Using %pV can save text.
Replace NV_PRINTK macro with nv_printk and use of vsprintf extension %pV.
Convert the NV_<LEVEL> macros to use nv_printk and neaten them too.
Saves ~40KB or ~5% of total code space for nouveau.
$ size drivers/gpu/drm/nouveau/built-in.o* text data bss dec hex filename 743693 20203 174552 938448 e51d0 drivers/gpu/drm/nouveau/built-in.o.new 777371 20203 181936 979510 ef236 drivers/gpu/drm/nouveau/built-in.o.old
Signed-off-by: Joe Perches joe@perches.com --- drivers/gpu/drm/nouveau/nouveau_drv.c | 20 ++++++++++ drivers/gpu/drm/nouveau/nouveau_drv.h | 62 ++++++++++++++++++-------------- 2 files changed, 55 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c index 8256370e..d8e5273 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.c +++ b/drivers/gpu/drm/nouveau/nouveau_drv.c @@ -485,3 +485,23 @@ module_exit(nouveau_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights"); + +int nv_printk(const struct drm_device *drm_dev, + const char *level, const char *format, ...) +{ + struct va_format vaf; + va_list args; + int r; + + va_start(args, format); + + vaf.fmt = format; + vaf.va = &args; + + r = printk("%s[" DRM_NAME "] " DRIVER_NAME " %s: %pV", + level, pci_name(drm_dev->pdev), &vaf); + + va_end(args); + + return r; +} diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index 72bfc14..beaeeee 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -1471,37 +1471,43 @@ extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val); * Logging * Argument d is (struct drm_device *). */ -#define NV_PRINTK(level, d, fmt, arg...) \ - printk(level "[" DRM_NAME "] " DRIVER_NAME " %s: " fmt, \ - pci_name(d->pdev), ##arg) + +extern __attribute__ ((format (printf, 3, 4))) +int nv_printk(const struct drm_device *drm_dev, + const char *level, const char *format, ...); + #ifndef NV_DEBUG_NOTRACE -#define NV_DEBUG(d, fmt, arg...) do { \ - if (drm_debug & DRM_UT_DRIVER) { \ - NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__, \ - __LINE__, ##arg); \ - } \ +#define NV_DEBUG(d, fmt, arg...) \ +do { \ + if (drm_debug & DRM_UT_DRIVER) { \ + nv_printk(d, KERN_DEBUG, "%s:%d - " fmt, \ + __func__, __LINE__, ##arg); \ + } \ } while (0) -#define NV_DEBUG_KMS(d, fmt, arg...) do { \ - if (drm_debug & DRM_UT_KMS) { \ - NV_PRINTK(KERN_DEBUG, d, "%s:%d - " fmt, __func__, \ - __LINE__, ##arg); \ - } \ +#define NV_DEBUG_KMS(d, fmt, arg...) \ +do { \ + if (drm_debug & DRM_UT_KMS) { \ + nv_printk(d, KERN_DEBUG, "%s:%d - " fmt, \ + __func__, __LINE__, ##arg); \ + } \ } while (0) #else -#define NV_DEBUG(d, fmt, arg...) do { \ - if (drm_debug & DRM_UT_DRIVER) \ - NV_PRINTK(KERN_DEBUG, d, fmt, ##arg); \ +#define NV_DEBUG(d, fmt, arg...) \ +do { \ + if (drm_debug & DRM_UT_DRIVER) \ + nv_printk(d, KERN_DEBUG, fmt, ##arg); \ } while (0) -#define NV_DEBUG_KMS(d, fmt, arg...) do { \ - if (drm_debug & DRM_UT_KMS) \ - NV_PRINTK(KERN_DEBUG, d, fmt, ##arg); \ +#define NV_DEBUG_KMS(d, fmt, arg...) \ +do { \ + if (drm_debug & DRM_UT_KMS) \ + nv_printk(d, KERN_DEBUG, fmt, ##arg); \ } while (0) #endif -#define NV_ERROR(d, fmt, arg...) NV_PRINTK(KERN_ERR, d, fmt, ##arg) -#define NV_INFO(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg) -#define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg) -#define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg) -#define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg) +#define NV_ERROR(d, fmt, arg...) nv_printk(d, KERN_ERR, fmt, ##arg) +#define NV_INFO(d, fmt, arg...) nv_printk(d, KERN_INFO, fmt, ##arg) +#define NV_TRACEWARN(d, fmt, arg...) nv_printk(d, KERN_NOTICE, fmt, ##arg) +#define NV_TRACE(d, fmt, arg...) nv_printk(d, KERN_INFO, fmt, ##arg) +#define NV_WARN(d, fmt, arg...) nv_printk(d, KERN_WARNING, fmt, ##arg)
/* nouveau_reg_debug bitmask */ enum { @@ -1517,9 +1523,11 @@ enum { NOUVEAU_REG_DEBUG_EVO = 0x200, };
-#define NV_REG_DEBUG(type, dev, fmt, arg...) do { \ - if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \ - NV_PRINTK(KERN_DEBUG, dev, "%s: " fmt, __func__, ##arg); \ +#define NV_REG_DEBUG(type, dev, fmt, arg...) \ +do { \ + if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_##type) \ + nv_printk(dev, KERN_DEBUG, "%s: " fmt, \ + __func__, ##arg); \ } while (0)
static inline bool