snd_pcm_ops are not supposed to change at runtime. All functions working with snd_pcm_ops provided by <sound/pcm.h> work with const snd_pcm_ops. So mark the non-const structs as const.
Arvind Yadav (9): [PATCH 1/9] ALSA: ad1816a: constify snd_pcm_ops structures [PATCH 2/9] ALSA: es1688: constify snd_pcm_ops structures [PATCH 3/9] ALSA: es18xx: constify snd_pcm_ops structures [PATCH 4/9] ALSA: gus: constify snd_pcm_ops structures [PATCH 5/9] ALSA: msnd: constify snd_pcm_ops structures [PATCH 6/9] ALSA: emu8000: constify snd_pcm_ops structures [PATCH 7/9] ALSA: sb16: constify snd_pcm_ops structures [PATCH 8/9] ALSA: sb8: constify snd_pcm_ops structures [PATCH 9/9] ALSA: wss: constify snd_pcm_ops structures
sound/isa/ad1816a/ad1816a_lib.c | 4 ++-- sound/isa/es1688/es1688_lib.c | 4 ++-- sound/isa/es18xx.c | 4 ++-- sound/isa/gus/gus_pcm.c | 4 ++-- sound/isa/msnd/msnd.c | 4 ++-- sound/isa/sb/emu8000_pcm.c | 2 +- sound/isa/sb/sb16_main.c | 4 ++-- sound/isa/sb/sb8_main.c | 4 ++-- sound/isa/wss/wss_lib.c | 4 ++-- 9 files changed, 17 insertions(+), 17 deletions(-)