linux-kernel - [PATCH] habanalabs: remove unused hash

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Message-Id: <20200707212954.26487-1-oshpigelman@habana.ai>
Date:   Wed,  8 Jul 2020 00:29:54 +0300
From:   Omer Shpigelman <oshpigelman@...ana.ai>
To:     oded.gabbay@...il.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] habanalabs: remove unused hash

Remove an old hash that is not in use anymore.

Signed-off-by: Omer Shpigelman <oshpigelman@...ana.ai>
---
 drivers/misc/habanalabs/habanalabs.h | 2 --
 drivers/misc/habanalabs/mmu.c        | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index a61aab09778c..ea0fd178accb 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -780,7 +780,6 @@ struct hl_va_range {
  * struct hl_ctx - user/kernel context.
  * @mem_hash: holds mapping from virtual address to virtual memory area
  *		descriptor (hl_vm_phys_pg_list or hl_userptr).
- * @mmu_phys_hash: holds a mapping from physical address to pgt_info structure.
  * @mmu_shadow_hash: holds a mapping from shadow address to pgt_info structure.
  * @hpriv: pointer to the private (Kernel Driver) data of the process (fd).
  * @hdev: pointer to the device structure.
@@ -814,7 +813,6 @@ struct hl_va_range {
  */
 struct hl_ctx {
 	DECLARE_HASHTABLE(mem_hash, MEM_HASH_TABLE_BITS);
-	DECLARE_HASHTABLE(mmu_phys_hash, MMU_HASH_TABLE_BITS);
 	DECLARE_HASHTABLE(mmu_shadow_hash, MMU_HASH_TABLE_BITS);
 	struct hl_fpriv		*hpriv;
 	struct hl_device	*hdev;
diff --git a/drivers/misc/habanalabs/mmu.c b/drivers/misc/habanalabs/mmu.c
index a290d6b49d78..04303950e630 100644
--- a/drivers/misc/habanalabs/mmu.c
+++ b/drivers/misc/habanalabs/mmu.c
@@ -502,7 +502,6 @@ int hl_mmu_ctx_init(struct hl_ctx *ctx)
 		return 0;
 
 	mutex_init(&ctx->mmu_lock);
-	hash_init(ctx->mmu_phys_hash);
 	hash_init(ctx->mmu_shadow_hash);
 
 	return dram_default_mapping_init(ctx);
-- 
2.17.1