From: Alex Elder <elder@linaro.org>
Date: Fri, 21 Oct 2022 19:13:35 +0000 (-0500)
Subject: net: ipa: remove two memory region checks
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2554322b31994d9a6c3ff6eaaaac7d78bac05d82;p=linux.git

net: ipa: remove two memory region checks

There's no need to ensure table memory regions fit within the
IPA-local memory range.  And there's no need to ensure the modem
header memory region is in range either.  These are verified for all
memory regions in ipa_mem_size_valid(), once we have settled on the
size of IPA memory.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---

diff --git a/drivers/net/ipa/ipa_cmd.c b/drivers/net/ipa/ipa_cmd.c
index 26c3db9f52b18..e46e8f80b1743 100644
--- a/drivers/net/ipa/ipa_cmd.c
+++ b/drivers/net/ipa/ipa_cmd.c
@@ -197,16 +197,6 @@ bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem, bool route)
 		return false;
 	}
 
-	/* Entire memory range must fit within IPA-local memory */
-	if (mem->offset > ipa->mem_size ||
-	    mem->size > ipa->mem_size - mem->offset) {
-		dev_err(dev, "%s table region out of range\n", table);
-		dev_err(dev, "    (0x%04x + 0x%04x > 0x%04x)\n",
-			mem->offset, mem->size, ipa->mem_size);
-
-		return false;
-	}
-
 	return true;
 }
 
@@ -257,15 +247,6 @@ static bool ipa_cmd_header_valid(struct ipa *ipa)
 		return false;
 	}
 
-	/* Make sure the entire combined area fits in IPA memory */
-	if (size > ipa->mem_size || offset > ipa->mem_size - size) {
-		dev_err(dev, "header table region out of range\n");
-		dev_err(dev, "    (0x%04x + 0x%04x > 0x%04x)\n",
-			offset, size, ipa->mem_size);
-
-		return false;
-	}
-
 	return true;
 }