diff mbox series

[v3,15/19] crypto: x86/aegis - use the new scatterwalk functions

Message ID 20250219182341.43961-16-ebiggers@kernel.org (mailing list archive)
State Not Applicable
Headers show
Series crypto: scatterlist handling improvements | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers fail 7 maintainers not CCed: herbert@gondor.apana.org.au tglx@linutronix.de dave.hansen@linux.intel.com hpa@zytor.com mingo@redhat.com bp@alien8.de x86@kernel.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 23 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2025-02-20--12-00 (tests: 893)

Commit Message

Eric Biggers Feb. 19, 2025, 6:23 p.m. UTC 
From: Eric Biggers <ebiggers@google.com>

In crypto_aegis128_aesni_process_ad(), use scatterwalk_next() which
consolidates scatterwalk_clamp() and scatterwalk_map().  Use
scatterwalk_done_src() which consolidates scatterwalk_unmap(),
scatterwalk_advance(), and scatterwalk_done().

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 arch/x86/crypto/aegis128-aesni-glue.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c
index 01fa568dc5fc4..1bd093d073ed6 100644
--- a/arch/x86/crypto/aegis128-aesni-glue.c
+++ b/arch/x86/crypto/aegis128-aesni-glue.c
@@ -69,14 +69,14 @@  static void crypto_aegis128_aesni_process_ad(
 	struct aegis_block buf;
 	unsigned int pos = 0;
 
 	scatterwalk_start(&walk, sg_src);
 	while (assoclen != 0) {
-		unsigned int size = scatterwalk_clamp(&walk, assoclen);
+		unsigned int size;
+		const u8 *mapped = scatterwalk_next(&walk, assoclen, &size);
 		unsigned int left = size;
-		void *mapped = scatterwalk_map(&walk);
-		const u8 *src = (const u8 *)mapped;
+		const u8 *src = mapped;
 
 		if (pos + size >= AEGIS128_BLOCK_SIZE) {
 			if (pos > 0) {
 				unsigned int fill = AEGIS128_BLOCK_SIZE - pos;
 				memcpy(buf.bytes + pos, src, fill);
@@ -95,13 +95,11 @@  static void crypto_aegis128_aesni_process_ad(
 
 		memcpy(buf.bytes + pos, src, left);
 		pos += left;
 		assoclen -= size;
 
-		scatterwalk_unmap(mapped);
-		scatterwalk_advance(&walk, size);
-		scatterwalk_done(&walk, 0, assoclen);
+		scatterwalk_done_src(&walk, mapped, size);
 	}
 
 	if (pos > 0) {
 		memset(buf.bytes + pos, 0, AEGIS128_BLOCK_SIZE - pos);
 		aegis128_aesni_ad(state, buf.bytes, AEGIS128_BLOCK_SIZE);