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* + reboot-fix-variable-assignments-in-type_store.patch added to -mm tree
@ 2020-11-12 23:13 akpm
  0 siblings, 0 replies; only message in thread
From: akpm @ 2020-11-12 23:13 UTC (permalink / raw)
  To: mcroce, mm-commits, natechancellor


The patch titled
     Subject: reboot: fix variable assignments in type_store
has been added to the -mm tree.  Its filename is
     reboot-fix-variable-assignments-in-type_store.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/reboot-fix-variable-assignments-in-type_store.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/reboot-fix-variable-assignments-in-type_store.patch

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------------------------------------------------------
From: Nathan Chancellor <natechancellor@gmail.com>
Subject: reboot: fix variable assignments in type_store

Clang warns:

kernel/reboot.c:707:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_TRIPLE;
                            ~ ^~~~~~~~~~~
kernel/reboot.c:709:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_KBD;
                            ~ ^~~~~~~~
kernel/reboot.c:711:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_BIOS;
                            ~ ^~~~~~~~~
kernel/reboot.c:713:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_ACPI;
                            ~ ^~~~~~~~~
kernel/reboot.c:715:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_EFI;
                            ~ ^~~~~~~~
kernel/reboot.c:717:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_CF9_FORCE;
                            ~ ^~~~~~~~~~~~~~
kernel/reboot.c:719:17: warning: implicit conversion from enumeration
type 'enum reboot_type' to different enumeration type 'enum reboot_mode'
[-Wenum-conversion]
                reboot_mode = BOOT_CF9_SAFE;
                            ~ ^~~~~~~~~~~~~
7 warnings generated.

It seems that these assignment should be to reboot_type, not
reboot_mode. Fix it so there are no more warnings and the code works
properly.

Link: https://lkml.kernel.org/r/20201112035023.974748-1-natechancellor@gmail.com
Fixes: eab8da48579d ("reboot: allow to specify reboot mode via sysfs")
Link: https://github.com/ClangBuiltLinux/linux/issues/1197
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Matteo Croce <mcroce@linux.microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/reboot.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/kernel/reboot.c~reboot-fix-variable-assignments-in-type_store
+++ a/kernel/reboot.c
@@ -704,19 +704,19 @@ static ssize_t type_store(struct kobject
 		return -EPERM;
 
 	if (!strncmp(buf, BOOT_TRIPLE_STR, strlen(BOOT_TRIPLE_STR)))
-		reboot_mode = BOOT_TRIPLE;
+		reboot_type = BOOT_TRIPLE;
 	else if (!strncmp(buf, BOOT_KBD_STR, strlen(BOOT_KBD_STR)))
-		reboot_mode = BOOT_KBD;
+		reboot_type = BOOT_KBD;
 	else if (!strncmp(buf, BOOT_BIOS_STR, strlen(BOOT_BIOS_STR)))
-		reboot_mode = BOOT_BIOS;
+		reboot_type = BOOT_BIOS;
 	else if (!strncmp(buf, BOOT_ACPI_STR, strlen(BOOT_ACPI_STR)))
-		reboot_mode = BOOT_ACPI;
+		reboot_type = BOOT_ACPI;
 	else if (!strncmp(buf, BOOT_EFI_STR, strlen(BOOT_EFI_STR)))
-		reboot_mode = BOOT_EFI;
+		reboot_type = BOOT_EFI;
 	else if (!strncmp(buf, BOOT_CF9_FORCE_STR, strlen(BOOT_CF9_FORCE_STR)))
-		reboot_mode = BOOT_CF9_FORCE;
+		reboot_type = BOOT_CF9_FORCE;
 	else if (!strncmp(buf, BOOT_CF9_SAFE_STR, strlen(BOOT_CF9_SAFE_STR)))
-		reboot_mode = BOOT_CF9_SAFE;
+		reboot_type = BOOT_CF9_SAFE;
 	else
 		return -EINVAL;
 
_

Patches currently in -mm which might be from natechancellor@gmail.com are

reboot-fix-variable-assignments-in-type_store.patch
treewide-remove-stringification-from-__alias-macro-definition-fix.patch


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2020-11-12 23:13 + reboot-fix-variable-assignments-in-type_store.patch added to -mm tree akpm

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