diff mbox series

[RFC,v1,20/57] crypto: Remove PAGE_SIZE compile-time constant assumption

Message ID 20241014105912.3207374-20-ryan.roberts@arm.com (mailing list archive)
State New
Headers show
Series Boot-time page size selection for arm64 | expand

Commit Message

Ryan Roberts Oct. 14, 2024, 10:58 a.m. UTC 
To prepare for supporting boot-time page size selection, refactor code
to remove assumptions about PAGE_SIZE being compile-time constant. Code
intended to be equivalent when compile-time page size is active.

Updated BUILD_BUG_ON() to test against limit.

Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
---

***NOTE***
Any confused maintainers may want to read the cover note here for context:
https://lore.kernel.org/all/20241014105514.3206191-1-ryan.roberts@arm.com/

 crypto/lskcipher.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Herbert Xu Oct. 26, 2024, 6:54 a.m. UTC | #1 
On Mon, Oct 14, 2024 at 11:58:27AM +0100, Ryan Roberts wrote:
> To prepare for supporting boot-time page size selection, refactor code
> to remove assumptions about PAGE_SIZE being compile-time constant. Code
> intended to be equivalent when compile-time page size is active.
> 
> Updated BUILD_BUG_ON() to test against limit.
> 
> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
> ---
> 
> ***NOTE***
> Any confused maintainers may want to read the cover note here for context:
> https://lore.kernel.org/all/20241014105514.3206191-1-ryan.roberts@arm.com/
> 
>  crypto/lskcipher.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
diff mbox series

Patch

diff --git a/crypto/lskcipher.c b/crypto/lskcipher.c
index cdb4897c63e6f..2b84cefba7cd1 100644
--- a/crypto/lskcipher.c
+++ b/crypto/lskcipher.c
@@ -79,8 +79,8 @@  static int crypto_lskcipher_crypt_unaligned(
 	u8 *tiv;
 	u8 *p;
 
-	BUILD_BUG_ON(MAX_CIPHER_BLOCKSIZE > PAGE_SIZE ||
-		     MAX_CIPHER_ALIGNMASK >= PAGE_SIZE);
+	BUILD_BUG_ON(MAX_CIPHER_BLOCKSIZE > PAGE_SIZE_MIN ||
+		     MAX_CIPHER_ALIGNMASK >= PAGE_SIZE_MIN);
 
 	tiv = kmalloc(PAGE_SIZE, GFP_ATOMIC);
 	if (!tiv)