Am 31.05.24 um 08:52 schrieb Yang Wang:
Adding formatting string feature to improve function flexibility.
Signed-off-by: Yang Wang <kevinyang.w...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 30 +++++++++++++++++------
drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 3 ++-
2 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
index a9de78bb96e2..a452d9b6afdb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
@@ -28,6 +28,8 @@
#include "amdgpu.h"
#include "amdgpu_ucode.h"
+#define AMDGPU_MAX_FW_NAME_LEN (128)
Please drop that define and use NAME_MAX instead.
+
static void amdgpu_ucode_print_common_hdr(const struct common_firmware_header
*hdr)
{
DRM_DEBUG("size_bytes: %u\n", le32_to_cpu(hdr->size_bytes));
@@ -1432,28 +1434,40 @@ void amdgpu_ucode_ip_version_decode(struct
amdgpu_device *adev, int block_type,
*
* @adev: amdgpu device
* @fw: pointer to load firmware to
- * @fw_name: firmware to load
+ * @fmt: firmware name format string
+ * @...: variable arguments
*
* This is a helper that will use request_firmware and amdgpu_ucode_validate
* to load and run basic validation on firmware. If the load fails, remap
* the error code to -ENODEV, so that early_init functions will fail to load.
*/
int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware
**fw,
- const char *fw_name)
+ const char *fmt, ...)
{
- int err = request_firmware(fw, fw_name, adev->dev);
+ char fname[AMDGPU_MAX_FW_NAME_LEN];
+ va_list ap;
+ int r;
+
+ va_start(ap, fmt);
+ r = vsnprintf(fname, sizeof(fname), fmt, ap);
+ va_end(ap);
+ if (r == sizeof(fname)) {
+ dev_warn(adev->dev, "amdgpu firmware name buffer overflow\n");
+ return -EOVERFLOW;
+ }
- if (err)
+ r = request_firmware(fw, fname, adev->dev);
+ if (r)
return -ENODEV;
- err = amdgpu_ucode_validate(*fw);
- if (err) {
- dev_dbg(adev->dev, "\"%s\" failed to validate\n", fw_name);
+ r = amdgpu_ucode_validate(*fw);
+ if (r) {
+ dev_dbg(adev->dev, "\"%s\" failed to validate\n", fname);
release_firmware(*fw);
*fw = NULL;
}
- return err;
+ return r;
}
/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
index db745ab7b0c8..5bc37acd3981 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
@@ -594,8 +594,9 @@ void amdgpu_ucode_print_rlc_hdr(const struct
common_firmware_header *hdr);
void amdgpu_ucode_print_sdma_hdr(const struct common_firmware_header *hdr);
void amdgpu_ucode_print_psp_hdr(const struct common_firmware_header *hdr);
void amdgpu_ucode_print_gpu_info_hdr(const struct common_firmware_header
*hdr);
+__printf(3, 4)
int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware
**fw,
- const char *fw_name);
+ const char *fmt, ...);
That should probably have __printf() annotation so that the compiler can
check the format and arguments.
See here
https://elixir.free-electrons.com/linux/v6.10-rc2/source/include/linux/compiler_attributes.h#L171
Regards,
Christian.
void amdgpu_ucode_release(const struct firmware **fw);
bool amdgpu_ucode_hdr_version(union amdgpu_firmware_header *hdr,
uint16_t hdr_major, uint16_t hdr_minor);
