Commit 02dae28f authored by Wei Yang's avatar Wei Yang Committed by Steven Rostedt (VMware)

ftrace: Simplify the dyn_ftrace->flags macro

All the three macro are defined to be used for ftrace_rec_count(). This
can be achieved by (flags & FTRACE_REF_MAX) directly.

Since no other places would use those macros, remove them for clarity.

Also it fixes a typo in the comment.

Link: https://lkml.kernel.org/r/20200831031104.23322-4-richard.weiyang@linux.alibaba.comSigned-off-by: default avatarWei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent be493132
...@@ -432,7 +432,7 @@ bool is_ftrace_trampoline(unsigned long addr); ...@@ -432,7 +432,7 @@ bool is_ftrace_trampoline(unsigned long addr);
* DIRECT - there is a direct function to call * DIRECT - there is a direct function to call
* *
* When a new ftrace_ops is registered and wants a function to save * When a new ftrace_ops is registered and wants a function to save
* pt_regs, the rec->flag REGS is set. When the function has been * pt_regs, the rec->flags REGS is set. When the function has been
* set up to save regs, the REG_EN flag is set. Once a function * set up to save regs, the REG_EN flag is set. Once a function
* starts saving regs it will do so until all ftrace_ops are removed * starts saving regs it will do so until all ftrace_ops are removed
* from tracing that function. * from tracing that function.
...@@ -450,12 +450,9 @@ enum { ...@@ -450,12 +450,9 @@ enum {
}; };
#define FTRACE_REF_MAX_SHIFT 23 #define FTRACE_REF_MAX_SHIFT 23
#define FTRACE_FL_BITS 9
#define FTRACE_FL_MASKED_BITS ((1UL << FTRACE_FL_BITS) - 1)
#define FTRACE_FL_MASK (FTRACE_FL_MASKED_BITS << FTRACE_REF_MAX_SHIFT)
#define FTRACE_REF_MAX ((1UL << FTRACE_REF_MAX_SHIFT) - 1) #define FTRACE_REF_MAX ((1UL << FTRACE_REF_MAX_SHIFT) - 1)
#define ftrace_rec_count(rec) ((rec)->flags & ~FTRACE_FL_MASK) #define ftrace_rec_count(rec) ((rec)->flags & FTRACE_REF_MAX)
struct dyn_ftrace { struct dyn_ftrace {
unsigned long ip; /* address of mcount call-site */ unsigned long ip; /* address of mcount call-site */
......
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