linux-kernel - [PATCH 2/3] soc: qcom: mdt_loader: Rename mdt_phdr

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Message-Id: <20250605-mdt-loader-validation-and-fixes-v1-2-29e22e7a82f4@oss.qualcomm.com>
Date: Thu, 05 Jun 2025 08:43:01 -0500
From: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-remoteproc@...r.kernel.org,
        Mukesh Ojha <mukesh.ojha@....qualcomm.com>,
        Doug Anderson <dianders@...omium.org>,
        Bjorn Andersson <bjorn.andersson@....qualcomm.com>
Subject: [PATCH 2/3] soc: qcom: mdt_loader: Rename mdt_phdr_valid()

The function checks if a program header refers to a PT_LOAD segment,
that isn't a hash segment (which should be PT_LOAD in the first place),
andwith non-zero size. That's not the definition of "valid", but rather
if it's "loadable".

Rename the function to reflect what it does.

Signed-off-by: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
---
 drivers/soc/qcom/mdt_loader.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
index 1da22b23d19d28678ec78cccdf8c328b50d3ffda..dd3875dd7ef68d1f135efd8efdf5634f27aadd5e 100644
--- a/drivers/soc/qcom/mdt_loader.c
+++ b/drivers/soc/qcom/mdt_loader.c
@@ -43,7 +43,7 @@ static bool mdt_header_valid(const struct firmware *fw)
 	return true;
 }
 
-static bool mdt_phdr_valid(const struct elf32_phdr *phdr)
+static bool mdt_phdr_loadable(const struct elf32_phdr *phdr)
 {
 	if (phdr->p_type != PT_LOAD)
 		return false;
@@ -116,7 +116,7 @@ ssize_t qcom_mdt_get_size(const struct firmware *fw)
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
-		if (!mdt_phdr_valid(phdr))
+		if (!mdt_phdr_loadable(phdr))
 			continue;
 
 		if (phdr->p_paddr < min_addr)
@@ -254,7 +254,7 @@ int qcom_mdt_pas_init(struct device *dev, const struct firmware *fw,
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
-		if (!mdt_phdr_valid(phdr))
+		if (!mdt_phdr_loadable(phdr))
 			continue;
 
 		if (phdr->p_flags & QCOM_MDT_RELOCATABLE)
@@ -354,7 +354,7 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
-		if (!mdt_phdr_valid(phdr))
+		if (!mdt_phdr_loadable(phdr))
 			continue;
 
 		if (phdr->p_flags & QCOM_MDT_RELOCATABLE)
@@ -381,7 +381,7 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
-		if (!mdt_phdr_valid(phdr))
+		if (!mdt_phdr_loadable(phdr))
 			continue;
 
 		offset = phdr->p_paddr - mem_reloc;

-- 
2.49.0