https://bugzilla.kernel.org/show_bug.cgi?id=15920
Summary: Section mismatch in reference from the function
dmar_ir_support() to the variable .init.data:dmar_tbl
Product: ACPI
Version: 2.5
Kernel Version: 2.6.33.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Tables
AssignedTo: acpi_config-tab...@kernel-bugs.osdl.org
ReportedBy: daniso...@gmail.com
CC: daniso...@gmail.com
Regression: No
Latest working kernel version: N/A
Distribution: Gentoo
Hardware Environment: Toshiba Satellite L300-214
Software Environment:
gcc version 4.3.4 (Gentoo 4.3.4 p1.1, pie-10.1.5)
Binutils 2.18-r3
Grub (GNU GRUB 0.97)
Architecture: x86_64
Description:
During the build of kernel 2.6.33.2, I receive a section mismatch warning.
After
re-compiling with CONFIG_DEBUG_SECTION_MISMATCH=y, I get those 3 warnings:
CC drivers/pci/pci-acpi.o
LD drivers/pci/built-in.o
WARNING: drivers/pci/built-in.o(.text+0xf50d): Section mismatch in reference
from the function dmar_ir_support() to the variable .init.data:dmar_tbl
The function dmar_ir_support() references
the variable __initdata dmar_tbl.
This is often because dmar_ir_support lacks a __initdata
annotation or the annotation of dmar_tbl is wrong.
LD drivers/usb/storage/usb-storage.o
LD drivers/usb/storage/built-in.o
LD drivers/usb/built-in.o
LD drivers/built-in.o
WARNING: drivers/built-in.o(.text+0xf50d): Section mismatch in reference from
the function dmar_ir_support() to the variable .init.data:dmar_tbl
The function dmar_ir_support() references
the variable __initdata dmar_tbl.
This is often because dmar_ir_support lacks a __initdata
annotation or the annotation of dmar_tbl is wrong.
LD vmlinux.o
MODPOST vmlinux.o
WARNING: vmlinux.o(.text+0x28e8d5): Section mismatch in reference from the
function dmar_ir_support() to the variable .init.data:dmar_tbl
The function dmar_ir_support() references
the variable __initdata dmar_tbl.
This is often because dmar_ir_support lacks a __initdata
annotation or the annotation of dmar_tbl is wrong.
GEN .version
I did some googling and looks like there is a solution/workaround by modifying
dmar.c and intel-iommu.h as the attached url describes.
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