Commit 4459b320 authored by Yabin Li's avatar Yabin Li Committed by yangdepei
Browse files

crypto: ccp: It prompt ILLEGAL_MEM_ADDR when using PSPCCP. 

hygon inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I99ZNA



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ccp_find_lsb_regions check from vq_1 but status value start from vq_0.
Fixes: 4b394a23 ("crypto: ccp - Let a v5 CCP provide the same function as v3")

Signed-off-by: default avatarYabin Li <liyabin@hygon.cn>
Signed-off-by: default avataryangdepei <yangdepei@hygon.cn>
parent 65974469

drivers/crypto/ccp/ccp-dev-v5.c

+1 −0
Original line number Diff line number Diff line
@@ -783,6 +783,7 @@ static int ccp_find_lsb_regions(struct ccp_cmd_queue *cmd_q, u64 status) 
	/* Build a bit mask to know which LSBs this queue has access to.

	 * Don't bother with segment 0 as it has special privileges.

	 */

	status >>= LSB_REGION_WIDTH;

	for (j = 1; j < MAX_LSB_CNT; j++) {

		if (status & q_mask)

			bitmap_set(cmd_q->lsbmask, j, 1);