On Tue, Dec 29, 2020 at 11:26:45AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3
> commit: bbb2832620ac4e136416aa97af7310636422dea9 crypto: stm32 - Fix sparse
> warnings
> date: 4 months ago
> config: arm-randconfig-s032-20201220 (attached as .config)
> compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
> reproduce:
> wget
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
> ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # apt-get install sparse
> # sparse version: v0.6.3-184-g1b896707-dirty
> #
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bbb2832620ac4e136416aa97af7310636422dea9
> git remote add linus
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout bbb2832620ac4e136416aa97af7310636422dea9
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1
> CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <l...@intel.com>
>
>
> "sparse warnings: (new ones prefixed by >>)"
> >> drivers/crypto/stm32/stm32-cryp.c:1232:47: sparse: sparse: incorrect type
> >> in argument 2 (different base types) @@ expected restricted __be32
> >> [usertype] *[assigned] iv @@ got unsigned int [usertype] * @@
> drivers/crypto/stm32/stm32-cryp.c:1232:47: sparse: expected restricted
> __be32 [usertype] *[assigned] iv
> drivers/crypto/stm32/stm32-cryp.c:1232:47: sparse: got unsigned int
> [usertype] *
This patch should fix the problem.
---8<---
This patch changes the cast in stm32_cryp_check_ctr_counter from
u32 to __be32 to match the prototype of stm32_cryp_hw_write_iv
correctly.
Reported-by: kernel test robot <l...@intel.com>
Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au>
diff --git a/drivers/crypto/stm32/stm32-cryp.c
b/drivers/crypto/stm32/stm32-cryp.c
index 2670c30332fa..2a4793176c71 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -1229,7 +1229,7 @@ static void stm32_cryp_check_ctr_counter(struct
stm32_cryp *cryp)
cr = stm32_cryp_read(cryp, CRYP_CR);
stm32_cryp_write(cryp, CRYP_CR, cr & ~CR_CRYPEN);
- stm32_cryp_hw_write_iv(cryp, (u32 *)cryp->last_ctr);
+ stm32_cryp_hw_write_iv(cryp, (__be32 *)cryp->last_ctr);
stm32_cryp_write(cryp, CRYP_CR, cr);
}
--
Email: Herbert Xu <herb...@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
