Patch "crypto: xilinx - call finalize with bh disabled" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    crypto: xilinx - call finalize with bh disabled

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     crypto-xilinx-call-finalize-with-bh-disabled.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit fab13a07c0783fa0fd0880ad7ff6e8d8b1ff7b50
Author: Quanyang Wang <quanyang.wang@xxxxxxxxxxxxx>
Date:   Sun Jan 28 12:29:06 2024 +0800

    crypto: xilinx - call finalize with bh disabled
    
    [ Upstream commit a853450bf4c752e664abab0b2fad395b7ad7701c ]
    
    When calling crypto_finalize_request, BH should be disabled to avoid
    triggering the following calltrace:
    
        ------------[ cut here ]------------
        WARNING: CPU: 2 PID: 74 at crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118
        Modules linked in: cryptodev(O)
        CPU: 2 PID: 74 Comm: firmware:zynqmp Tainted: G           O       6.8.0-rc1-yocto-standard #323
        Hardware name: ZynqMP ZCU102 Rev1.0 (DT)
        pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
        pc : crypto_finalize_request+0xa0/0x118
        lr : crypto_finalize_request+0x104/0x118
        sp : ffffffc085353ce0
        x29: ffffffc085353ce0 x28: 0000000000000000 x27: ffffff8808ea8688
        x26: ffffffc081715038 x25: 0000000000000000 x24: ffffff880100db00
        x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000
        x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450
        x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
        x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0
        x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8
        x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001
        x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000
        x2 : ffffffc7f9653000 x1 : 0000000000000000 x0 : ffffff8802d20000
        Call trace:
         crypto_finalize_request+0xa0/0x118
         crypto_finalize_aead_request+0x18/0x30
         zynqmp_handle_aes_req+0xcc/0x388
         crypto_pump_work+0x168/0x2d8
         kthread_worker_fn+0xfc/0x3a0
         kthread+0x118/0x138
         ret_from_fork+0x10/0x20
        irq event stamp: 40
        hardirqs last  enabled at (39): [<ffffffc0812416f8>] _raw_spin_unlock_irqrestore+0x70/0xb0
        hardirqs last disabled at (40): [<ffffffc08122d208>] el1_dbg+0x28/0x90
        softirqs last  enabled at (36): [<ffffffc080017dec>] kernel_neon_begin+0x8c/0xf0
        softirqs last disabled at (34): [<ffffffc080017dc0>] kernel_neon_begin+0x60/0xf0
        ---[ end trace 0000000000000000 ]---
    
    Fixes: 4d96f7d48131 ("crypto: xilinx - Add Xilinx AES driver")
    Signed-off-by: Quanyang Wang <quanyang.wang@xxxxxxxxxxxxx>
    Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/crypto/xilinx/zynqmp-aes-gcm.c b/drivers/crypto/xilinx/zynqmp-aes-gcm.c
index bf1f421e05f25..74bd3eb63734d 100644
--- a/drivers/crypto/xilinx/zynqmp-aes-gcm.c
+++ b/drivers/crypto/xilinx/zynqmp-aes-gcm.c
@@ -231,7 +231,10 @@ static int zynqmp_handle_aes_req(struct crypto_engine *engine,
 		err = zynqmp_aes_aead_cipher(areq);
 	}
 
+	local_bh_disable();
 	crypto_finalize_aead_request(engine, areq, err);
+	local_bh_enable();
+
 	return 0;
 }
 




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