[ORLinux] [TRIVIAL PATCH 00/26] treewide: Add and use vsprintf extension %pSR

[Joe Perches]

Remove the somewhat awkward uses of print_symbol and convert all the
existing uses to a new vsprintf pointer type of %pSR.

print_symbol can be interleaved when it is used in a sequence like:

printk("something: ...");
print_symbol("%s", addr);
printk("\n");

Instead use:

printk("something: %pSR\n", (void *)addr);

Add a new %p[SsFf]R vsprintf extension that can perform the same
symbol function/address/offset formatting as print_symbol to
reduce the number and styles of message logging functions.

print_symbol used __builtin_extract_return_addr for those architectures
like S/390 and SPARC that have offset or masked addressing.
%p[FfSs]R uses the same gcc __builtin

Joe Perches (26):
vsprintf: Add extension %pSR - print_symbol replacement
alpha: Convert print_symbol to %pSR
arm: Convert print_symbol to %pSR
arm64: Convert print_symbol to %pSR
avr32: Convert print_symbol to %pSR
c6x: Convert print_symbol to %pSR
ia64: Convert print_symbol to %pSR
m32r: Convert print_symbol to %pSR
mn10300: Convert print_symbol to %pSR
openrisc: Convert print_symbol to %pSR
powerpc: Convert print_symbol to %pSR
s390: Convert print_symbol to %pSR
sh: Convert print_symbol to %pSR
um: Convert print_symbol to %pSR
unicore32: Convert print_symbol to %pSR
x86: Convert print_symbol to %pSR
xtensa: Convert print_symbol to %pSR
drivers: base: Convert print_symbol to %pSR
gfs2: Convert print_symbol to %pSR
sysfs: Convert print_symbol to %pSR
irq: Convert print_symbol to %pSR
smp_processor_id: Convert print_symbol to %pSR
mm: Convert print_symbol to %pSR
xtensa: Convert print_symbol to %pSR
x86: head_64.S: Use vsprintf extension %pSR not print_symbol
kallsyms: Remove print_symbol

Documentation/filesystems/sysfs.txt | 4 +-
Documentation/printk-formats.txt | 2 +
Documentation/zh_CN/filesystems/sysfs.txt | 4 +-
arch/alpha/kernel/traps.c | 8 ++----
arch/arm/kernel/process.c | 4 +-
arch/arm64/kernel/process.c | 4 +-
arch/avr32/kernel/process.c | 25 ++++++-----------------
arch/c6x/kernel/traps.c | 3 +-
arch/ia64/kernel/process.c | 13 ++++-------
arch/m32r/kernel/traps.c | 6 +---
arch/mn10300/kernel/traps.c | 8 +++---
arch/openrisc/kernel/traps.c | 7 +----
arch/powerpc/platforms/cell/spu_callbacks.c | 12 ++++------
arch/s390/kernel/traps.c | 28 +++++++++++++++-----------
arch/sh/kernel/process_32.c | 4 +-
arch/um/kernel/sysrq.c | 6 +---
arch/unicore32/kernel/process.c | 5 ++-
arch/x86/kernel/cpu/mcheck/mce.c | 13 ++++++-----
arch/x86/kernel/dumpstack.c | 5 +--
arch/x86/kernel/head_64.S | 4 +-
arch/x86/kernel/process_32.c | 2 +-
arch/x86/mm/mmio-mod.c | 4 +-
arch/x86/um/sysrq_32.c | 9 ++-----
arch/xtensa/kernel/traps.c | 6 +---
drivers/base/core.c | 4 +-
fs/gfs2/glock.c | 4 +-
fs/gfs2/trans.c | 3 +-
fs/sysfs/file.c | 4 +-
include/linux/kallsyms.h | 18 -----------------
kernel/irq/debug.h | 15 ++++++-------
kernel/kallsyms.c | 11 ----------
lib/smp_processor_id.c | 2 +-
lib/vsprintf.c | 18 ++++++++++++----
mm/memory.c | 8 +++---
mm/slab.c | 8 ++----
35 files changed, 117 insertions(+), 164 deletions(-)

[Joe Perches]

Use the new vsprintf extension to avoid any possible
message interleaving.

Signed-off-by: Joe Perches <joe at perches.com>
---
arch/openrisc/kernel/traps.c | 7 ++-----
1 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 5cce396..f5c1d0a 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -56,11 +56,8 @@ void show_trace(struct task_struct *task, unsigned long *stack)

while (valid_stack_ptr(context, stack)) {
addr = *stack++;
- if (__kernel_text_address(addr)) {
- printk(" [<%08lx>]", addr);
- print_symbol(" %s", addr);
- printk("\n");
- }
+ if (__kernel_text_address(addr))
+ printk(" [<%08lx>] %pSR\n", addr, (void *)addr);
}
printk(" =======================\n");
}