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Date: Mon, 12 Feb 2007 20:37:35 +0300
From: Andrey Borzenkov <arvidjaar@...l.ru>
To: kbuild-devel@...ts.sourceforge.net
Cc: linux-kernel@...r.kernel.org
Subject: 2.6.20: Rebuild after trivial patch rebuilds way too much
Is not it too much fore a trivial two lines patch to a single file?
{pts/1}% stg import
~/patch/Re_2_6_20_rc6_libata_PATA_ATAPI_CDROM_is_not_working.patch
Importing
patch "Re_2_6_20_rc6_libata_PATA_ATAPI_CDROM_is_not_working.patch"... done
Now at patch "Re_2_6_20_rc6_libata_PATA_ATAPI_CDROM_is_not_working.patch"
{pts/1}% make -C ~/src/linux-git O=$HOME/build/linux-2.6.20
make: Entering directory `/home/bor/src/linux-git'
Using /home/bor/src/linux-git as source for kernel
GEN /home/bor/build/linux-2.6.20/Makefile
CHK include/linux/version.h
CHK include/linux/utsrelease.h
CHK include/linux/compile.h
UPD include/linux/compile.h
CC init/version.o
LD init/built-in.o
HOSTCC usr/gen_init_cpio
GEN usr/initramfs_data.cpio.gz
AS usr/initramfs_data.o
LD usr/built-in.o
LDS arch/i386/kernel/vsyscall.lds
AS arch/i386/kernel/vsyscall-int80.o
AS arch/i386/kernel/vsyscall-note.o
SYSCALL arch/i386/kernel/vsyscall-int80.so
AS arch/i386/kernel/vsyscall-sysenter.o
SYSCALL arch/i386/kernel/vsyscall-sysenter.so
AS arch/i386/kernel/vsyscall.o
SYSCALL arch/i386/kernel/vsyscall-syms.o
LD arch/i386/kernel/built-in.o
AS arch/i386/kernel/head.o
CC arch/i386/kernel/init_task.o
LDS arch/i386/kernel/vmlinux.lds
CC [M] drivers/ata/libata-core.o
/home/bor/src/linux-git/drivers/ata/libata-core.c: In
function ‘ata_pci_device_do_resume’:
/home/bor/src/linux-git/drivers/ata/libata-core.c:6228: warning: ignoring
return value of ‘pci_enable_device’, declared with attribute
warn_unused_result
LD [M] drivers/ata/libata.o
CONMK drivers/char/consolemap_deftbl.c
CC drivers/char/consolemap_deftbl.o
SHIPPED drivers/char/defkeymap.c
CC drivers/char/defkeymap.o
LD drivers/char/built-in.o
HOSTCC drivers/md/mktables
TABLE drivers/md/raid6tables.c
CC [M] drivers/md/raid6tables.o
UNROLL drivers/md/raid6int1.c
CC [M] drivers/md/raid6int1.o
UNROLL drivers/md/raid6int2.c
CC [M] drivers/md/raid6int2.o
UNROLL drivers/md/raid6int4.c
CC [M] drivers/md/raid6int4.o
UNROLL drivers/md/raid6int8.c
CC [M] drivers/md/raid6int8.o
UNROLL drivers/md/raid6int16.c
CC [M] drivers/md/raid6int16.o
UNROLL drivers/md/raid6int32.c
CC [M] drivers/md/raid6int32.o
UNROLL drivers/md/raid6altivec1.c
CC [M] drivers/md/raid6altivec1.o
UNROLL drivers/md/raid6altivec2.c
CC [M] drivers/md/raid6altivec2.o
UNROLL drivers/md/raid6altivec4.c
CC [M] drivers/md/raid6altivec4.o
UNROLL drivers/md/raid6altivec8.c
CC [M] drivers/md/raid6altivec8.o
LD [M] drivers/md/raid456.o
LD [M] drivers/md/md-mod.o
LD [M] drivers/md/dm-mod.o
LD [M] drivers/md/dm-multipath.o
LD [M] drivers/md/dm-snapshot.o
LD [M] drivers/md/dm-mirror.o
CC drivers/video/logo/logo.o
LOGO drivers/video/logo/logo_linux_mono.c
CC drivers/video/logo/logo_linux_mono.o
LOGO drivers/video/logo/logo_linux_vga16.c
CC drivers/video/logo/logo_linux_vga16.o
LOGO drivers/video/logo/logo_linux_clut224.c
CC drivers/video/logo/logo_linux_clut224.o
LD drivers/video/logo/built-in.o
LOGO drivers/video/logo/logo_superh_mono.c
LOGO drivers/video/logo/clut_vga16.c
LOGO drivers/video/logo/logo_superh_vga16.c
LOGO drivers/video/logo/logo_dec_clut224.c
LOGO drivers/video/logo/logo_m32r_clut224.c
LOGO drivers/video/logo/logo_mac_clut224.c
LOGO drivers/video/logo/logo_parisc_clut224.c
LOGO drivers/video/logo/logo_sgi_clut224.c
LOGO drivers/video/logo/logo_sun_clut224.c
LOGO drivers/video/logo/logo_superh_clut224.c
LD drivers/video/built-in.o
LD drivers/built-in.o
HOSTCC lib/gen_crc32table
GEN lib/crc32table.h
CC lib/crc32.o
LD lib/built-in.o
GEN .version
CHK include/linux/compile.h
UPD include/linux/compile.h
CC init/version.o
LD init/built-in.o
LD .tmp_vmlinux1
KSYM .tmp_kallsyms1.S
AS .tmp_kallsyms1.o
LD .tmp_vmlinux2
KSYM .tmp_kallsyms2.S
AS .tmp_kallsyms2.o
LD .tmp_vmlinux3
KSYM .tmp_kallsyms3.S
AS .tmp_kallsyms3.o
LD vmlinux
SYSMAP System.map
SYSMAP .tmp_System.map
MODPOST vmlinux
AS arch/i386/boot/bootsect.o
LD arch/i386/boot/bootsect
AS arch/i386/boot/setup.o
LD arch/i386/boot/setup
AS arch/i386/boot/compressed/head.o
CC arch/i386/boot/compressed/misc.o
OBJCOPY arch/i386/boot/compressed/vmlinux.bin
GZIP arch/i386/boot/compressed/vmlinux.bin.gz
LD arch/i386/boot/compressed/piggy.o
LD arch/i386/boot/compressed/vmlinux
OBJCOPY arch/i386/boot/vmlinux.bin
HOSTCC arch/i386/boot/tools/build
BUILD arch/i386/boot/bzImage
Root device is (8, 2)
Boot sector 512 bytes.
Setup is 7247 bytes.
System is 1334 kB
Kernel: arch/i386/boot/bzImage is ready (#15)
Building modules, stage 2.
MODPOST 435 modules
CC drivers/ata/libata.mod.o
LD [M] drivers/ata/libata.ko
LD [M] drivers/md/dm-mirror.ko
LD [M] drivers/md/dm-mod.ko
LD [M] drivers/md/dm-multipath.ko
LD [M] drivers/md/dm-snapshot.ko
LD [M] drivers/md/md-mod.ko
LD [M] drivers/md/raid456.ko
make: Leaving directory `/home/bor/src/linux-git'
{pts/1}% stg diff -r
Re_2_6_20_rc6_libata_PATA_ATAPI_CDROM_is_not_working.patch//bottom..Re_2_6_20_rc6_libata_PATA_ATAPI_CDROM_is_not_working.patch//top |
cat
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 667acd2..d6fcf0a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1478,7 +1478,16 @@ int ata_dev_read_id(struct ata_device *dev, unsigned
int *p_class,
}
tf.protocol = ATA_PROT_PIO;
- tf.flags |= ATA_TFLAG_POLLING; /* for polling presence detection */
+
+ /* Some devices choke if TF registers contain garbage. Make
+ * sure those are properly initialized.
+ */
+ tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+
+ /* Device presence detection is unreliable on some
+ * controllers. Always poll IDENTIFY if available.
+ */
+ tf.flags |= ATA_TFLAG_POLLING;
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
id, sizeof(id[0]) * ATA_ID_WORDS);
.config attached.
-andrey
View attachment ".config" of type "text/plain" (49508 bytes)
Content of type "application/pgp-signature" skipped
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