ss;
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+ char *token;
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+ int i;
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+
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+ while ((token = strsep(&str, ",")) != NULL) {
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+ if (!*token)
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+ continue;
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+
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+ for_each_subsys(ss, i) {
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+ if (strcmp(token, ss->name) &&
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+ strcmp(token, ss->legacy_name))
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+ continue;
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+
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+ cgroup_enable_mask |= 1 << i;
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+ static_branch_enable(cgroup_subsys_enabled_key[i]);
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+ pr_info("Enabling %s control group subsystem\n",
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+ ss->name);
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+ }
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+ }
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+ return 1;
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+}
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+__setup("cgroup_enable=", cgroup_enable);
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+
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void __init __weak enable_debug_cgroup(void) { }
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static int __init enable_cgroup_debug(char *str)
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