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This commit is contained in:
Tobias Powalowski
parent
34556ff157
commit
2f060fdc4b
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@ -1,70 +0,0 @@
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From de26859dcf363d520cc44e59f6dcaf20ebe0aadf Mon Sep 17 00:00:00 2001
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From: Larry Finger <Larry.Finger@lwfinger.net>
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Date: Sat, 21 May 2016 11:50:35 -0500
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Subject: rtlwifi: Fix scheduling while atomic error from commit 49f86ec21c01
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Commit 49f86ec21c01 ("rtlwifi: Change long delays to sleeps") was correct
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for most cases; however, driver rtl8192ce calls the affected routines while
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in atomic context. The kernel bug output is as follows:
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BUG: scheduling while atomic: wpa_supplicant/627/0x00000002
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[...]
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[<ffffffff815c2b39>] __schedule+0x899/0xad0
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[<ffffffff815c2dac>] schedule+0x3c/0x90
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[<ffffffff815c5bb2>] schedule_hrtimeout_range_clock+0xa2/0x120
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[<ffffffff810e8b80>] ? hrtimer_init+0x120/0x120
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[<ffffffff815c5ba6>] ? schedule_hrtimeout_range_clock+0x96/0x120
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[<ffffffff815c5c43>] schedule_hrtimeout_range+0x13/0x20
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[<ffffffff815c568f>] usleep_range+0x4f/0x70
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[<ffffffffa0667218>] rtl_rfreg_delay+0x38/0x50 [rtlwifi]
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[<ffffffffa06dd0e7>] rtl92c_phy_config_rf_with_headerfile+0xc7/0xe0 [rtl8192ce]
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To fix this bug, three of the changes from delay to sleep are reverted.
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Unfortunately, one of the changes involves a delay of 50 msec. The calling
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code will be modified so that this long delay can be avoided; however,
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this change is being pushed now to fix the problem in kernel 4.6.0.
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Fixes: 49f86ec21c01 ("rtlwifi: Change long delays to sleeps")
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Reported-by: James Feeney <james@nurealm.net>
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Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
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Cc: James Feeney <james@nurealm.net>
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Cc: Stable <stable@vger.kernel.org> [4.6+]
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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drivers/net/wireless/realtek/rtlwifi/core.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
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index 0f48048..3a0faa8 100644
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--- a/drivers/net/wireless/realtek/rtlwifi/core.c
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+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
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@@ -54,7 +54,7 @@ EXPORT_SYMBOL(channel5g_80m);
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void rtl_addr_delay(u32 addr)
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{
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if (addr == 0xfe)
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- msleep(50);
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+ mdelay(50);
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else if (addr == 0xfd)
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msleep(5);
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else if (addr == 0xfc)
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@@ -75,7 +75,7 @@ void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
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rtl_addr_delay(addr);
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} else {
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rtl_set_rfreg(hw, rfpath, addr, mask, data);
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- usleep_range(1, 2);
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+ udelay(1);
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}
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}
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EXPORT_SYMBOL(rtl_rfreg_delay);
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@@ -86,7 +86,7 @@ void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
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rtl_addr_delay(addr);
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} else {
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rtl_set_bbreg(hw, addr, MASKDWORD, data);
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- usleep_range(1, 2);
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+ udelay(1);
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}
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}
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EXPORT_SYMBOL(rtl_bb_delay);
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--
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cgit v0.12
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14
PKGBUILD
14
PKGBUILD
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@ -4,7 +4,7 @@
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pkgbase=linux # Build stock -ARCH kernel
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#pkgbase=linux-custom # Build kernel with a different name
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_srcname=linux-4.6
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pkgver=4.6.4
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pkgver=4.6.5
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pkgrel=1
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arch=('i686' 'x86_64')
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url="http://www.kernel.org/"
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@ -19,18 +19,16 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
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'config' 'config.x86_64'
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# standard config files for mkinitcpio ramdisk
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'linux.preset'
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'change-default-console-loglevel.patch'
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'0001-linux-4.6-rtlwifi-fix-atomic.patch')
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'change-default-console-loglevel.patch')
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sha256sums=('a93771cd5a8ad27798f22e9240538dfea48d3a2bf2a6a6ab415de3f02d25d866'
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'SKIP'
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'f500a3b841c41420914938d681e258c712fbbd7ebec5fe70f0abc071a1738e47'
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'857df33f085a0116b9d2322ffe3b23d5b7d8c4898427d79f68108a653e84910c'
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'SKIP'
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'02e8b02e8cd10aa059917a489a9663e7f66bdf12c5ae8a1e0369bb2862da6b68'
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'd59014b8f887c6aa9488ef5ff9bc5d4357850a979f3ff90a2999bbe24e5c6e15'
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'f0d90e756f14533ee67afda280500511a62465b4f76adcc5effa95a40045179c'
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'1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
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'ae0d16e81a915fae130125ba9d0b6fd2427e06f50b8b9514abc4029efe61ee98')
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'1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99')
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validpgpkeys=(
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'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
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'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
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@ -52,10 +50,6 @@ prepare() {
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# (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
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patch -p1 -i "${srcdir}/change-default-console-loglevel.patch"
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# fix rtlwifi atomic
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# https://bugs.archlinux.org/task/49401
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patch -p1 -i "${srcdir}/0001-linux-4.6-rtlwifi-fix-atomic.patch"
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if [ "${CARCH}" = "x86_64" ]; then
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cat "${srcdir}/config.x86_64" > ./.config
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else
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