linux-kernel - [PATCH] habanalabs: fix double assignment in MMU V1

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Date:   Tue, 29 Nov 2022 12:52:17 +0100
From:   Marco Pagani <marpagan@...hat.com>
To:     Oded Gabbay <ogabbay@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>
Cc:     Marco Pagani <marpagan@...hat.com>, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: [PATCH] habanalabs: fix double assignment in MMU V1

Removing double assignment of the hop2_pte_addr
variable in dram_default_mapping_fini().

Dead store reported by clang-analyzer.

Signed-off-by: Marco Pagani <marpagan@...hat.com>
---
 drivers/misc/habanalabs/common/mmu/mmu_v1.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/mmu/mmu_v1.c b/drivers/misc/habanalabs/common/mmu/mmu_v1.c
index 8a40de4a4761..d925dc4dd097 100644
--- a/drivers/misc/habanalabs/common/mmu/mmu_v1.c
+++ b/drivers/misc/habanalabs/common/mmu/mmu_v1.c
@@ -344,7 +344,6 @@ static void dram_default_mapping_fini(struct hl_ctx *ctx)
 		}
 	}
 
-	hop2_pte_addr = hop2_addr;
 	hop2_pte_addr = hop2_addr;
 	for (i = 0 ; i < num_of_hop3 ; i++) {
 		clear_pte(ctx, hop2_pte_addr);
-- 
2.38.1