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ae49895cd2
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.42 Added backport to fix ipv6 breakage with the 6.12.42 release: generic/backport-6.12/621-proc-fix-missing-pde_set_flags.patch[1] All other patches automatically rebased. 1. https://lore.kernel.org/all/20250821105806.1453833-1-wangzijie1@honor.com Build system: x86/64 Build-tested: flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3, x86/64-glibc Run-tested: flogic/xiaomi_redmi-router-ax6000-ubootmod, ramips/tplink_archer-a6-v3, x86/64-glibc (Intel N150) Signed-off-by: John Audia <therealgraysky@proton.me> Link: https://github.com/openwrt/openwrt/pull/19618 Signed-off-by: Robert Marko <robimarko@gmail.com>
49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
From fe6b4d634c05842f00e766dcdb1511c180854036 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Mon, 22 May 2023 14:22:55 +0100
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Subject: [PATCH] pps: Compatibility hack should be X86-specific
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As of [1], using PPS_FETCH on a 64-bit ARM kernel with a 32-bit userland
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is broken, returning a timeout. This is because the requested 4-byte
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alignment for struct pps_ktime_compat (illegal on arm64) results in the
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timeout flags field being uninitialised.
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Make the hack specific to X86_64 builds with CONFIG_COMPAT defined.
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[1] commit c2a49fe8eeef ("pps: fix padding issue with PPS_FETCH for
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ioctl_compat")
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See: https://github.com/raspberrypi/linux/issues/5430
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Fixes: c2a49fe8eeef ("pps: fix padding issue with PPS_FETCH for ioctl_compat")
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/pps/pps.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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--- a/drivers/pps/pps.c
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+++ b/drivers/pps/pps.c
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@@ -254,12 +254,13 @@ static long pps_cdev_ioctl(struct file *
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static long pps_cdev_compat_ioctl(struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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- struct pps_device *pps = file->private_data;
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- void __user *uarg = (void __user *) arg;
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cmd = _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(void *));
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+#ifdef CONFIG_X86_64
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if (cmd == PPS_FETCH) {
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+ struct pps_device *pps = file->private_data;
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+ void __user *uarg = (void __user *) arg;
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struct pps_fdata_compat compat;
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struct pps_fdata fdata;
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int err;
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@@ -296,6 +297,7 @@ static long pps_cdev_compat_ioctl(struct
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return copy_to_user(uarg, &compat,
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sizeof(struct pps_fdata_compat)) ? -EFAULT : 0;
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}
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+#endif
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return pps_cdev_ioctl(file, cmd, arg);
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}
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