diff mbox

[v2] x86: Do not set the root_dev field in bzImage

Message ID 1302607824-24699-1-git-send-email-mmarek@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Michal Marek April 12, 2011, 11:30 a.m. UTC 
This has been obsoleted by the root= commandline for several years.
People who still depend on this will surely have a copy of the rdev
command around, the rest of the world gets rid of another piece of
buildhost-dependent data in the build. Thanks to Paul Bolle for the
build.c cleanup.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Marek <mmarek@suse.cz>

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Comments

Michal Marek May 11, 2011, 3:22 p.m. UTC | #1 
On 12.4.2011 13:30, Michal Marek wrote:
> This has been obsoleted by the root= commandline for several years.
> People who still depend on this will surely have a copy of the rdev
> command around, the rest of the world gets rid of another piece of
> buildhost-dependent data in the build. Thanks to Paul Bolle for the
> build.c cleanup.
>
> Cc: Thomas Gleixner<tglx@linutronix.de>
> Cc: Ingo Molnar<mingo@redhat.com>
> Cc: "H. Peter Anvin"<hpa@zytor.com>
> Cc: x86@kernel.org
> Cc: Paul Bolle<pebolle@tiscali.nl>
> Signed-off-by: Michal Marek<mmarek@suse.cz>

Hi,

Is this patch OK for the tip tree?

Michal

>
> diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
> index f7cb086..95365a8 100644
> --- a/arch/x86/boot/Makefile
> +++ b/arch/x86/boot/Makefile
> @@ -9,12 +9,6 @@
>   # Changed by many, many contributors over the years.
>   #
>
> -# ROOT_DEV specifies the default root-device when making the image.
> -# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
> -# the default of FLOPPY is used by 'build'.
> -
> -ROOT_DEV	:= CURRENT
> -
>   # If you want to preset the SVGA mode, uncomment the next line and
>   # set SVGA_MODE to whatever number you want.
>   # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
> @@ -75,8 +69,7 @@ GCOV_PROFILE := n
>   $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
>
>   quiet_cmd_image = BUILD   $@
> -cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
> -	$(ROOT_DEV)>  $@
> +cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin>  $@
>
>   $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
>   	$(call if_changed,image)
> diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
> index ee3a4ea..fdc60a0 100644
> --- a/arch/x86/boot/tools/build.c
> +++ b/arch/x86/boot/tools/build.c
> @@ -130,7 +130,7 @@ static void die(const char * str, ...)
>
>   static void usage(void)
>   {
> -	die("Usage: build setup system [rootdev] [>  image]");
> +	die("Usage: build setup system [>  image]");
>   }
>
>   int main(int argc, char ** argv)
> @@ -138,39 +138,14 @@ int main(int argc, char ** argv)
>   	unsigned int i, sz, setup_sectors;
>   	int c;
>   	u32 sys_size;
> -	u8 major_root, minor_root;
>   	struct stat sb;
>   	FILE *file;
>   	int fd;
>   	void *kernel;
>   	u32 crc = 0xffffffffUL;
>
> -	if ((argc<  3) || (argc>  4))
> +	if (argc != 3)
>   		usage();
> -	if (argc>  3) {
> -		if (!strcmp(argv[3], "CURRENT")) {
> -			if (stat("/",&sb)) {
> -				perror("/");
> -				die("Couldn't stat /");
> -			}
> -			major_root = major(sb.st_dev);
> -			minor_root = minor(sb.st_dev);
> -		} else if (strcmp(argv[3], "FLOPPY")) {
> -			if (stat(argv[3],&sb)) {
> -				perror(argv[3]);
> -				die("Couldn't stat root device.");
> -			}
> -			major_root = major(sb.st_rdev);
> -			minor_root = minor(sb.st_rdev);
> -		} else {
> -			major_root = 0;
> -			minor_root = 0;
> -		}
> -	} else {
> -		major_root = DEFAULT_MAJOR_ROOT;
> -		minor_root = DEFAULT_MINOR_ROOT;
> -	}
> -	fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
>
>   	/* Copy the setup code */
>   	file = fopen(argv[1], "r");
> @@ -193,8 +168,8 @@ int main(int argc, char ** argv)
>   	memset(buf+c, 0, i-c);
>
>   	/* Set the default root device */
> -	buf[508] = minor_root;
> -	buf[509] = major_root;
> +	buf[508] = DEFAULT_MINOR_ROOT;
> +	buf[509] = DEFAULT_MAJOR_ROOT;
>
>   	fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i);
>
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Michal Marek May 25, 2011, 8:32 p.m. UTC | #2 
Dne 11.5.2011 17:22, Michal Marek napsal(a):
> On 12.4.2011 13:30, Michal Marek wrote:
>> This has been obsoleted by the root= commandline for several years.
>> People who still depend on this will surely have a copy of the rdev
>> command around, the rest of the world gets rid of another piece of
>> buildhost-dependent data in the build. Thanks to Paul Bolle for the
>> build.c cleanup.
>>
>> Cc: Thomas Gleixner<tglx@linutronix.de>
>> Cc: Ingo Molnar<mingo@redhat.com>
>> Cc: "H. Peter Anvin"<hpa@zytor.com>
>> Cc: x86@kernel.org
>> Cc: Paul Bolle<pebolle@tiscali.nl>
>> Signed-off-by: Michal Marek<mmarek@suse.cz>
> 
> Hi,
> 
> Is this patch OK for the tip tree?

Hi,

I don't see the patch in today's linux-next. Can I get an Acked-by: to
apply it to kbuild-2.6.git or can someone apply it to the tip tree?
Thanks a lot.

Michal
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diff mbox

Patch

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index f7cb086..95365a8 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -9,12 +9,6 @@ 
 # Changed by many, many contributors over the years.
 #
 
-# ROOT_DEV specifies the default root-device when making the image.
-# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
-# the default of FLOPPY is used by 'build'.
-
-ROOT_DEV	:= CURRENT
-
 # If you want to preset the SVGA mode, uncomment the next line and
 # set SVGA_MODE to whatever number you want.
 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
@@ -75,8 +69,7 @@  GCOV_PROFILE := n
 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
 
 quiet_cmd_image = BUILD   $@
-cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
-	$(ROOT_DEV) > $@
+cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin > $@
 
 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
 	$(call if_changed,image)
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index ee3a4ea..fdc60a0 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -130,7 +130,7 @@  static void die(const char * str, ...)
 
 static void usage(void)
 {
-	die("Usage: build setup system [rootdev] [> image]");
+	die("Usage: build setup system [> image]");
 }
 
 int main(int argc, char ** argv)
@@ -138,39 +138,14 @@  int main(int argc, char ** argv)
 	unsigned int i, sz, setup_sectors;
 	int c;
 	u32 sys_size;
-	u8 major_root, minor_root;
 	struct stat sb;
 	FILE *file;
 	int fd;
 	void *kernel;
 	u32 crc = 0xffffffffUL;
 
-	if ((argc < 3) || (argc > 4))
+	if (argc != 3)
 		usage();
-	if (argc > 3) {
-		if (!strcmp(argv[3], "CURRENT")) {
-			if (stat("/", &sb)) {
-				perror("/");
-				die("Couldn't stat /");
-			}
-			major_root = major(sb.st_dev);
-			minor_root = minor(sb.st_dev);
-		} else if (strcmp(argv[3], "FLOPPY")) {
-			if (stat(argv[3], &sb)) {
-				perror(argv[3]);
-				die("Couldn't stat root device.");
-			}
-			major_root = major(sb.st_rdev);
-			minor_root = minor(sb.st_rdev);
-		} else {
-			major_root = 0;
-			minor_root = 0;
-		}
-	} else {
-		major_root = DEFAULT_MAJOR_ROOT;
-		minor_root = DEFAULT_MINOR_ROOT;
-	}
-	fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
 
 	/* Copy the setup code */
 	file = fopen(argv[1], "r");
@@ -193,8 +168,8 @@  int main(int argc, char ** argv)
 	memset(buf+c, 0, i-c);
 
 	/* Set the default root device */
-	buf[508] = minor_root;
-	buf[509] = major_root;
+	buf[508] = DEFAULT_MINOR_ROOT;
+	buf[509] = DEFAULT_MAJOR_ROOT;
 
 	fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i);