linux-kernel - [PATCH v2] UML: pata_cs5536: fix build for X86

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Message-Id: <20230312235553.26298-1-rdunlap@infradead.org>
Date:   Sun, 12 Mar 2023 16:55:53 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Johannes Berg <johannes@...solutions.net>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        linux-ide@...r.kernel.org, linux-um@...ts.infradead.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2] UML: pata_cs5536: fix build for X86_32 UML with TRACEPOINTS

Current build of pata_cs5536 for i386 UML fails with:

ERROR: modpost: "__tracepoint_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "do_trace_write_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "__tracepoint_read_msr" [drivers/ata/pata_cs5536.ko] undefined!
ERROR: modpost: "do_trace_read_msr" [drivers/ata/pata_cs5536.ko] undefined!

Add the arch/x86/lib/msr.o binary to resolve these undefined symbols.

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Richard Weinberger <richard@....at>
Cc: Anton Ivanov <anton.ivanov@...bridgegreys.com>
Cc: Johannes Berg <johannes@...solutions.net>
Cc: Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Cc: linux-ide@...r.kernel.org
Cc: linux-um@...ts.infradead.org
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 arch/x86/um/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/arch/x86/um/Makefile b/arch/x86/um/Makefile
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -21,7 +21,7 @@ obj-y += checksum_32.o syscalls_32.o
 obj-$(CONFIG_ELF_CORE) += elfcore.o
 
 subarch-y = ../lib/string_32.o ../lib/atomic64_32.o ../lib/atomic64_cx8_32.o
-subarch-y += ../lib/cmpxchg8b_emu.o ../lib/atomic64_386_32.o
+subarch-y += ../lib/cmpxchg8b_emu.o ../lib/atomic64_386_32.o ../lib/msr.o
 subarch-y += ../kernel/sys_ia32.o
 
 else