On Sat, 16 Jan 2021 10:12:21 +0100 Jan Kiszka wrote:
> On 06.11.20 10:43, Wong Vee Khee wrote:
> > From: Voon Weifeng <weifeng.voon(a)intel.com>
> >
> > Set all EHL/TGL phy_addr to -1 so that the driver will automatically
> > detect it at run-time by probing all the possible 32 addresses.
> >
> > Signed-off-by: Voon Weifeng <weifeng.voon(a)intel.com>
> > Signed-off-by: Wong Vee Khee <vee.khee.wong(a)intel.com>
>
> This fixes PHY detection on one of our EHL-based boards. Can this also
> be applied to stable 5.10?
Sure.
Greg, we'd like to request a backport of the following commit to 5.10.
commit bff6f1db91e330d7fba56f815cdbc412c75fe163
Author: Voon Weifeng <weifeng.voon(a)intel.com>
Date: Fri Nov 6 17:43:41 2020 +0800
stmmac: intel: change all EHL/TGL to auto detect phy addr
Set all EHL/TGL phy_addr to -1 so that the driver will automatically
detect it at run-time by probing all the possible 32 addresses.
Signed-off-by: Voon Weifeng <weifeng.voon(a)intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong(a)intel.com>
Link: https://lore.kernel.org/r/20201106094341.4241-1-vee.khee.wong@intel.com
Signed-off-by: Jakub Kicinski <kuba(a)kernel.org>
It's relatively small, and Jan reports it makes his boards detect the
PHY. The change went in via -next and into Linus's tree during the 5.11
merge window.
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From dca5244d2f5b94f1809f0c02a549edf41ccd5493 Mon Sep 17 00:00:00 2001
From: Will Deacon <will(a)kernel.org>
Date: Tue, 12 Jan 2021 22:48:32 +0000
Subject: [PATCH] compiler.h: Raise minimum version of GCC to 5.1 for arm64
GCC versions >= 4.9 and < 5.1 have been shown to emit memory references
beyond the stack pointer, resulting in memory corruption if an interrupt
is taken after the stack pointer has been adjusted but before the
reference has been executed. This leads to subtle, infrequent data
corruption such as the EXT4 problems reported by Russell King at the
link below.
Life is too short for buggy compilers, so raise the minimum GCC version
required by arm64 to 5.1.
Reported-by: Russell King <linux(a)armlinux.org.uk>
Suggested-by: Arnd Bergmann <arnd(a)kernel.org>
Signed-off-by: Will Deacon <will(a)kernel.org>
Tested-by: Nathan Chancellor <natechancellor(a)gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers(a)google.com>
Reviewed-by: Nathan Chancellor <natechancellor(a)gmail.com>
Acked-by: Linus Torvalds <torvalds(a)linux-foundation.org>
Cc: <stable(a)vger.kernel.org>
Cc: Theodore Ts'o <tytso(a)mit.edu>
Cc: Florian Weimer <fweimer(a)redhat.com>
Cc: Peter Zijlstra <peterz(a)infradead.org>
Cc: Nick Desaulniers <ndesaulniers(a)google.com>
Link: https://lore.kernel.org/r/20210105154726.GD1551@shell.armlinux.org.uk
Link: https://lore.kernel.org/r/20210112224832.10980-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas(a)arm.com>
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 74c6c0486eed..555ab0fddbef 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -13,6 +13,12 @@
/* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 */
#if GCC_VERSION < 40900
# error Sorry, your version of GCC is too old - please use 4.9 or newer.
+#elif defined(CONFIG_ARM64) && GCC_VERSION < 50100
+/*
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
+ * https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
+ */
+# error Sorry, your version of GCC is too old - please use 5.1 or newer.
#endif
/*