linux-kernel - [PATCH v2 12/24] asm-generic: Remove COMMAND_LINE

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Date:   Sat, 10 Dec 2022 22:13:46 -0800
From:   Palmer Dabbelt <palmer@...osinc.com>
To:     Arnd Bergmann <arnd@...db.de>, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Palmer Dabbelt <palmer@...osinc.com>
Subject: [PATCH v2 12/24] asm-generic: Remove COMMAND_LINE_SIZE from uapi

From: Palmer Dabbelt <palmerdabbelt@...gle.com>

As far as I can tell this is not used by userspace and thus should not
be part of the user-visible API.  Since <uapi/asm-generic/setup.h> only
contains COMMAND_LINE_SIZE we can just move it out of uapi to hide the
definition and fix up the only direct use in Loongarch.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
Link: https://lore.kernel.org/r/20210423025545.313965-1-palmer@dabbelt.com
Signed-off-by: Palmer Dabbelt <palmer@...osinc.com>
---
The various empty <uapi/asm/setup.h> will soon be removed.
---
 Documentation/admin-guide/kernel-parameters.rst | 2 +-
 arch/loongarch/include/asm/setup.h              | 2 +-
 include/{uapi => }/asm-generic/setup.h          | 0
 include/uapi/asm-generic/Kbuild                 | 1 -
 4 files changed, 2 insertions(+), 3 deletions(-)
 rename include/{uapi => }/asm-generic/setup.h (100%)

diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index 959f73a32712..3ba84ef68c4d 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -208,7 +208,7 @@ The number of kernel parameters is not limited, but the length of the
 complete command line (parameters including spaces etc.) is limited to
 a fixed number of characters. This limit depends on the architecture
 and is between 256 and 4096 characters. It is defined in the file
-./include/uapi/asm-generic/setup.h as COMMAND_LINE_SIZE.
+./include/asm-generic/setup.h as COMMAND_LINE_SIZE.
 
 Finally, the [KMG] suffix is commonly described after a number of kernel
 parameter values. These 'K', 'M', and 'G' letters represent the _binary_
diff --git a/arch/loongarch/include/asm/setup.h b/arch/loongarch/include/asm/setup.h
index ca373f8e3c4d..7a2afc95cc25 100644
--- a/arch/loongarch/include/asm/setup.h
+++ b/arch/loongarch/include/asm/setup.h
@@ -7,7 +7,7 @@
 #define _LOONGARCH_SETUP_H
 
 #include <linux/types.h>
-#include <uapi/asm/setup.h>
+#include <asm-generic/setup.h>
 
 #define VECSIZE 0x200
 
diff --git a/include/uapi/asm-generic/setup.h b/include/asm-generic/setup.h
similarity index 100%
rename from include/uapi/asm-generic/setup.h
rename to include/asm-generic/setup.h
diff --git a/include/uapi/asm-generic/Kbuild b/include/uapi/asm-generic/Kbuild
index ebb180aac74e..0e7122339ee9 100644
--- a/include/uapi/asm-generic/Kbuild
+++ b/include/uapi/asm-generic/Kbuild
@@ -20,7 +20,6 @@ mandatory-y += posix_types.h
 mandatory-y += ptrace.h
 mandatory-y += resource.h
 mandatory-y += sembuf.h
-mandatory-y += setup.h
 mandatory-y += shmbuf.h
 mandatory-y += sigcontext.h
 mandatory-y += siginfo.h
-- 
2.38.1