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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-07 09:18:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-07 09:18:12 -0700 |
| commit | 0968621917add2e0d60c8fbc4e24c670cb14319c (patch) | |
| tree | 79fc122606717ebcf0bbc8b2a986f2a0999a9c61 /include/linux/printk.h | |
| parent | 573de2a6e844cb230c4483833f29b8344a6a17cc (diff) | |
| parent | 0f46c78391e1348fe45af86a0cd52795726695af (diff) | |
| download | blackbird-op-linux-0968621917add2e0d60c8fbc4e24c670cb14319c.tar.gz blackbird-op-linux-0968621917add2e0d60c8fbc4e24c670cb14319c.zip | |
Merge tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Allow state reset of printk_once() calls.
- Prevent crashes when dereferencing invalid pointers in vsprintf().
Only the first byte is checked for simplicity.
- Make vsprintf warnings consistent and inlined.
- Treewide conversion of obsolete %pf, %pF to %ps, %pF printf
modifiers.
- Some clean up of vsprintf and test_printf code.
* tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
lib/vsprintf: Make function pointer_string static
vsprintf: Limit the length of inlined error messages
vsprintf: Avoid confusion between invalid address and value
vsprintf: Prevent crash when dereferencing invalid pointers
vsprintf: Consolidate handling of unknown pointer specifiers
vsprintf: Factor out %pO handler as kobject_string()
vsprintf: Factor out %pV handler as va_format()
vsprintf: Factor out %p[iI] handler as ip_addr_string()
vsprintf: Do not check address of well-known strings
vsprintf: Consistent %pK handling for kptr_restrict == 0
vsprintf: Shuffle restricted_pointer()
printk: Tie printk_once / printk_deferred_once into .data.once for reset
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
lib/test_printf: Switch to bitmap_zalloc()
Diffstat (limited to 'include/linux/printk.h')
| -rw-r--r-- | include/linux/printk.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/printk.h b/include/linux/printk.h index d7c77ed1a4cb..84ea4d094af3 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -347,7 +347,7 @@ extern int kptr_restrict; #ifdef CONFIG_PRINTK #define printk_once(fmt, ...) \ ({ \ - static bool __print_once __read_mostly; \ + static bool __section(.data.once) __print_once; \ bool __ret_print_once = !__print_once; \ \ if (!__print_once) { \ @@ -358,7 +358,7 @@ extern int kptr_restrict; }) #define printk_deferred_once(fmt, ...) \ ({ \ - static bool __print_once __read_mostly; \ + static bool __section(.data.once) __print_once; \ bool __ret_print_once = !__print_once; \ \ if (!__print_once) { \ |
