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msgb: Allow size==headroom in msgb_alloc_headroom*() 

Nothinh really forbids this case, it's totally fine allocating all space
of msgb as headroom. osmo-pcu actually does that in
gprs_rlcmac_ul_tbf::snd_ul_ud().

Related: OS#4029
Change-Id: Ibe05d08e3169a2603e891f76682a3b352a93ec7a
This commit is contained in:
Pau Espin 2019-09-26 17:46:27 +02:00
parent 7bfaba51b0
commit ec4b62705d
1 changed files with 2 additions and 2 deletions
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4
include/osmocom/core/msgb.h
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@ -518,7 +518,7 @@ static inline int msgb_l3trim(struct msgb *msg, int l3len)
static inline struct msgb *msgb_alloc_headroom_c(const void *ctx, int size, int headroom,
const char *name)
{
osmo_static_assert(size > headroom, headroom_bigger);
osmo_static_assert(size >= headroom, headroom_bigger);
struct msgb *msg = msgb_alloc_c(ctx, size, name);
if (msg)
@ -540,7 +540,7 @@ static inline struct msgb *msgb_alloc_headroom_c(const void *ctx, int size, int
static inline struct msgb *msgb_alloc_headroom(int size, int headroom,
const char *name)
{
osmo_static_assert(size > headroom, headroom_bigger);
osmo_static_assert(size >= headroom, headroom_bigger);
struct msgb *msg = msgb_alloc(size, name);
if (msg)