* [PATCH] random: get rid of dead codes from credit_entropy_bits
@ 2020-06-28 11:23 Li RongQing
0 siblings, 0 replies; only message in thread
From: Li RongQing @ 2020-06-28 11:23 UTC (permalink / raw)
To: tytso, arnd, linux-kernel
After commit 90ea1c6436d2 ("random: remove the blocking pool"),
has_initialized is zero always, and initialized of struct
entropy_store is not used
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
drivers/char/random.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index a7cf6aa65908..288cc4464a69 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -500,7 +500,6 @@ struct entropy_store {
unsigned short add_ptr;
unsigned short input_rotate;
int entropy_count;
- unsigned int initialized:1;
unsigned int last_data_init:1;
__u8 last_data[EXTRACT_SIZE];
};
@@ -660,7 +659,7 @@ static void process_random_ready_list(void)
*/
static void credit_entropy_bits(struct entropy_store *r, int nbits)
{
- int entropy_count, orig, has_initialized = 0;
+ int entropy_count, orig;
const int pool_size = r->poolinfo->poolfracbits;
int nfrac = nbits << ENTROPY_SHIFT;
@@ -717,11 +716,6 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
goto retry;
- if (has_initialized) {
- r->initialized = 1;
- kill_fasync(&fasync, SIGIO, POLL_IN);
- }
-
trace_credit_entropy_bits(r->name, nbits,
entropy_count >> ENTROPY_SHIFT, _RET_IP_);
--
2.16.2
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2020-06-28 11:23 [PATCH] random: get rid of dead codes from credit_entropy_bits Li RongQing
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