From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Nick Desaulniers <ndesaulniers@google.com>,
Ilie Halip <ilie.halip@gmail.com>, Will Deacon <will@kernel.org>
Subject: [PATCH 5.5 21/30] arm64: alternative: fix build with clang integrated assembler
Date: Wed, 1 Apr 2020 18:17:25 +0200 [thread overview]
Message-ID: <20200401161431.412236961@linuxfoundation.org> (raw)
In-Reply-To: <20200401161414.345528747@linuxfoundation.org>
From: Ilie Halip <ilie.halip@gmail.com>
commit 6f5459da2b8736720afdbd67c4bd2d1edba7d0e3 upstream.
Building an arm64 defconfig with clang's integrated assembler, this error
occurs:
<instantiation>:2:2: error: unrecognized instruction mnemonic
_ASM_EXTABLE 9999b, 9f
^
arch/arm64/mm/cache.S:50:1: note: while in macro instantiation
user_alt 9f, "dc cvau, x4", "dc civac, x4", 0
^
While GNU as seems fine with case-sensitive macro instantiations, clang
doesn't, so use the actual macro name (_asm_extable) as in the rest of
the file.
Also checked that the generated assembly matches the GCC output.
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Fixes: 290622efc76e ("arm64: fix "dc cvau" cache operation on errata-affected core")
Link: https://github.com/ClangBuiltLinux/linux/issues/924
Signed-off-by: Ilie Halip <ilie.halip@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm64/include/asm/alternative.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -221,7 +221,7 @@ alternative_endif
.macro user_alt, label, oldinstr, newinstr, cond
9999: alternative_insn "\oldinstr", "\newinstr", \cond
- _ASM_EXTABLE 9999b, \label
+ _asm_extable 9999b, \label
.endm
/*
next prev parent reply other threads:[~2020-04-01 16:20 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 16:17 [PATCH 5.5 00/30] 5.5.15-rc1 review Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 01/30] bpf: update jmp32 test cases to fix range bound deduction Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 02/30] mac80211: Check port authorization in the ieee80211_tx_dequeue() case Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 03/30] mac80211: fix authentication with iwlwifi/mvm Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 04/30] serial: sprd: Fix a dereference warning Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 05/30] vt: selection, introduce vc_is_sel Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 06/30] vt: ioctl, switch VT_IS_IN_USE and VT_BUSY to inlines Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 07/30] vt: switch vt_dont_switch to bool Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 08/30] vt: vt_ioctl: remove unnecessary console allocation checks Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 09/30] vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 10/30] vt: vt_ioctl: fix use-after-free in vt_in_use() Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 11/30] platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 12/30] bpf: Explicitly memset the bpf_attr structure Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 13/30] bpf: Explicitly memset some bpf info structures declared on the stack Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 14/30] iwlwifi: dont send GEO_TX_POWER_LIMIT if no wgds table Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 15/30] gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 16/30] net: ks8851-ml: Fix IO operations, again Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 17/30] clk: imx: Align imx sc clock msg structs to 4 Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 18/30] clk: imx: Align imx sc clock parent " Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 19/30] clk: ti: am43xx: Fix clock parent for RTC clock Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 20/30] libceph: fix alloc_msg_with_page_vector() memory leaks Greg Kroah-Hartman
2020-04-01 16:17 ` Greg Kroah-Hartman [this message]
2020-04-01 16:17 ` [PATCH 5.5 22/30] perf map: Fix off by one in strncpy() size argument Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 23/30] ARM: dts: oxnas: Fix clear-mask property Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 24/30] ARM: dts: bcm283x: Fix vc4s firmware bus DMA limitations Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 25/30] ARM: bcm2835-rpi-zero-w: Add missing pinctrl name Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 26/30] ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 27/30] ARM: dts: N900: fix onenand timings Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 28/30] ARM: dts: sun8i: r40: Move AHCI device node based on address order Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 29/30] arm64: dts: ls1043a-rdb: correct RGMII delay mode to rgmii-id Greg Kroah-Hartman
2020-04-01 16:17 ` [PATCH 5.5 30/30] arm64: dts: ls1046ardb: set RGMII interfaces to RGMII_ID mode Greg Kroah-Hartman
2020-04-02 0:13 ` [PATCH 5.5 00/30] 5.5.15-rc1 review Guenter Roeck
2020-04-02 7:10 ` Jon Hunter
2020-04-02 9:29 ` Naresh Kamboju
2020-04-02 16:45 ` shuah
2020-04-02 18:43 ` Greg Kroah-Hartman
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